V8 engines boast strong power and fuel economy; easy-to-use and abundant electronic features; quiet and comfortable cabin; strong crash scores
Not quite as spacious as rival trucks; 8-speed automatic restricted to top trim levels; standard 6-speed isn't ideal for towing
Base model Sierras get some extra features for 2018, including a 7-in color touchscreen interface, a 6-speaker sound system (up from 4 speakers) and a backup camera. See the 2018 GMC Sierra 1500 models for sale near you
We think the SLT is the best choice given its 8-speed transmission and greater selection of desirable features. If you're going to keep your truck for a long time, you'll be happy you got as many gizmos and luxuries as possible. And sure, it costs more, but full-size trucks are so heavily discounted that its price is likely to be far more palatable than its MSRP would suggest.
Like all full-size pickups (and its Silverado sibling), the Sierra comes with a wide array of choices ranging from bed sizes to cab preference, drivetrain, engine and trim level. We've simplified things and organized the truck's features by trim level, but choosing the right Sierra for you will likely involve more than simply picking a trim.
Standard equipment on the base-level Sierra ($29,000) includes steel wheels, xenon headlights, LED running/accent lighting, power locks, cruise control, a backup camera, air conditioning, a 3-person front bench seat, a 7-in touchscreen and a 6-speaker AM/FM sound system with a USB port and an auxiliary audio jack. Some of the more basic extras found on the above trim (power windows, keyless entry) are available as options.
Next up is the SLE ($35,700), which adds alloy wheels, rear privacy glass, LED bed lighting, an EZ-lift tailgate, keyless entry, power windows, a leather-wrapped steering wheel, OnStar emergency communications, onboard 4G LTE Wi-Fi, Bluetooth, HD and satellite radios, a CD player and an 8-in, upgraded touchscreen.
Next up is the Sierra SLT ($42,800), which is only offered as a double cab or crew cab pickup. It adds foglights, heated power-folding mirrors, remote ignition, leather upholstery, dual-zone automatic climate control, heated power front seats, power-adjustable pedals and a tilt-telescopic steering wheel.
Topping the Sierra lineup is the Denali ($52,900), which only comes in crew cab form and includes the pickup's 6.2-liter V8 engine as standard equipment. The Denali also includes special interior and exterior trim, an exclusive magnetically controlled suspension, 20-in wheels and most of the luxuries that are optional on the SLT. These include forward-collision warning and low-speed automatic braking, lane-keep assistance, automatic high beams, side assist steps, front bucket seats, a heated steering wheel, wireless smartphone charging, a navigation system, Apple CarPlay, Android Auto and a Bose sound system.
The SLE and SLT can be equipped with the Elevation Edition package that adds special styling. The SLT-only All-Terrain package includes a variety of off-road-ready mechanical improvements and styling flourishes. The SLT and Denali can be equipped with a rear seat entertainment system that features a 9.2-in display and a Blu-Ray player.
|Basic||3 Years/36,000 Miles|
|Drivetrain||5 Years/60,000 Miles Qualified Fleet Purchases|
|Corrosion||3 Years/36,000 Miles|
|Rust-Through||6 Years/100,000 Miles|
|Roadside Assistance||5 Years/60,000 Miles Qualified Fleet Purchases|
|Maintenance||2 Years/24,000 Miles 2 Visits|
2018 Chevrolet Silverado -- It may seem obvious, but you'll probably want to check out the Silverado if you're also interested in the Sierra. These two trucks are mechanical twins, and you might find that the Chevy offers a better deal than the GMC, or vice versa.
2018 Ford F-150 -- The Ford F-150 provides close competition to the Sierra and Silverado, boasting excellent fuel economy, high-strength towing and payload capacities and a heavily modernized interior.
2018 RAM 1500 -- The RAM 1500 offers segment-exclusive features like its stout but smooth-riding coil spring rear suspension and available diesel engine. Its Rebel model can also tackle serious terrain. There's also an all-new Ram coming for 2019.