The GMC Sierra 1500 gets a ground-up overhaul for '27, according to Edmunds, with new styling, a redesigned cabin, more tech, and even new engines. Although it continues to share its foundation with the Silverado 1500, GMC has clearly put more effort here. Let's break down the details of this half-ton pickup.
Key Takeaways:
- Four engines are planned at launch, including new 5.7-liter and 6.6-liter V8s.
- The redesigned interior introduces significantly more tech, especially in the Denali Ultimate.
- GMC plans to put the 2027 Sierra 1500 on sale before the end of the year.
Which Engines Power the 2027 Sierra 1500?
GMC plans to launch the new Sierra with four engine choices. The turbocharged 2.7-liter four-cylinder will now be the base engine, followed by new 5.7-liter and 6.6-liter V8s and a 3.0-liter inline-six turbodiesel. Every engine pairs with a 10-speed automatic and rear- and four-wheel drive.
GMC says the new 6.6-liter V8 will deliver best-in-class power, although horsepower and torque figures haven't been released yet. Towing capacity, payload ratings, and fuel economy figures are not available as of August 2026.
What Models Are Available for 2027?
The 2027 Sierra lineup starts with the Pro and progresses through Elevation, AT4, AT4X, Denali, and Denali Ultimate. The Sierra can be configured as a regular cab, double cab, or crew cab, depending on the model. Current bed lengths include a 5-foot-10-inch short bed, a 6-foot-7-inch standard bed, and an 8-foot-2-inch long bed. We'll have to wait for GMC to confirm which combinations will be available.
How Much Tech Is Inside the New Sierra?
The biggest differences between the Sierra and Silverado become apparent inside, particularly in the Denali Ultimate. GMC packs the flagship model with five displays, beginning with a customizable 12.2-inch digital gauge cluster.
A 16.3-inch center touchscreen can move vertically to uncover a storage compartment hidden behind it. The front passenger gets a separate 11.5-inch display with a retractable cover that conceals part of the screen when it's not being used. A 15-inch head-up display and 8.5-inch digital rearview mirror complete the setup.
Denali Ultimate buyers also get a three-year Super Cruise subscription and a 16-speaker Bose audio system. One notable change is the relocation of climate functions to the center touchscreen rather than dedicated physical controls.
What Does the Sierra AT4X Offer Off-Road?
The AT4X takes the Sierra's off-road capability beyond the regular AT4. Multimatic shock absorbers help manage rough terrain, while a 2-inch suspension lift provides additional clearance. GMC also fits the AT4X with 35-inch tires and a more aggressive exterior.
When Will the 2027 GMC Sierra 1500 Go on Sale?
GMC plans to have the redesigned Sierra 1500 on the road before the end of 2026, although an exact release date hasn't been announced.
Pricing is another detail we're waiting on. The entry-level Pro should start above $40,000, while a fully equipped Denali Ultimate could easily climb beyond $90,000 before options.
Is the Redesigned Sierra 1500 Worth Waiting For?
That's a resounding yes! The 2027 Sierra 1500 starts a new chapter for GMC's popular full-size pickup. Buyers won't have to wait much longer to see it in dealerships, so get ready to get behind the wheel! Here at Reliable Buick GMC in Roseville, we will help you find the perfect 2027 GMC Sierra 1500!