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Hummer EV range listed at 334 miles in MyChevrolet app

Forums of late have been cracking for interesting news, the Hummer Chat forum next in line to keep us intrigued. When member BahamaTodd updated his MyChevrolet app to version 5.7.0, he clicked through to the Energy Assist page and found three GM electric vehicles listed, plus their estimated range figures on a 100% charge. One was the 2022 Chevrolet Bolt, rated for 259 miles, the second was the 2022 Chevy Bolt EUV, rated for 247 miles. The third was an unexpected entry, being the 2022 GMC Hummer EV pickup, listed as able to go 334 miles on a full charge. When BahamaTodd clicked on the Hummer, a map appeared with a dotted line outlining the entire geographical area available to him based on his current location. The figures for both Bolts are the official EPA estimates. The mileage figure for the Hummer is a mystery, as is why it's popped up here in the MyChevrolet app instead of the MyGMC app. The EPA hasn't certified the 2022 Hummer yet, so that's not the source. On the other hand, a little more than a week ago, GM said the Hummer EV could go 350 miles or more based on the automaker's estimates. We assumed GM was referring to the Hummer Edition 1, the sold-out launch model which will be the only trim produced for the 2022 model year, fitted with three electric motors making a combined 1,000 horsepower. The first and safest assumption is that the app data is placeholder information, not intended to be spread on the Internet and dissected. If it does apply to a Hummer EV, it could denote a specific trim or options. The Edition 1 will be available with street tires. It's perfectly reasonable to believe the chunky, 35-inch knobblies that shown in all the press materials could eat up 16 miles or so of range, about a 4.8% loss. Or GM's range estimate could have been meant for one of the future Hummer EV variants, like the slightly less-powerful tri-motor EV3X with 800 hp, the 625-hp dual-motor EV2X, and the base, 625-hp dual-motor EV2. With pre-production of the Edition 1 slated to begin at GM's Factory Zero any day now, answers shouldn't be long in coming.  Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

Specialty Vehicle Engineering's 750-horsepower GMC Canyon fully revealed

GMC's celebrated Syclone will turn 30 in early 2021, but nothing suggests the company will mark the occasion by releasing a modern interpretation of the pickup. New Jersey-based tuner Specialty Vehicle Engineering (SVE) is taking the matter into its own hands by building a limited number of GMC Canyon trucks with Hellcat-like power. Although the original Syclone received a turbocharged V6, the 2021 model gains a 5.3-liter V8 normally found in bigger vehicles, including the Sierra and Yukon. SVE rebuilt it with forged aluminum pistons, forged steel connecting rods, high-lift valve springs, a custom crankshaft and upgraded fuel injectors among other aftermarket parts. It also added a supercharger to raise the eight's output to 750 horsepower and 600 pound-feet of torque. Power flows to the four wheels via a strengthened 8-speed automatic transmission and a permanent all-wheel-drive system. For context, the first Syclone gave the Chevrolet Corvette a run for its money with a fuel-injected, 4.3-liter V6 turbocharged to 280 horsepower and 360 pound-feet of torque. These numbers were spectacular in the early 1990s since the Sonoma that Syclone was based on shipped with the 105-horse Iron Duke four-cylinder as standard. Even compared with the Sonoma GT that got a naturally aspirated 4.3-liter V6 with 195 horsepower and 260 pound-feet of torque, the Syclone was impressive. SVE installed six-pistons front calipers that clamp 13.6-inch slotted rotors, and it kept the factory brakes out back. It also lowered the suspension by two inches in the front and five inches in the back, upgraded the shocks, and added a heavy-duty rear sway bar. These modifications help drivers make the most of the extra power, but SVE hasn't published performance specifications (like the truck's zero-to-60-mph time) yet. Surprisingly, the eight-cylinder weighs almost the same as the V6 it replaces so the engine swap doesn't affect weight distribution. Visually, the Syclone can't be mistaken for a run-of-the-mill Canyon. It wears a deep front bumper, has cladding over the rocker panels and rides on 20-inch alloys. Edition-specific emblems round out the look, and the list of options includes a body-colored grille as well as a folding tonneau cover. SVE's images show a truck painted black, which was the only color offered on the 1991 model, but it's available in any factory hue. Inside, the modern-day Syclone gains special floor mats and a numbered plaque on the dashboard. Leather is optional.

GM recalls nearly 340,000 large SUVs to fix daytime running lights

General Motors has initiated a recall campaign for more than 338,000 of its large SUVs to address a potential defect in the onboard computer software that controls the daytime running lights. In some cases, the DRLs may remain on even when the headlights are enabled, which creates additional glare for oncoming drivers at night and fails to comply with federal regulations for headlight performance.  "GM determined that the body control module (BCM) software in these vehicles, under a combination of certain pre-conditions, may fail to deactivate the DRLs when the headlamps are on," GM's recall report said. "A regulatory assessment was conducted to evaluate whether the condition presented a potential noncompliance with the DRL activation requirements in S7.10.5, Table I-a. of FMVSS 108. On October 27, 2022, GM’s Safety Field Action Decision Authority (SFADA) decided to conduct a recall for potential noncompliance with this standard." GM says the recall covers the 2021 model year GMC Yukon and Yukon XL, 2021 Chevrolet Tahoe and Suburban, and 2021 Cadillac Escalade and Escalade ESV. The company says all models produced within that operating window include the improperly programmed body control module, meaning all vehicles within the recall population may exhibit the problem. The issue was discovered by a GM engineer during validation testing in August, prompting a deeper investigation and eventually leading to the recall itself.   The module's software can be updated by GM dealers, so it should be a quick fix for customers. Notifications will be mailed to owners in December.  Related video: Recalls Cadillac Chevrolet GMC Ownership Safety SUV Luxury