2024 Gmc Sierra 1500 Denali on 2040-cars

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GM will no longer remove parts from trucks to calculate curb weights

Following last week's mild uproar after it was discovered that Ford and General Motors were removing some optional parts from their pickups to lower the curb weight and consequently increase the maximum payload, GM has come out and committed to a base curb weight for its upcoming Chevrolet Colorado and GMC Canyon compact trucks (although it has yet to publish them) and its current Silverado and Sierra. The company will do the same for its heavy duty offerings, although those numbers have not been finalized yet.
"This will make our curb weight and payload specs more consistent with those of most other truck makers, making it easier for customers to compare vehicles," GM spokesman Tom Wilkinson told Autoblog in an emailed statement.
As GM notes - and as every manufacturer has noted since this story broke - customers still shouldn't take max payload ratings as gospel. Instead, they should refer to their truck's Tire and Load Label, like the one shown at the inset, which will offer detailed information on max payload, specific to their truck.

New recall issued in 2019 Chevy Silverado and GMC Sierra brake software saga

General Motors (GM) has issued a new recall for select 2019 Chevy Silverado 1500 and GMC Sierra 1500 pickup trucks that aims to resolve a faulty fix for a previous recall. According to National Highway Traffic Safety Administration (NHTSA) campaign No. 20V055000, a software update for the Electronic Brake Control Module (EBCM) could cause the electronic brake assist to be disabled.  The NHTSA first launched a recall for 463,995 Silverados, Sierras, and Cadillac CT6es on December 12, 2019 due to a software issue in the electronic brake control module (EBCM) that could disable the electronic stability control (ESC) and anti-lock braking system (ABS). As a response and resolution to that recall, GM began to reprogram the software in affected vehicles. GM later learned that the fix was creating a different problem. The installed software had its own error that was disabling the electronic brake assist. If customers see “Service Brake Assist” or “Service ECS" diagnostic warnings, they should park the vehicle and have it towed to a dealership, GM warns. While GM was going through the process of testing, pinpointing the issue, determining action and working with the NHTSA, safety experts have criticized Chevrolet and GMC for not reacting promptly and appropriately.  According to the recall, 148,055 are now affected, all of which do not meet the standards of Federal Motor Vehicle Safety Standard (FMVSS) number 126, "Electronic Stability Control" and 135, "Light Vehicle Brake Systems." To fix the braking issue, GM will once again reprogram the software. GM began notifying owners of the recall on February 10, 2020. Related Video:

GMC Sierra EV AT4, Chevy Silverado EV Trail Boss caught in spy photos

We've known for a while now that GMC and Chevy have been working on AT4 and Trail Boss versions of their respective Sierra EV and Silverado EV pickup trucks. But we're getting our best look yet at them with these spy photos. They give us a better idea of what body changes there will be, as well as a close-up of the tires, giving us their size and type. Some basics of off-road trim levels are obvious to spot. Both trucks feature bright red recovery hooks up front. But beyond that, there isn't much different from the outside of either truck compared to the base examples of each. The front bumpers are basically the same profile as the base bumpers, with the exception of the recovery hooks. The Silverado has natural black plastic fender flares, whereas the GMC has body color examples with integrated marker lights. They both get the same standard side steps, and the rear bumpers also appear unchanged. Each of these is equipped with the MultiPro/Multi-Flex tailgate. Chevrolet Silverado EV Trail Boss prototype View 14 Photos Really the biggest change appears to be in the wheels and tires. Each of them have unique designs, but they have the same dimensions. They're 18-inch wheels with 285/75R18 tires. That comes out to just shy of 35 inches in diameter, a good size of tire for an off-roader — and note how it doesn't even look all that large on such big trucks. Said tires are Goodyear Wrangler Territory AT all-terrains. The gas-powered trucks come with slightly narrower (275) mud-terrain versions as standard. Both of these trucks should start somewhere below the range-topping first edition models the two brands are currently marketing to the public, which hover between $95,000 and $110,000 depending on specification. The Silverado WT does start at just under $80,000, and we would expect the Trail Boss and the Sierra EV AT4 to come in somewhere above that, possibly between $85,000 and $90,000. Specifications are a mystery. It seems likely that at least the Silverado will get the WT's dual motors with 510 horsepower and 615 pound-feet of torque. The GMC could potentially get the more powerful motors making 754 horsepower and 785 pound-feet of torque as a way to differentiate itself, though this is speculation. The 204-kWh battery pack is probable, though there are rumors that at least GMC is going to start offering a smaller, more affordable 170-kWh pack that could be an option.