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2023 GMC Sierra Review: Upscale and off-road capable

Pros: Quiet and torque-rich Duramax diesel; premium interior; big touchscreen on most trims; great trailering tech Cons: Worse ride than most rivals; AT4X priced like a Raptor but doesn't go like a Raptor The 2023 GMC Sierra half-ton pickup is a slightly more upscale cousin of the Chevy Silverado, but didn’t always feel like it. After a refresh last year, the Sierra actually delivers on the upscale part, for the most part of the equation with a comfortable, high-quality interior and better technology in most trim levels. ItÂ’s massively configurable, with four available engines and five different cab/box combinations. ItÂ’s also quite capable off-road with that AT4, AT4X and the soon-to-arrive AT4X AEV Edition. WeÂ’re fond of the diversity of tech available in the Sierra, whether itÂ’s the Google-powered infotainment with large, easy-to-use screens, a clear head-up display, numerous camera feeds for trailering and off-roading, or GMÂ’s Super Cruise advanced driver assistance system. We just wish that last one was available on more than just the Denali trims. If youÂ’re looking for a truck whose capability is matched by its livability, the GMC Sierra is worthy of your consideration, though you can find better ride quality in other brands (we enjoyed the ride in the AT4X, however). And while the AT4X has some true off-road capability, if youÂ’re looking for a Baja-blasting supertruck, though, youÂ’ll find better with the Ford F-150 Raptor and Ram Rebel TRX. If you donÂ’t need the nicer interior or extra tech, you might find something more matching your needs and pocketbook with the Ford F-150, Ram 1500 or even GMÂ’s own Chevy Silverado. ItÂ’s hard to go wrong with any of those nameplates. Interior & Technology   |   Passenger & Cargo Space   |   Performance & Fuel Economy What it's like to drive   |   Pricing & Trim Levels   |   Crash Ratings & Safety Features What's new for 2023? After some pleasant updates for the 2022 model year, the changes for 2023 are relatively minor. The price went up, unfortunately. The available 3.0-liter Duramax turbodiesel has been revised for more power and efficiency. Later in the year, the AT4X AEV Edition will add even more off-road capability to this luxurious pickup. There are also some new exterior colors available, a new Graphite Edition for the Pro trim, and new 22-inch ultra-bright wheels for the Denali Ultimate.

2015 Chevy Silverado, GMC Sierra can tow up to 12,000 pounds

Think back to the launch of the 2014 Chevrolet Silverado. At the time, General Motors happily trumpeted that its fullsize pickup could tow up to 11,500 pounds when properly equipped - impressive stuff, no doubt. But now, revised tow rating practices have been put into place, called SAE J2807. And with these new methods of testing, GM can now officially rate both the Silverado and its GMC Sierra twin as being able to tow up to 12,000 pounds.
Of course, not all Silverado and Sierra models are capable of this feat. In fact, because of SAE J2807, most of the truck models have actually had decreases in tow ratings from the 2014 to 2015 model year. For example, a 2014 Silverado Crew Cab with the 5.3-liter V8, 5.7-foot box and 3.73 rear axle was rated at 11,200 pounds in 2014, but has since been reduced to 10,800 in 2015. Same goes for the Sierra.
But for 2015, both the Silverado and Sierra can be had with a more powerful 6.2-liter V8, as well as a Max Trailering Package that includes a 9.76-inch rear axle, heavy-duty rear springs, revised shock tuning, improved cooling and a new trailer brake controller. There are also four- and seven-pin, bumper-mounted connectors, a trailer hitch (duh), and a G80 locking rear differential. This configuration, with either model, is the only way you can actually tow 12,000 pounds.

GM 6.2L EcoTec V8 rated at 21 mpg by the EPA

General Motors is already laying claim to best-in-class power for its new 6.2-liter V8 that will be offered in the 2014 Chevy Silverado and GMC Sierra this fall, and now it has released fuel economy numbers for the big engine. Available as an option on the Silverado LTZ and High Country (shown above) models as well as the the Sierra SLT and Denali trims, the 6.2L EcoTec3 V8 will return 15 miles per gallon in the city and 21 mpg on the highway on rear-wheel-drive trucks; these numbers drop by one mpg each on four-wheel-drive models.
These estimates are in addition to the engine's 420 horsepower, 460 pound-feet of torque and max trailering capacity of 12,000 pounds, and considering all that power it's not terribly far away from the fuel economy of GM's equally new 4.3-liter V6 and its rating of 18 mpg city and 24 mpg highway. This announcement comes just days after a report indicated that GM is unable to keep up with the demand of the 5.3-liter V8 in the fullsize Chevy and GMC trucks due to supplier issues. GM's official press release for the 6.2-liter V8's fuel economy is posted below.