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Engine block heater issues force GM to recall 324,226 diesel heavy duty trucks

General Motors has issued a recall on 324,226 diesel heavy duty trucks that could be susceptible to short circuits, and consequently, potential fire. The recall affects several models of heavy duty Chevrolet Silverados and GMC Sierras with optional engine block heaters. GM is recalling seven different truck models spread across three years. The recall affects the 2017-2019 Chevrolet Silverado 2500HD, 2017-2019 Silverado 3500HD, 2019 Silverado 4500HD, 2019 Silverado 5500HD, and 2019 Silverado 6500HD, plus the 2017-2019 GMC Sierra 2500HD and 2017-2019 Sierra 3500HD. Specifically, it includes these models with the 6.6-liter Duramax diesel engines and the optional engine block heater. The recall technically deals not with the engine block heater itself, but the way it is connected. According to NHTSA campaign No. 19V328000, the engine block heater cord or the terminals that link the cord to the heater could short circuit. A short circuit could potentially damage engine components and result in a fire. According to The Detroit News, 19 fires have been reported but nobody has been injured. GM has yet to figure out a fix, and thus has not yet released a notification schedule for affected customers. If you believe your vehicle is part of the recall, contact GM customer service at 1-586-596-1733 and use reference number N182206310.

GM Ultium tech can scavenge heat from everywhere, even you

GM likes to give us tidbits about its Ultium platform from time to time, and today it’s telling us about the platformÂ’s ability to capture waste heat from the propulsion system. In addition to capturing from the propulsion system, it can also capture humidity from both inside and outside the vehicle and even from passengersÂ’ body heat. Yes, you, your family and/or your friends are a usable heat source as far as GM EVs are concerned. It then deploys the heat in an advantageous way. If at this point, youÂ’re screaming, "Heat pump!" youÂ’d be right. WeÂ’re talking about an elaborate heat pump system that GM is using for its Ultium-based vehicles. Every Ultium-based GM vehicle gets this system that is covered by 11 patents and four publications. The waste heat it collects is used in a number of ways, but its primary use is to heat the cabin quickly and efficiently. GM claims it can heat the cabin of its Ultium-based vehicles quicker than vehicles with traditional internal combustion engines. Plus, when put to use, GM claims that using the heat pump provides its EVs with up to 10% more range than theyÂ’d have without. Beyond heating the cabin, the heat pump is capable of putting waste heat to use by preheating the battery prior to charging so that you can charge quicker. The system can even cool the propulsion system in preparation for Watts to Freedom (WTF) launch control starts. GM says this was vital in helping the Hummer EV achieve its bonkers 0-60 mph time of about 3 seconds. “Having a ground-up EV architecture gives us the freedom to build in standard features like UltiumÂ’s energy recovery capabilities,” said Doug Parks, GM executive VP of global product development, purchasing and supply chain. “This helps us squeeze more efficiency, performance and overall customer benefit out of our EVs.” GM says itÂ’s been developing heat pump technology since the EV1 and its heat pump. This is the modern evolution of that technology, and GM says itÂ’s going to be implemented in every Ultium-based vehicle as a standard feature. Related video: Green Cadillac Chevrolet GM GMC Technology Electric Future Vehicles

2022 GMC Sierra gets overhauled interior, new Denali Ultimate and AT4X

GMC Sierra's 2022 update is here, boasting a ground-up interior redesign, an updated Super Cruise package with trailering support, and two new trims aimed at very different buyers. While the GMC Sierra's bones are undeniably good, its interior has really held it back from our full-throated support in recent years. The pricier trims of the refreshed 2022 model may well erase those shortcomings entirely.  Hot on the heels of its revamped platform mate, the 2022 Chevrolet Silverado, the new Sierra arrives with a similar suite of upgrades, plus a few items that will remain exclusive to the fancy-pants Sierra for now, like Enhanced Super Cruise with available automatic lane-change and trailering mode. As with the Silverado, the Sierra's 2.7-liter four-cylinder gets an upgraded block and internals, allowing for a higher torque output (420 pound-feet), which means it makes even more torque than the 5.3-liter V8. Diesel models also enjoy some chassis upgrades that allow for the fitment of GMC's Max Tow package. That allows a diesel Sierra 1500 4x2 to handle 13,200 pounds and the 4x4 model to tow up to 13,000 even.  Still, the 2022 Sierra's most noteworthy improvements are to be found inside, and what better way to showcase an upgraded interior but with a new, range-topping luxury trim? Say hello to the 2022 GMC Sierra Denali Ultimate.  This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings. 2022 GMC Sierra Denali Ultimate unveiled Denali represents a huge chunk of Sierra sales, and when your branding is based around upscale sophistication, you sure want to put your best foot forward at the top of the pricing structure. GMC wasn't quite there with the outgoing Sierra Denali, but the new Denali Ultimate may just be the ticket to one-upping the likes of the swanky Ram 1500 Limited.  This is the no-holds-barred, all-options-checked model that really makes GMC money. The 6.2L V8, 10-speed automatic and Super Cruise are standard on Denali Ultimate. All of the leather and wood elements visible here are real (seriously, you can touch them and everything). There's also a faux suede headliner, 16-way power-adjustable and massaging front seats, a 12-speaker Bose system and a 15-inch color HUD included.  GMC included several unique elements for Ultimate, including topographical maps and the latitude and longitude of Mount Denali formed into various interior trim pieces.