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GMC Acadia goes big again? Spy photos show next-gen prototype

GMC is testing what looks a lot like a new full-size SUV, signaling the likelihood that it will return to full-size segment after the current generation has run its course. GM downsized the Acadia for the 2017 redesign, carving nearly 10 inches off its length and 3 inches from its girth. For the next generation, it appears that script will be aggressively flipped.  The hierarchy of GM's unibody family SUVs was already a bit wonky before the Acadia's 2017 redesign, and continues to be now. While it would be logical for the Chevrolet Traverse, GMC Acadia, Buick Enclave and Cadillac XT6 — all three-row crossovers — to be different skins on the same fundamental chassis, that's not actually the case. The Acadia is a full foot shorter than either the Traverse or Enclave, with the XT6 falling in between. Based on these photos, that will no longer be the case when the new GMC Acadia debuts. Since the current one went on sale in 2016 as a 2017 model, it's about due for a replacement.  We can't see much beyond basic proportions here, but those tell a clear story. It's pretty obvious that the hood on the prototype is wider and sits higher than on the current car, with perhaps less slope to the now-wider nose. We can also see the faintest impressions of creasing on the flanks, likely leading to the same broad, angular hip treatment present on the current car. Viewed side-by-side, we can see a little more front and rear overhang. There's no obvious hint of substantially longer wheelbase here (the rear doors line up almost perfectly), so we're probably looking at something that is wider but not necessarily much longer.  In any event, we shouldn't have to wait too long to find out exactly what GM has in store for its "Pro" brand.  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.

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: