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General Motors announced a recall Wednesday of 3.46 million GM trucks and SUVs for a braking issue that has been linked to 113 accidents and 13 injuries. The problem arises from a vacuum pump issue where the pump make less vacuum over time, thereby increasing the braking effort. The pump is lubricated by engine oil and can accumulate debris and oil sludge lessening the pump's effectiveness. The recall covered model years 2014 - 2018 of Cadillac Escalade, Chevrolet Silverado, Suburban, and Tahoe, and GMC Sierra and Yukon. GM told the NHTSA that the pump design was only used during those years of manufacture. In a smaller recall, GM is recalling 177,000 2018 Chevrolet Malibus with the 1.5-liter Turbo engine where an error in the engine control computer could disable the fuel injectors. View full article

GM released power figures today for the new inline 6-cylinder diesel engine that will be available in the Chevrolet Silverado and GMC Sierra. Available at the same price as the 6.2 liter model, GM promises the new engine will change perceptions about diesel performance and refinement. GM recently announced the delay of the 3.0-liter diesel until the 2020 model year due to emissions certification delays. Paired with a 10-speed automatic transmission, the diesel produces an SAE-certified 277 horsepower and 460 lb-ft of torque with 95 percent of that torque being available at just 1,250 RPM. Torque peak comes at 1500 rpm and peak horsepower at 3750 rpm. The powertrain is setup to offer diesel exhaust braking to help slow the vehicle when the truck is in tow-haul mode, limiting the number of applications of the brakes to save on brake wear. The engine also has a user selective start-stop function to save additional fuel in city driving. 2019 CHEVROLET SILVERADO 3.0L DURAMAX TURBO-DIESEL SPECIFICATIONS Type: Duramax 3.0L DOHC Turbo Diesel I6 Bore & Stroke (in. / mm): 3.30 x 3.54 inches (84mm x 90mm) Block Material: Aluminum Cylinder Head Material: Aluminum Compression Ratio: 15.0: 1 Firing Order: 1-5-3-6-2-4 Valvetrain: Dual-overhead camshafts, four-valves per cylinder Air Delivery: Single variable-geometry turbocharger; intercooling system. 42.8-psi / 2.95 bar max boost Fuel Delivery: High-pressure, common-rail direct injection (36,250 psi / 2500 bar); electronic throttle valve Ignition System: Compression Max Engine Speed: 5100 rpm Additional Features: Continuously variable oil pump; engine oil cooler, automatic stop/start, Active Thermal Management, Emissions Control: Low-pressure Exhaust Gas Recirculation (EGR); Selective Catalyst Reduction on Filter (SCRF) Horsepower (hp / kW @ rpm): 277 / 204 @ 3750 (SAE certified) Torque (lb.-ft. / Nm @ rpm): 460 / 624 @ 1500 (SAE certified) Manufacturing Location (of globally sourced parts) Flint, Mich. Chevy Press release on page 2 2020 CHEVROLET SILVERADO’S NEW, ADVANCED 3.0L DURAMAX TURBO-DIESEL REDEFINES EXPECTATIONS No-compromise engine delivers refinement, performance and efficiency 2019-06-03 DETROIT — The all-new 2020 Chevrolet Silverado’s available 3.0L Duramax inline-six turbo-diesel engine adds choice and versatility for full-size truck customers, offering class-leading torque and horsepower in addition to focusing on fuel economy and capability. It is the first-ever inline-six turbo-diesel offered in Chevrolet’s full-size light-duty trucks. Chevrolet engineers started with a clean-sheet design and developed an all-new engine that leverages the efficiency and refinement advantages of the inline six-cylinder architecture and incorporates advanced combustion and emissions technologies to optimize performance and efficiency. It is priced identically to the 6.2L V-8 as a $2,495 premium over a 5.3L V-8 model or $3,890 over a 2.7L Turbo model. “From the moment the engine is started, to its idle, acceleration and highway cruising, the 3.0L Duramax performance will change perceptions of what a diesel engine can offer in refinement,” said Nicola Menarini, director for Diesel Truck Engine Program Execution. “With advanced technologies that draw on global diesel expertise, it’s a no-compromise choice for those who want the capability and driving range of a diesel in a light-duty truck.” Available on LT, RST, LTZ and High Country models, the 3.0L Duramax diesel rounds out the new Silverado’s range of six propulsion choices, each tailored to suit customers’ needs for performance, efficiency, technology and value. It is rated at an SAE-certified 277 horsepower and 460 lb-ft of torque delivering 95 percent of peak torque at just 1,250 rpm. Peak torque is sustained from 1,500 rpm through 3,000 rpm, providing a powerfully smooth and satisfying driving experience. The 3.0L Duramax is paired with GM’s 10L80 10-speed automatic transmission, featuring a centrifugal pendulum absorber torque converter that reduces vibrations to improve smoothness, reinforcing its performance, efficiency and refinement. This combination also offers exhaust braking, which uses the diesel engine’s compression to help slow the vehicle, requiring fewer brake applications by the driver when in Tow Haul mode. Innovative Engine Technologies The inline six-cylinder architecture offers inherent efficiency and refinement, but the team expanded with smart technology choices to help improve efficiency and weight while optimizing the truck experience. A lightweight aluminum block and cylinder head reduce overall mass, and Active Thermal Management enhances efficiency and cold-weather warm-up. Ceramic glow plugs also help with shorter heat-up times and a quicker cold start, meaning the engine block heater is not needed until -22 degrees F. Towing is an important part of owning a truck, and customers can gain additional confidence thanks to the exhaust brake available in tow-haul mode. The water charge air cooler, coupled with low pressure EGR, reduces time to torque. The variable geometry turbocharger helps provide a greater balance of performance and efficiency, and an electronically variable intake manifold helps optimize performance across the rpm band. Inherently efficient and balanced Compared to a DOHC V-6, the inline-six architecture offers greater efficiency from the reduced friction of operating only two camshafts and their associated valvetrain components. The I6 configuration offers the perfect balance of primary and secondary forces, without the need for balancing shafts. “In addition to reduced friction, the architecture enables smooth operation,” Menarini said. “The new Duramax 3.0L elevates the 2019 Silverado with one of the most refined and efficient diesel engines in the segment.” Along with supporting elements such as a tuned air induction system and other noise-attenuating elements, the 3.0L Duramax delivers exceptional quietness and smoothness at all engine speeds. All-aluminum construction and tough rotating assembly The 3.0L Duramax cylinder block is made of a cast aluminum alloy that provides the strength required to support the high combustion pressures that occur within a diesel engine, while also offering an approximately 25 percent mass savings over a comparable cast iron engine block. Iron cylinder liners are used within the aluminum block to insure truck durability. There are seven nodular iron main bearing caps that help ensure the block’s strength under those high combustion pressures, while also enabling accurate location of the rotating assembly. A deep-skirt block design, where the block casting extends below the crankshaft centerline, also contributes to the engine’s stiffness and refinement. It’s complemented by a stiffness-enhancing aluminum lower crankcase extension attached to the main bearing caps. The rotating assembly consists of a forged steel crankshaft, forged steel connecting rods and hypereutectic aluminum pistons. The alloys in the respective castings for the rods and pistons make them lightweight and durable. Silicon is blended with the aluminum for heat resistance and tolerance within the piston cylinders, which enhances performance and makes the engine quiet. A thick piston crown — the top of the piston — and reinforced top ring add strength to support the tremendous cylinder pressures enabled by turbocharging and the engine’s high 15.0:1 compression ratio. DOHC Cylinder Head and Rear Cam Drive Overhead camshafts offer a direct, efficient means of operating the valves, while four valves per cylinder activated by maintenance-free finger followers with hydraulic lash adjusters increase airflow in and out of the engine. This arrangement is integrated on the Duramax 3.0L’s lightweight aluminum cylinder head, which is topped with a lightweight composite cam cover that incorporates the crankcase ventilation and oil separation systems. A pair of lightweight, assembled camshafts actuates 28.35 mm diameter (1.12-inch) intake and 24.55 mm diameter (0.97-inch) exhaust valves. The camshaft drivetrain is uniquely located at the rear (flywheel side) of the engine, for greater refinement and packaging considerations for the comparatively long inline-six. A crankshaft-driven chain drives the high-pressure direct-injection fuel pump, while a chain driven by the fuel pump drives both intake and exhaust camshafts. A smaller belt drives the variable flow oil pump from the crankshaft. Additional Technology Highlights Variable geometry turbocharging enables the Duramax 3.0L engine to deliver class-leading horsepower with minimal effect on overall efficiency. The system uses closed loop controlled vanes position and sophisticated electronic controls to automatically adjust boost pressure to the desired value based on engine running conditions and instantaneous power demand. The liquid-cooled turbocharger features a low-friction ball-bearing shaft and is mounted close to the exhaust outlet of the engine for quicker spool-up of the turbine and quicker light-off of the exhaust catalyst. A water-to-air intercooling system produces a cooler higher density air charge for greater power. Maximum boost pressure is 43,5 psi (300 Kpa) absolute. Low-pressure EGR: The Duramax 3.0L utilizes new low-pressure Exhaust Gas Recirculation to optimize performance and efficiency. The EGR system diverts some of the engine-out exhaust gas and mixes it back into the fresh intake air stream, which is drawn into the cylinder head for combustion. That lowers combustion temperatures and rates. Traditionally, EGR systems in diesel applications recirculate exhaust gases between the two high-pressure points, the exhaust manifold(s) and intake manifold. However, it generally requires efficiency-robbing assistance from the turbocharger or other supporting elements to achieve the pressure differential required for sufficient EGR flow rates. The new low-pressure system adds to the high-pressure system, supporting continual adjustment of exhaust backpressure for more efficient operation. It recirculates gases between the low-pressure points in the exhaust system (downstream of the particulate filter) and after the compressor inlet. When the low-pressure EGR is activated by an electronically controlled valve, the engine burns exhaust gas that has already passed through the particulate filter. That increases the turbocharger’s efficiency, which helps overall vehicle efficiency without deteriorating the rate of particulate matter emitted by the engine. A variable intake manifold offers dual air intake pathways for each cylinder. Electronically controlled flaps — one for each cylinder — shorten or lengthen the airflow to each cylinder. This optimizes the airflow into the engine and improves performance and responsiveness across the rpm band, particularly at lower engine speeds. A variable-pressure oiling system with a continuously variable-displacement vane oil pump enhances efficiency by optimizing oil pressure as a function of engine speed and load. With it, the oil supply is matched to the engine requirements rather than the excessive supply of a conventional, fixed-displacement oil pump. The engine uses low-friction Diesel Dexos 0W20 oil. Oil jets located in the block are employed for performance and temperature control. They target the inner core of the piston with an extra layer of cooling, friction-reducing oil. The jets reduce piston temperature, allowing the engine to produce more power and enhance long-term durability than engines without the technology. Active Thermal Management helps the engine warm up quickly to achieve and maintain its optimal engine temperature for performance and efficiency over the entire engine operating range. The system uses a three-actuator rotary valve system to distribute coolant through the engine in a targeted manner. It sends heat where it’s needed to warm up the engine to reduce friction and heat the passenger cabin or cools when needed for high-power operation. The Duramax 3.0L also features split cooling between the block and head. Common rail direct fuel injection of 2,500 bar (36,250 psi) helps generates class-leading horsepower and torque. The system’s pressure is generated by an engine-driven twin-piston pump sending fuel to solenoid-activated injectors with nine-hole nozzles that support precise metering of the fuel for a smooth idle and lower combustion noise. The fuel system is capable of multiple injections per combustion cycle — up to 10 times per injector — for more consistent and stable combustion performance that translates into smoothness and refinement, particularly at idle. Electronic throttle valve: The Duramax 3.0L features an electronic throttle valve to regulate intake manifold pressure in order to optimize exhaust gas recirculation rates. It also contributes to a smooth engine shutdown via a more controlled method of airflow reduction. Ceramic glow plugs used in the Duramax 3.0L heat up more quickly and hotter than conventional metal-based glow plugs, helping the engine start and heat up more quickly in cold weather. The Duramax 3.0L achieves unassisted and assisted starting temperatures of -22 F (-30 C) and -40 F (-40 C) respectively. Stop/start technology helps optimize efficiency in city driving. The driver-selectable system shuts off the engine at stoplights and other stop-and-go situations. The engine automatically restarts when the driver takes their foot off the brake. ABOUT CHEVROLET Founded in 1911 in Detroit, Chevrolet is one of the world's largest car brands, doing business in more than 100 countries and selling more than 4.0 million cars and trucks a year. Chevrolet provides customers with fuel-efficient vehicles that feature engaging performance, design that makes the heart beat, passive and active safety features and easy-to-use technology, all at a value. More information on Chevrolet models can be found at www.chevrolet.com. # # # 2019 CHEVROLET SILVERADO 3.0L DURAMAX TURBO-DIESEL SPECIFICATIONS Type: Duramax 3.0L DOHC Turbo Diesel I6 Bore & Stroke (in. / mm): 3.30 x 3.54 inches (84mm x 90mm) Block Material: Aluminum Cylinder Head Material: Aluminum Compression Ratio: 15.0: 1 Firing Order: 1-5-3-6-2-4 Valvetrain: Dual-overhead camshafts, four-valves per cylinder Air Delivery: Single variable-geometry turbocharger; intercooling system. 42.8-psi / 2.95 bar max boost Fuel Delivery: High-pressure, common-rail direct injection (36,250 psi / 2500 bar); electronic throttle valve Ignition System: Compression Max Engine Speed: 5100 rpm Additional Features: Continuously variable oil pump; engine oil cooler, automatic stop/start, Active Thermal Management, Emissions Control: Low-pressure Exhaust Gas Recirculation (EGR); Selective Catalyst Reduction on Filter (SCRF) Horsepower (hp / kW @ rpm): 277 / 204 @ 3750 (SAE certified) Torque (lb.-ft. / Nm @ rpm): 460 / 624 @ 1500 (SAE certified) View full article

GM is delaying the launch of the new inline-6 diesel engine bound for the GMC Sierra 1500 and Chevrolet Silverado 1500. No longer available for ordering on the 2019s, GM has pushed the availability into the 2020 model year. According the GM, the emissions certification process on the engine is taking longer than normal. Customers who ordered a 2019 Silverado or Sierra with the diesel engine will have their orders canceled and will need to resubmit the order for a 2020 model year vehicle once they become available for order. GM has yet to open orders for 2020 truck models with the diesel engine, but a GM spokesperson said that it will be "soon". Assuming the current pricing holds, the 3.0 liter Duramax diesel will be priced $2,495 over a 5.3 liter V8 and $2,890 over the 4-cylinder 2.7-liter turbo. Meanwhile for 2020, GM is expanding the availability of adaptive cruise control and the 10-speed automatic across the lineup. At Chevy, the Silverado will now have the optional 6.2 liter V8 on five out of the eight trim levels. The 6.2 V8 will be paired with the 10-speed automatic and available on the Custom Trail Boss, RST, LT Trail Box, LTZ, and High Country. At GMC, the CarbonPro box will be available at no additional cost when paired with certain other packages on the Sierra AT4 and Sierra Denali, while the double cab Sierra Elevation Trim will now also be available in a crew cab. View full article

The Chevrolet Silverado and GMC Sierra really don't have many traits that set them apart, aside from different front-end styling. But GMC is hoping the new 2019 Sierra, making its debut today, will be able to distinguish itself from its Chevrolet brethren. To do this, GMC has two new features that are exclusive to the Sierra. First is the CarbonPro bed. Optional on the Denali, the bed is comprised of lightweight carbon fiber composite panels for the inner panels and floor. Not only does it promise "best-in-class dent, scratch and corrosion resistance", it also drop 62 pounds out of the Sierra's curb weight. Second is the MultiPro Tailgate that offers "six unique functions and positions " such as standing workstation. The Sierra's exterior takes a bold approach with a larger front grille and C-Shaped headlights. Denali models appear to have a lot of chrome trim. 22-inch wheels are standard equipment on the Denali and SLT. We don't know much about the exteriors for lesser Sierra models as GMC is focusing on the Denali and SLT models for the time being. Like the Silverado, GMC has focused on cutting weight in the 2019 Sierra - up to 360 pounds depending on the configuration. Aluminum panels are in use for the doors, hood, and tailgate. Don't expect any drastic differences between the Sierra's and Silverado's interior aside from some additional chrome trim. The Sierra does come with some interesting tech including a full-color heads-up display, a trailering smartphone app that allows a driver to check the lights, trailer tire pressures, and perform electrical diagnostics; and hitch guidance system to make hooking up a trailer easier. Engines will include the 5.3L and 6.2L V8s, and the all-new 3.0L turbodiesel inline-six. We'll hopefully have more details and pictures as GMC will be holding an event later tonight in Detroit. The 2019 Sierra arrives at dealers this fall. Source: GMC Press Release is on Page 2 GMC Introduces the Next Generation 2019 Sierra Commanding design, segment-leading technologies redefine premium truck DETROIT — GMC is taking its most popular pickup truck to the next level with the completely redesigned 2019 Sierra Denali and SLT. Distinguished by bold design and segment-leading technologies, the next generation Sierra Denali once again redefines the premium pickup, while advancing Denali’s legacy as the pinnacle of GMC design, capability and refinement. “GMC ignited the premium truck segment 17 years ago with the original launch of the Sierra Denali,” said Duncan Aldred, vice president of Global GMC. “The next generation 2019 Sierra Denali establishes a new benchmark in capability and refinement. It exemplifies precision in every detail.” Powerful proportions and distinctive Denali design help define the Sierra’s unmistakable exterior, while the driver-focused cabin strengthens the brand’s reputation for refinement with premium materials, improved interior space and innovative storage solutions. The 2019 Sierra Denali affirms its position as the most premium Sierra ever with segment-leading technologies and exclusive features, including: GMC Exclusive, Industry-first MultiPro Tailgate is the most innovative pickup tailgate ever, with six unique functions and positions offering enhanced second-tier loading and load-stop solutions, a standing workstation and easier access to items in the box. GMC Exclusive, Industry-first Carbon Fiber Pickup Box, the CarbonPro, was developed to increase durability, efficiency and functionality while offering best-in-class dent, scratch and corrosion resistance, making it the most durable pickup box in the segment. All-new ProGrade Trailering System with Trailering App offers a connected comprehensive suite of trailering technology that brings more confidence to the towing experience than ever before. Segment-first Multi-Color Head-Up Display projects key, customizable vehicle data on the windshield in a 3x7-inch display to help drivers keep their eyes on the road. Segment-first Rear Camera Mirror offers an optimized view via an available dual-function interior mirror that expands vision to overcome common visual obstructions like occupants or cargo. This next generation system features a higher resolution camera and display and the ability to tilt or zoom the view. The redesigned Sierra Denali offers a full suite of available advanced safety features, along with exclusive chassis technologies such as Adaptive Ride Control. “The heritage of the GMC brand is rooted in full-size trucks, of which the Sierra is our cornerstone, with our SLT and Denali models contributing 87 percent of our total crew cab sales,” Aldred said. “The next generation Sierra caters to these unique customers who demand a premium, innovative truck that supports their professional and personal passions.” A commanding presence The 2019 Sierra Denali debuts a profound new GMC design. A taller, more confident stance gives Sierra Denali powerful proportions complemented by hallmark details such as a chrome grille with a sharp, precise dimensional pattern that epitomizes the truck’s attention to detail. “The next generation Sierra Denali has a deliberate, commanding presence,” said Matt Noone, director of design, GMC Exteriors. “Its unmistakable design embodies the essence of GMC, while advancing the brand’s core styling elements — rooted in inherent capability — with a new expression of its signature cues.” Sierra shows refinement and strength through a larger, more-dominant upright grille, a taller hood, and a bolder, more pronounced take on GMC’s C-shaped lighting signature. Advanced lighting technology distinguishes the Sierra Denali from every other truck on the road. GMC’s front lighting signature is conveyed through a prominent “light blade” that delivers uniform LED illumination for the daytime running lamps. LEDs are also used for the headlamps, taillamps, fog lamps and other illuminative elements, with lenses constructed from durable material with an almost crystalline quality. The truck is larger than the previous truck in virtually every dimension, and the larger grille and dramatic lighting accentuate its broad-shouldered stance. The wheels are pushed closer to the corners and wear larger diameter tires. Denali features available 22-inch Ultra Bright aluminum wheels; the SLT model offers its own unique 22-inch dark aluminum wheels finished with chrome accents. New, more prominent badging includes a bold DENALI nameplate on the tailgate —expressed in a new block-style typeface that echoes the truck’s strong proportions — below the signature GMC identification. An elevated interior refined The Sierra Denali’s new interior builds on the refinement and sophistication that have become synonymous with Denali, topping the segment with best-in-class front head- and legroom (maximum), providing a more spacious, driver-centric environment finished with premium materials. Putting the driver at the center of experience starts with a higher seating position that offers a confident view behind the wheel. The optimized ergonomics emphasize easy, intuitive interaction with the vehicle’s technologies, such as the all-new Trailering App and segment-first Head-Up Display. Denali-exclusive materials — including premium leather-appointed seating, authentic open-pore wood trim and dark-finish aluminum decor — help raise the interior to a new level of refinement. The exclusive leather appointments have a distinctive, large-pebbled grain with a contrasting stitch pattern that is both premium in appearance and touch without sacrificing durability, and the wood trim features an open-pore texture evocative of hand-planed furniture. When it comes to the space and storage vital to truck customers, the 2019 Sierra’s crew cab has nearly 3 inches of additional rear-seat legroom compared to the current model. The outboard rear seat backs open to reveal rectangular storage spaces large enough for storing tablets or laptops, tie-down cords, umbrellas or other important accessories. Groundbreaking cargo box capability and materials The next generation 2019 Sierra debuts a GMC exclusive, industry-first MultiPro Tailgate that is the segment’s most innovative tailgate ever. Standard on SLT and Denali, the MultiPro Tailgate features six unique functions and positions, offering enhanced second-tier loading and load-stop solutions, a standing workstation mode and easier access to items in the box. The MultiPro Tailgate also incorporates a step entry and egress mode that, when paired with the assist handle, offers both step and seated functionality, with a maximum weight capacity of 375 pounds (170 kg). Ease of use is enhanced with two buttons on the tailgate handle that allow convenient inner gate release. This multifunctional tailgate offers proven strength and durability, having undergone more testing and validation than any tailgate in GM’s history. Sierra is the first and only truck to offer the MultiPro Tailgate, providing premium truck customers the ultimate flexibility. MultiPro Tailgate will be standard on Denali and SLT. The cargo boxes also offer best-in-class cargo volume — 63 cubic feet (1,784 liters) on the short box, as well as additional tie-downs and a new, available 110-volt power outlet. The bed continues to be made of roll-formed, high-strength steel, yet a revised alloy offers 50 percent more strength than the current model. The 2019 Sierra Denali will offer, later in the model year, an available GMC exclusive and industry-first carbon fiber box — the CarbonPro — developed to increase durability, efficiency and functionality of the truck. It replaces the standard steel inner panels and floor with a lightweight, purpose-designed carbon fiber composite that offers best-in-class dent, scratch and corrosion resistance, making it the most durable pickup box in the segment. “In 116 years of making GMC pickup trucks, our industry-first carbon fiber box is the toughest and most durable pickup box we have ever made,” Aldred said. The new CarbonPro box is 62 pounds (28 kg) lighter than the steel version, and is one example of GMC’s strategic use of materials in engineering the Sierra. The strategy also incorporates aluminum for the doors, hood and tailgate, while relying on steel for the fenders, roof and standard cargo box to shave up to 360 pounds (163 kg) from Sierra compared today’s model. ProGrade Trailering System with Trailering App The 2019 Sierra offers a more confident towing experience thanks to GMC’s new ProGrade Trailering System, standard on Denali and SLT. The trailering system includes an all-new Trailering App featuring a Pre-Departure checklist, Maintenance Reminders, Trailer Light Test, Trailer Electrical Diagnostics and Trailer Tire Pressure and Temperature Monitoring. Many of the Trailering App’s functions, including the lighting test and pre-departure checklist, are also available with the MyGMC app on compatible Android and iOS smartphones, a feature that offers great convenience when outside the truck or trailer. The next generation Sierra also offers Hitch Guidance with Hitch View and Auto Electric Park Brake to help with perfect positioning when hitching. The available side view cameras and a trailer-mounted HD camera provide additional assistance when driving down the road or in reverse. With exclusive Trailer Theft Detection, owners can receive text and mobile alerts from OnStar when the trailer has been detached from the truck without permission. Purposeful technologies Seamless, driver-focused technology has long been a Denali standard, and the 2019 Sierra Denali establishes a new benchmark by incorporating purposeful technologies. These technologies work together to increase functionality and enhance comfort and convenience. Highlights include: Segment-first Multi-color 3x7 Head-Up Display: The 2019 Sierra is the first full-size truck to offer this technology, which projects key vehicle information on the windshield within the driver’s line of sight. Advanced GMC infotainment: This new, dynamic platform offers a smartphone-like experience with an intuitive interface, faster response and improved voice recognition. Sierra Denali’s standard 8-inch diagonal system includes navigation. Segment-first Rear Camera Mirror: This available dual-function interior mirror offers an optimized camera view that can help the driver’s view around potential vision obstructions such as occupants or cargo, while also offering a greater field of vision. This next gen system features a higher resolution camera, a higher resolution display and the ability to tilt or zoom the view. A conventional mirror view is also available. Surround Vision: Offering a bird’s-eye view of the truck, this available feature displays an overhead image on the infotainment screen, helping the driver detect potential obstacles when backing up, including when trailering. Full suite of advanced safety features: The 2019 Sierra Denali offers a full range of available advanced safety features, including Side Blind Zone Alert, Pedestrian Detection and Low Speed Forward Automatic Braking. Sierra performance New versions of the proven 6.2L and 5.3L V-8 engines will be joined by an all-new 3.0L inline-six turbo-diesel engine, expanding the powertrain lineup for the 2019 Sierra. The 5.3L and 6.2L engines feature stop/start technology and new Dynamic Fuel Management that enables the engine to operate on one to eight cylinders, depending on demand, to optimize power and efficiency. The new diesel builds on GMC’s expertise with Duramax turbo-diesels offered in Sierra HD and Canyon models. The available 6.2L and 3.0L engines are paired with a 10-speed automatic transmission. Sierra Denali features an exclusive Adaptive Ride Control suspension system designed to provide premium driving refinement with exceptional responsiveness. It employs sophisticated sensors to monitor road conditions and chassis responses in real time, enabling adjustments to active dampers every 2 milliseconds. Coming this fall The 2019 GMC Sierra Denali and SLT go on sale this fall. Additional details will be released closer to the start of production. View full article

GMC is taking its CarbonPro carbon-fiber bed into limited production in June for the 2019 model year and making it into its own edition. GMC announced the CarbonPro when the 2019 GMC Sierra Denali debuted back in March 2018. GMC says that at first, the CarbonPro edition will be available in limited numbers of Denali and AT4 models and will expand availability of the package in those trims for 2020. The CarbonPro bed is lighter than a steel bed by about 60 pounds, but has much stronger durability and scratch resistance. Carbon fiber is naturally corrosion resistant, making the GMC CarbonPro edition the most corrosion resistant bed in the industry. Additionally, the CarbonPro bed has best in class cargo volume, increasing the cargo capacity over the steel bed by 1 cubic foot. Tire indentations are in place at the front wall for motorcycles, and two additional tie downs are installed on the front wall. GMC tested the durability of the bed in extreme scenarios by dropping cinder blocks, 1800 lbs of gravel, and 450-pound water filled steel drums into the bed. A generator was used to test the high heat exposure durability by aiming the exhaust directly at the corner of the bed. GMC even drove a Snowmobile with a studded track onto the bed and then accelerated at full throttle resulting in only minimal scratching of the material. The CarbonPro bed comes with GMC's Multi-pro talegate The GMC Denali and AT4 Carbon Pro Editions go on sale this summer. View full article

The GMC Build and Price tool has let the details slip on the power ratings of the upcoming inline-6 diesel due to be released in the Sierra and Silverado in a few weeks. The 3.0 liter turbo diesel will produce 277 hp at 3,750 rpm and 460 lb-ft at a mere 1,500 rpm. The only transmission choice will be the 10-speed automatic. These numbers are SAE certified and verified by GM. The diesel motor will be available on LT and above trims on the Chevy and on all GMC trims except the base. These numbers make the GM six more powerful than Ford's V6 Powerstroke diesel which runs at 250 hp and 440 lb-ft of torque. The New Ram 1500 still hasn't gotten a diesel unit, but it will probably be the same rating as the 260 hp and 442 lb-ft of torque in the Jeep Gladiator. One area still unknown on the GM unit is fuel economy. The Ford F-150 Powerstroke is EPA estimated for 30 mpg highway/25 combined/22 city. The GM diesels 1500 trucks will be at dealerships this summer. Related: View full article

There is a growing number of automakers who are announcing plans to electrify their lineup, while others are considering it. GMC is the latter category according to a new report from CNBC. “Certainly, it’s something we’re considering," said Duncan Aldred, vice president of GMC when asked if there was the possibility of an electric Sierra. Aldred wouldn't say much more than that except mentioning that General Motors CEO Mary Barra has already made comments about "an all-electric future." It wouldn't be surprising if an all-electric Sierra sparks an all-electric Chevrolet Silverado since they are basically the same truck, allowing GM to take advantage of economies of scale and spreading the cost of development. But the cost of batteries is still a big drawback. Researchers at Boston Consulting Group say each individual battery cell generally cost $150 to $200. Aldred said that battery tech is still expensive "that makes it difficult to target mainstream segments, unless a carmaker like GM is willing to accept lower margins." But that's where GMC could take the lead as it is currently positioned as something more premium than its Silverado brethren, with such features as the Multi-Pro tailgate. Ford has already announced plans for an F-150 EV, and there is start-up automaker Rivian with the R1T that is expected to go into production in late 2020. Source: CNBC View full article

GMC is giving its off-road oriented Sierra AT4 some more performance with a recently announced package. Called the AT4 Off-Road Performance Package, it will add a 6.2L V8, performance air intake, cat-back performance exhaust system, and a set Goodyear Wrangler DuraTrac tires with 18-inch alloy wheels. The intake and exhaust add 15 horsepower and 9 pound-feet of torque over the stock 6.2L V8 - total output stands at 435 horsepower and 469 pound-feet of torque. The price tag for this option is $4,940 which may put some people off. You can buy most of the parts a la carte, but as The Truth About Cars notes, it will be slightly more expensive than buying the package. The AT4 is aimed at the likes of the Ram 1500 Rebel to give buyers an off-road ready truck. This includes a two-inch suspension lift, four-wheel drive with a two-speed transfer case; locking rear differentials, skid plates, Rancho off-road shocks, and hill descent control. The AT4 Off-Road Performance Package is available now. Source: GMC, The Truth About Cars Sierra AT4 Powers Up With New Off-Road Performance Package DETROIT — Defining the premium off-road segment, the 2019 GMC Sierra AT4 is now available with the all-new Off-Road Performance Package. The Off-Road Performance Package adds factory-installed performance upgrades that bring additional power and purpose to the Sierra AT4. “The 2019 GMC Sierra AT4 debuted all-new, purposeful technologies for the premium truck segment and the new Off-Road Performance Package takes it a step farther,” said Duncan Aldred, vice president of Global GMC. “It offers optimized performance, both on- and off-road.” The Sierra AT4 Off-Road Performance Package includes: 6.2L V-8 engine mated to 10-speed automatic transmission. 18-inch machined aluminum wheels with Goodyear Wrangler DuraTrac tires. Cat-Back Performance Exhaust System. Performance Air Intake. Thanks to these additions, the AT4 Off-Road Performance Package delivers up to 435 horsepower and 469 lb-ft of torque — increases of 15 horsepower and 9 lb-ft of torque over a Sierra equipped with a conventional 6.2L V-8 engine. The 6.2L is manufactured at GM’s Tonawanda engine plant in New York and was recently named a Wards 10 Best Engine for 2019. For 25 years WardsAuto editors have evaluated every all-new or significantly improved engine or electric propulsion system available in production vehicles in the U.S. Vehicles must have a starting MSRP less than $64,000. The editors score eligible vehicles on horsepower, torque, technology, observed fuel economy, relative competitiveness and noise characteristics. The Off-Road Performance Package’s upgrades build on the Sierra AT4’s distinctive formula of authentic off-road capability, innovative technology and bold design, along with GMC’s premium refinement. The Sierra AT4 was introduced earlier this year, and content includes: Standard 2-inch factory-installed suspension lift. Standard 4WD with a two-speed transfer case, locking rear differential and skid plates. Standard off-road-tuned Rancho monotube shock absorbers. Standard Hill Descent Control. Standard Traction Select System. Standard GMC exclusive, industry-first MultiPro Tailgate. Standard black chrome finish on the fog lamp bezels, fender surround and grille insert. Standard body-color grille surround, door handles and bumper. Standard exclusive athletic interior trim elements. Standard red vertical recovery hooks. Available segment-first Multi-Color Head-Up Display. Available segment-first Rear Camera Mirror1. Available GMC-exclusive, industry-first Carbon Fiber Pickup Box2. A full suite of advanced available safety features including Surround Vision, Lane Change Alert with Side Blind Zone Alert, Front Pedestrian Braking and Low Speed Forward Automatic Braking1. The Sierra AT4 Off-Road Performance Package has an MSRP (excludes tax) of $4,940 and is on sale now. View full article

General Motors made a big deal about a new 2.7L turbo-four that would be available on the 2019 Chevrolet Silverado and GMC Sierra 1500. This engine promises more power, better towing, and improved fuel economy when compared to the 4.3L V6 engine. But when the official fuel economy figures came out, the engine became somewhat less impressive. The EPA rates the 2.7L turbo-four at 20 City/23 Highway/21 Combined for the 2WD variant and 19/22/20 for the 4WD variant. That isn't a huge improvement on the V6s found in the Ford F-150 and Ram 1500. F-150 with 3.3L V6: 19/25/22 (2WD), 18/23/20 (4WD) F-150 with 2.7L EcoBoost V6: 20/26/22 (2WD), 19/24/21 (4WD) Ram 1500 with 3.6L V6: 20/25/22 (2WD), 19/24/21 (4WD) "If you're delivering on everything, and you're getting the same fuel economy, the question is, 'Why?' " explained Stephanie Brinley, principal automotive analyst at IHS Markit. Officials at GM say the EPA ratings don't tell the whole story on the new engine. Like a diesel engine, " fuel economy will be better in the real world than its predecessor and will at least match comparable V-6 models from competitors," they said. "I don't think we're done with the fuel economy piece yet," said Tim Herrick, executive chief engineer of GM's full-size trucks to Automotive News. "Don't look at the label. We're as good or better than them in every step." Source: Automotive News (Subscription Required) View full article

Aside from the turbo-four engine, the 3.0L Duramax diesel inline-six for the upcoming 2019 Chevrolet Silverado and GMC Sierra 1500 has us very intrigued. General Motors has been quiet on power figures and fuel economy for this engine since announcing this engine earlier in the year. But thanks to a crafty person who got some photographs off of GM Canada’s dealer site, we now have some figures. The photos were posted by TFL Truck and reveal the diesel engine produces 282 horsepower and 450 pound-feet of torque - 32 horsepower and 10 pound-feet more than the F-150's 3.0L PowerStroke diesel. GM also claims a highway fuel economy figure of 28 mpg - about two mpg less than the F-150. That 28 mpg figure gives us pause as Canada reports fuel economy figures very different - 'x' liters per 100 kilometers - not miles per gallon. Max towing is rated at 7,800 pounds. We'll see if those numbers pan out when the diesel becomes available sometime later this or early next year. Source: TFL Truck View full article

GMC seems to be following Chevrolet's idea of offering different versions of its trucks to suit different buyers. Case in point is the recently revealed 2019 Sierra 1500 Elevation. Starting with the double cab variant, GMC adds a combination of body-color and backed-out accents, along with a set of 20-inch wheels finished in black. Under the hood resides the recently unveiled turbocharged 2.7L four-cylinder producing 310 horsepower and 348 pound-feet of torque. Optional engines include the 5.3L V8 with 355 horsepower and the 3.0L turbodiesel inline-six. You will have the choice of two or four-wheel drive. GMC will also offer the X31 Off Road Package that brings Rancho off-road shock absorbers, locking rear differential, hill descent control, skid plates, a two-speed transfer case, and a heavy-duty air filter. The 2019 Sierra Elevation conveys a youthful, athletic presence that demonstrates GMC’s tailored approach. With inherent truck capabilities and functionality, Elevation is able to take you off the beaten path along with your gear while standing out from the pack,” said Rich Latek, GMC marketing director. The Elevation will be one of Sierra models available at launch later this fall. Source: GMC GMC Reaches New Heights with Next Gen 2019 Sierra Elevation Double-cab model boasts a bold and confident attitude with elevated capability DETROIT — The launch of the next generation Sierra lineup continues with the introduction of the new 2019 GMC Sierra Elevation. Adding to other recently revealed bold, powerful models of the Sierra, the Elevation makes a statement in design, capability and advanced connectivity. The Sierra Elevation, along with Denali, AT4 and SLT, is designed to meet the needs and preferences of discerning GMC customers. The next generation Sierras are built upon a prominent foundation of strong bodywork that incorporates chiseled fenders and a tall, powerful hood capped with a bigger and bolder grille than any Sierra prior. Elevation sets itself apart with distinct monochromatic door handles, bumpers and grille surround. The commanding design is amplified by black exterior accents, including the grille insert, tow hooks, side window trim and standard 20-inch aluminum wheels. Like other modern GMC designs, advanced lighting technology plays a key role in shaping the 2019 Sierra Elevation. New high-intensity LED headlamps that incorporate C-shaped "light blade" signature lighting elements, LED fog lamps and C-shaped LED elements within the taillights are all standard. “The 2019 Sierra Elevation conveys a youthful, athletic presence that demonstrates GMC’s tailored approach,” said Rich Latek, GMC marketing director. “With inherent truck capabilities and functionality, Elevation is able to take you off the beaten path along with your gear while standing out from the pack.” The Sierra Elevation is based off the double cab model and is offered with two- or four-wheel-drive configurations. The next generation double cab has nearly 3 inches of additional rear-seat legroom compared to the current model and best-in-class double cab front head- and legroom (max.). Elevated Capability The Sierra Elevation leverages innovative technology and smart engineering to enhance capability and elevate driver confidence. With the Traction Select System and the twist of a dial, the driver can choose from preset modes designed for distinct purposes or conditions. Selecting one of these modes adjusts Sierra’s transmission shift points, throttle mapping and other systems to optimize performance for the situation at hand. Tour mode, for instance, is ideal for everyday driving, while Terrain mode configures the Sierra for venturing off the beaten path. For those who frequently venture off-road, Sierra Elevation is available with the X31 Off Road package, which includes unique suspension tuning with Rancho shocks, locking rear differential, Hill Descent Control, protective underbody skidplates, heavy-duty air filter, dual exhaust system and a two-speed transfer case with low-range gearing topped off with all-terrain tires. If trailering a camper or other gear is part of your adventure, the 2019 Sierra Elevation was designed from square one with trailering in mind. The available ProGrade Trailering System incorporates a number of innovative features, including an advanced available Trailering App, designed to help take the guesswork out of connecting and towing a trailer. Purposeful Functionality The Sierra Elevation was engineered to get you and your gear — be it kayaks, camping, mountain bikes, motorcycles or beyond — where you need to go, building on the foundation of the best-in-class cargo volume standard with every all-new Sierra: 89.1 cubic feet on standard box models. Thanks to more tie-downs, enhanced cargo lighting and larger rear corner steps, the task of loading and securing gear is easier than ever. A 120V outlet in the rear supplies power to equipment needed for a day at the campsite or on the trails. Available accessory GearOn rails within the box allow for bike racks, kayak carriers and other accessories to be installed or adjusted quickly and easily. The rails’ integrated position makes cargo more accessible and frees up space in the rest of the box. Next Generation Performance The Sierra Elevation is available with a number of new engine and transmission configurations that deliver the perfect blend of power and capability. Standard on the 2019 Sierra Elevation is an all-new 2.7-liter turbocharged engine paired with an eight-speed automatic transmission that delivers 310 horsepower and 348 lb-ft of torque. The next generation 5.3-liter V-8 is also available on the Sierra Elevation, in conjunction with an eight-speed automatic transmission. This improved version of the 5.3-liter V-8 utilizes a new Dynamic Fuel Management system that enables the engine to operate on one to eight cylinders, depending on demand, to optimize power and efficiency. Early in 2019, the Sierra Elevation will also be offered with a new 3.0-liter turbo-diesel inline-six-cylinder engine, along with a 10-speed automatic transmission. Advanced Connectivity An 8-inch diagonal GMC Infotainment System that incorporates Android Auto and Apple CarPlay compatibility* is standard on the Sierra Elevation, along with a six-speaker audio system. A premium GMC Infotainment System that incorporates a higher resolution touchscreen, advanced personalization features, voice recognition functionality and available in-vehicle apps is optional, as is a 7-speaker Bose premium audio system. USB Type A and Type C ports for charging mobile devices are standard. The 2019 GMC Sierra Elevation will be available starting in the fall of 2018. View full article

It won't be too long before GMC reveals its counterpart to the brand new 2019 Chevrolet Silverado. Automotive News reporting that GMC will be holding an event on March 1st in Detroit to reveal the 2019 Sierra. Expectations are that the Sierra will be differentiated from its Silverado sibling. Previous spy shots seem to indicate this with a different front end treatment on the Sierra. There is talk that the Sierra will also get some changes for the interior. The 2019 Sierra specs will likely match up to the Silverado with a longer wheelbase, weighing up to 450 pounds less than the outgoing model, spacious cargo bed, and an available power tailgate. Six powertrain combinations, including a 3.0L Duramax turbodiesel inline-six, and 5.3 and 6.2L V8 engines. Source: Automotive News (Subscription Required) View full article