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GMC

GMC is the hardest working of the General Motors brands with a lineup comprised entirely of trucks and sport utility vehicles but thanks to a long list of standard and available features, the GMC lineup offers as much luxury as it does capability.

By Mary Conway on
The new HUMMER Icon 25 models will come in Icon yellow, a throwback to the old HUMMER H2 yellow models. The limited editions will be available as either an SUV or pickup.
By Denis Flierl on
A GMC dealer told a 2026 Sierra Denali 5.3L owner "no codes means no problem" after two sudden engine stalls. Here is why this dangerous issue points to a hidden CAN-Bus network crash rather than a hardware defect. What GMC owners need to know.
By Noah Washington on
A Sierra EV Owner first tow put the energy use, charging access, and trailering software into one trip. The truck made the boat feel easy, and the covered charger accommodated the combination.
By Denis Flierl on
A Ford F-150 defector sparked a massive debate by rejecting his wife’s favorite Toyota Tundra for a 2026 GMC Sierra Duramax. Here is my mechanical analysis of why raw diesel torque won the day despite a critical GM cabin ergonomics issue.
By Denis Flierl on
Thinking an AFM/DFM disabler will save your 2025 Chevy Silverado 5.3L from lifter collapse? A 30-year mechanic breaks down why plugging a software module into your OBD-II port cannot fix GM’s inherent valve train hardware vulnerabilities.
By Armen Hareyan on
Modern GMC Sierra and Chevrolet Silverado trucks are so smart that mud and aftermarket lights can fool their safety systems.
By Denis Flierl on
A GMC Sierra owner traded his 2016 V8 for a 2026 TurboMax Elevation, noting he misses the V8 but the 2.7L engine isn't bad. Mechanics analyze how the TurboMax's 430 lb-ft spec-sheet torque matches real-world driving compared to GM's classic small-block.
By Noah Washington on
An EVgo transaction screen showed six fast-charging sessions totaling $453.64. The owner says his Florida-to-Michigan run in a 2026 GMC Sierra EV AT4 made him wish he had taken his Tesla.
By Noah Washington on
A GMC Sierra EV owner switched to Pirelli Scorpion XTM AT 285/65R20 tires, drove Atlanta to Charlotte at 75 mph, and saw 2.1 mi/kWh one way and 1.9 mi/kWh coming back. The range loss may be smaller than the tread suggests.
By Noah Washington on
The 2024 GMC Sierra EV Denali Edition 1 felt more planted, more comfortable, quicker, and stayed level while towing a Nautique G23. The catch was the truck’s estimate: 180 to 200 miles of full-charge towing range.
By Denis Flierl on
A four-time Chevy owner abandons a new 2025 Ram 1500 Hurricane after severe quality issues and dealer warranty visits, returning to GM with a 2026 GMC Sierra picked up for $10,000 under MSRP. Here is the technical breakdown of the truck swap.
By Noah Washington on
The owner averaged 1.2 to 1.3 mi/kWh on a 200-mile mountain tow with a 21-foot camper, a raised solar array, and one conservative charging stop. His takeaway was simple: plan 150-mile legs.
By Noah Washington on
A 2025 GMC Sierra 1500 3.0L Duramax owner says the dealer first blamed bad fuel, but he pulled the tank and filter himself and found no evidence of it. The truck is now back at the dealer after a trail of engine, oil, heat, fuel, and emissions problems.
By Noah Washington on
A GMC Sierra EV Denali owner expected his 2022 Ford F-250 Power Stroke to win a 20-to-60 mph trailer pull. The electric truck finished in about six seconds. The diesel took about 10.5.
By Armen Hareyan on
Historically Chevy Silverado equaled a Chevrolet truck. Sierra equaled a nicer Silverado. That formula is changing and the new 2027 GMC Sierra is getting its own identity.
By Aram Krajekian on
Luxury and power are what buyers expect from a Yukon Denali Ultimate, but one owner’s experience shows how quickly that expectation can shift in the middle of a trip.
By Noah Washington on
A pair of owner reports shows how speed, cargo placement, and the shape presented to the wind can overwhelm the number printed on a scale.
By Armen Hareyan on
The most convincing safety testimonial isn't a crash test video. It's an owner who immediately buys the same vehicle again after a real-world crash, just like the owner of this 2026 GMC Sierra EV is willing to do and explains why.
By Noah Washington on
Grand Design advertised a 604-pound dry hitch weight for the 32-foot Imagine 2800BH. Loaded for travel, it put roughly 1,200 pounds on the hitch and pushed the owner’s Toyota Tundra about 400 pounds beyond its GVWR, leading him to replace it.
By Noah Washington on
After years with a Tesla Model X and a Ford F-150 Lightning Extended Range, a veteran electric camper has moved into GMC’s giant-battery pickup. His garage traces the progress of EV towing better than any launch event.
By Armen Hareyan on
GMC's first teaser of the 2027 Sierra hints at an unexpected blend of EV-inspired design and traditional V8 truck engineering, raising questions about how far the brand is willing to redefine its flagship pickup.
By Armen Hareyan on
The first image of the 2027 GMC Sierra 1500 reveals more than a new design, hinting at a strategy that could further separate it from Chevrolet's Silverado.
By Noah Washington on
A 2025 GMC Sierra EV Denali Max Range owner was towing on I-81 in Virginia when the truck fell from 10 percent to zero, entered turtle mode, and died just short of a charger.
By Tim Healey on
Car dealerships sometimes sue the brand that they represent. There are varying reasons why, and a GMC dealership is suing GMC for a very interesting reason.
By Noah Washington on
A Sierra EV Denali Edition 1 owner says repeated high-voltage battery alerts led to a dealer repair, same-day warning lights, failed charging, and regenerative braking that dropped to almost nothing.
By Noah Washington on
A GMC Sierra EV owner swapped the factory 24-inch street setup for Hummer EV-style 18s and Goodyear Wrangler Territory MT LT305/70R18 tires.
By Aram Krajekian on
A drive home from an exciting purchase turned into an immediate reality check when a low mileage GMC Sierra 1500 suddenly lost power on the highway, raising questions about what might have been missed before the sale.
By Denis Flierl on
Torque News tracker by Denis Flierl exposes why partial dealership lifter repairs on Chevy Silverado V8 engines trigger oil starvation and total engine lockup. Learn why Colorado mountain driving accelerates DFM failures and how to protect your truck.
By Armen Hareyan on
GM is betting that a new Gen 6 V8, tighter quality controls, and greater manufacturing oversight can help the 2027 Silverado and Sierra win back confidence from truck buyers who increasingly view reliability as the ultimate feature.
By Noah Washington on
A GMC Sierra EV owner replaced the factory 24-inch setup with 20x9 Almax wheels and Pirelli 285/65R20 EV-rated tires. The ride barely changed, the noise got worse, and the early efficiency numbers were strange enough to deserve a closer look.