2027 GMC Sierra 1500: All-New Fifth Generation
The GMC Sierra 1500 enters a new generation for '27 with changes that go well beyond a fresh face. GMC redesigns this full-size pickup with new V8 engines, an overhauled cabin, and considerably more tech while keeping the range broad enough to cover everything from work trucks to luxury and off-road models. Here's what you can expect from the fifth-generation GMC Sierra.
Key Takeaways
- The engine lineup includes a turbo four-cylinder, two new V8s, and a 3.0-liter turbodiesel.
- The Denali Ultimate features five displays, Super Cruise, and a 16-speaker Bose audio system.
- The Sierra 1500's lineup starts at $40,000 as of August 2026.
What Engine Lineup Can You Find in the Sierra 1500?
The 2027 Sierra offers four engine choices. The previous gen's 5.3- and 6.2-liter V8s are gone, replaced by new 5.7- and 6.6-liter engines. The turbocharged 2.7-liter four-cylinder continues as the base engine, while a 3.0-liter turbodiesel remains available.
Every engine pairs with a 10-speed automatic. Rear- and four-wheel drive are available. Car and Driver reports that GMC pegs the 6.6-liter V8 as delivering the best-in-class power, although horsepower and torque figures are not available as of this writing.
How Many Versions of the Sierra Are There?
The lineup starts with the work-oriented Pro before moving up the lineup to the Elevation, AT4, AT4X, Denali, and Denali Ultimate. That wide range of choices gives buyers several ways to configure the Sierra depending on whether work, off-road capability, comfort, or luxury is the priority.
Bed choices include a 5-foot-10-inch short bed, 6-foot-7-inch standard bed, and 8-foot-2-inch long bed, with availability depending on cab and trim.
What Makes the New Sierra’s Interior Different?
The redesigned cabin is one of the biggest departures from the previous Sierra, particularly when you reach the Denali Ultimate. GMC equips its flagship trim with five displays, beginning with a customizable 12.2-inch digital gauge cluster. A 16.3-inch center touchscreen moves vertically to reveal a hidden storage compartment behind it. The passenger gets an 11.5-inch display with a retractable cover, while a 15-inch head-up display and 8.5-inch digital rearview mirror add even more information within the driver's view.
The Denali Ultimate also includes a three-year Super Cruise subscription and a 16-speaker Bose audio system. GMC has moved the climate controls into the center touchscreen rather than retaining separate physical controls.
On the current Sierra 1500, rear seatback storage is available on the Elevation through either the Cloth Rear Seat with Storage Package or the Leather Package, while it comes standard on the SLT, AT4, AT4X, Denali, and Denali Ultimate. That feature may disappear for 2027.
According to GM Authority, images of the redesigned Sierra show GMC’s AT4, AT4X, and Denali without the split rear seatback cushions that contain the storage compartments on the current truck. GMC has described the new Sierra as having a “reimagined” interior but hasn’t confirmed whether the seatback storage has officially been eliminated.
How Is the AT4X Equipped for the Trail?
The AT4X builds on the off-road-oriented AT4 with more specialized hardware. Multimatic shocks help control the truck over uneven terrain, while a 2-inch suspension lift increases ground clearance. GMC also equips the AT4X with 35-inch tires and tougher exterior styling that helps distinguish it from the rest of the Sierra lineup.
How Much Does the 2027 GMC Sierra 1500 Cost?
The Pro starts at approximately $40,000, while a Denali Ultimate can climb beyond $90,000.
Come See the Redesigned Sierra 1500
The 2027 Sierra 1500 gives GMC's full-size pickup a fresh start, with changes to its powertrains, interior, technology, and off-road offerings. Come to Reliable Buick GMC to see the redesigned Sierra for yourself, explore the different trims, and get behind the wheel for a test drive.
