The 2027 Sierra 1500 AT4 gets the new 5.7-liter V8 as standard. Photo: GMC.
The short version. The 2027 GMC Sierra 1500 is an all-new truck that reaches dealers before the end of 2026. It gets two new V8s (a 402-hp 5.7-liter and a 481-hp 6.6-liter), a stronger 2.7-liter turbo four, a carried-over 3.0-liter diesel, a 16.3-inch touchscreen on every trim, and Apple CarPlay and Android Auto back alongside GM's own software. There is no hybrid. The SLE and SLT trims are gone, per KBB. GMC has priced crew cab 4WD trucks so far: $51,295 for the Pro to $87,895 for the Denali Ultimate, including a $2,795 destination charge.
This page is about the gas and diesel half-ton Sierra 1500, not the electric Sierra EV or the heavy-duty Sierra HD. It collects what GMC announced, what the first hands-on looks found and what car podcasts said after the reveal, and notes where they disagree. Nobody outside GM has driven one on the road yet, so this page will change. Last reviewed October 24, 2026. If you see an error, email us.
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What changed for 2027?
GMC calls it the "next-generation" Sierra 1500. It revealed the truck on June 25, 2026, nine days after the Chevrolet Silverado 1500 it shares its engines with, and published full specifications and prices on September 22, per GMC's reveal and GMC's specifications release. Unless noted, everything below is from those two releases.
New V8s. A 5.7-liter replaces the 355-hp 5.3, and a 6.6-liter replaces the 420-hp 6.2, per Kelley Blue Book. Both are GM's new sixth-generation Small Block V8s, with combined direct and port fuel injection. (The "sixth generation" is the engine's, not the truck's.)
A stronger four-cylinder. The 2.7-liter TurboMax gains 40 hp and 25 lb-ft. The 3.0-liter Duramax diesel carries over. Every engine now uses a 10-speed automatic.
Screens. A 16.3-inch center touchscreen and a 12.2-inch driver display are standard on every trim. On Elevation and Denali Ultimate the center screen rises to reveal a hidden storage cubby. An 11.5-inch passenger screen, with a polarized film meant to keep it out of the driver's view, is standard on AT4X and Denali Ultimate and optional on AT4 and Denali. The Denali Ultimate, with a 15-inch head-up display and an 8.5-inch camera mirror, has more than 60 inches of screens in total.
CarPlay and Android Auto are back. GM's new software runs Apple CarPlay and Android Auto alongside its own controls and Google built-in apps, including Gemini and Google Maps. GM had dropped phone mirroring from its EVs; GM Authority reports that GM's EVs still do without it.
Super Cruise while towing. GM's hands-free driving system works with a trailer attached, which GMC says no competitor offers. It is standard on AT4, AT4X, Denali and Denali Ultimate, optional on Elevation, and not listed for the Pro. On the trims where it is standard, the price covers three years of the OnStar plan it needs; after that it is a paid subscription, per GMC's reveal. Automatic lane changes switch off while towing.
Interior. Every trim gets a redesigned cabin. Available trim includes real wood (forged wood on the Denali Ultimate) and carbon fiber on the AT4X. Also available: a panoramic sunroof, a center console that folds into a work surface, a 120-volt outlet, HDMI, six USB ports, dual MagSafe chargers and, on the top trims, Bose speakers built into the front headrests.
Off-road. The AT4 and AT4X get a 2-inch factory lift. The AT4X adds Multimatic dampers, 35-inch mud-terrain tires, front and rear locking differentials and a new Baja mode for high-speed off-roading. An AT4X AEV Edition with extra armor comes later.
Looks and bed. A more upright front with a more vertical grille and 7-shaped lights; three new colors. The bed gets 16 standard tie-downs, and the MultiPro tailgate adds four more and a built-in ruler.
Not confirmed by GM. GM Authority reports, citing unnamed sources, that the frame switches from a wax coating to e-coating, which matters to owners who have dealt with peeling frame wax on earlier trucks. GM's releases do not mention the frame.
Engines, towing and payload
Engine | Power | Max towing | Max payload |
|---|---|---|---|
2.7L TurboMax four-cylinder | 350 hp, 455 lb-ft | 9,400 lb | 2,310 lb |
5.7L V8 | 402 hp, 428 lb-ft | 13,500 lb | 2,140 lb |
6.6L V8 | 481 hp, 501 lb-ft | 9,400 lb | 1,450 lb |
3.0L Duramax diesel | 305 hp, 495 lb-ft | 12,100 lb | 1,850 lb |
Figures from GMC's specifications; each maximum comes from a different configuration, so a given truck may be rated lower. The towing figures need four-wheel drive and the Max Trailering Package (the 5.7's 13,500 is a double cab; the crew cab is rated 13,300), while the payload figures mostly come from regular cab two-wheel-drive work trucks. The surprise is the 6.6: it is the most powerful engine, but GMC lists no Max Trailering Package for it and rates it to tow only 9,400 pounds. The 6.6 is only offered on the more expensive crew cab trims (standard on the Denali Ultimate, optional on the AT4X and Denali).
Standard engines by trim: the 2.7 on Pro and Elevation, the 5.7 on AT4 and Denali, the diesel on AT4X and the 6.6 on Denali Ultimate.
How much does the 2027 Sierra 1500 cost?
Trim | 2027 price (crew cab 4WD, including destination) |
|---|---|
Pro | $51,295 |
Elevation | $59,995 |
AT4 | $73,495 |
Denali | $76,795 |
AT4X | $85,495 |
Denali Ultimate | $87,895 |
Prices from GMC, including a $2,795 destination charge, the same as the 2026 truck's, which Consumer Reports called "massive." GMC has priced only crew cab 4WD trucks so far; regular cab, double cab and other versions will be priced "as production expands," so cheaper configurations should follow.
Compared with 2026. Like-for-like comparisons are rough, because GMC has not published every configuration. The Truth About Cars puts the Denali about $4,000 higher and the AT4 and AT4X about $3,000 higher, with the Denali Ultimate up only a couple hundred dollars. In June, KBB put the cheapest 2026 Sierra at $40,895 including destination, but that was a regular cab two-wheel-drive work truck, so the gap to today's $51,295 crew cab 4WD Pro is not a $10,000 price rise.
Compared with the Silverado. The twin Chevrolet Silverado 1500 starts at $41,395 for a Work Truck, per Chevrolet, because Chevy has priced cheaper configurations already. Across the lineups, Silverado prices run $41,395 to $79,995 and Sierra prices $51,295 to $87,895, per KBB.
When is it on sale?
GMC says the first 2027 Sierra 1500s will reach dealers "before the end of the 2026 calendar year." Production of the new GM trucks has started in Silao, Mexico, at what GM called a measured pace, with Fort Wayne, Indiana, to follow in January 2027, per Autoevolution, reporting GM's third-quarter earnings call. Our read: expect thin supply and limited configurations at first.
Is there a hybrid? What is the fuel economy?
There is no hybrid. GMC's lineup is four engines, none hybrid, and Edmunds notes there is still none at launch. Ford's F-150 and Toyota's Tundra both offer hybrids.
EPA ratings are not out yet. The only figure GMC gives is range: with the optional 34-gallon tank, the diesel can cover more than 900 highway miles, by GM's estimate.
How does it drive?
Nobody outside GM has published an on-road drive yet. One outlet has sat in a parked truck; the rest are previews written from GMC's material:
The interior is the headline. Consumer Reports, writing from GMC's announcement, says the Sierra offers "luxury amenities that rival those of high-end SUVs." Pickup Truck + SUV Talk found the Denali Ultimate's seats more comfortable, sitting in a parked truck.
The screens divide people. The Autopian's headline is that GM thinks truck buyers want "a bunch of screens".
The outside barely changed. Consumer Reports says it looks so much like the 2026 truck that you may have to check the grille and headlights to tell them apart.
This section will be rewritten once the first drives publish.
What do car podcasts say about the new Sierra?
Car Curious, our sister car-podcast platform, tracks what podcast hosts say about each car. Since the reveal it has collected 36 passages about the 2027 Sierra across 16 shows. Because the truck is not on sale yet, none of them is a buying verdict; they are first reactions to the announcement. The full breakdown, with every quote linked to the moment it was said, is on Car Curious.
The software gets the warmest reception. Six shows had something good to say about the screens or the new software, and three singled out the return of CarPlay and Android Auto. The warmest words are for the software, not the number of screens. On Kilowatt, a host said the split screen is "actually quite nice because you can keep CarPlay up" while still seeing the radio, range and climate controls. Let's Talk Wheels led its episode with it.
The interior impresses. Two shows praised the cabin outright and three more described it approvingly. TFL Talkin' Trucks said the Denali interiors "feel special in a way that even a lot of the other top model luxury trucks from Ford, from Ram, from Toyota don't feel." The Truck Show Podcast credited GMC with doing more than badge engineering: "the GMC has a different interior dash, different styling."
But maybe too many screens. The same TFL episode, titled "Did GM Go Too Far With the New 2027 GMC Sierra 1500?", is the main dissent: "as far as screens go on these Sierra's, they've gone completely over the top" (TFL). Its hosts also disliked the climate controls living in the touchscreen, though they liked the physical switches kept for four-wheel drive and the trailer brake. The Truck Show Podcast did not think the new front end "looks as clean or as good as the current truck."
Big V8s, no hybrid. Hosts welcomed the new V8s, but Telemetry Transportation Daily questioned the timing with fuel prices rising: "Without a hybrid offering to go up against the Ford F-150, this could be a challenging time to launch more powerful V8s." TFL pointed to the diesel as GM's efficiency play.
How does it compare with its rivals?
Model | Max towing | Hybrid offered |
|---|---|---|
2027 Chevrolet Silverado 1500 | 13,700 lb | No |
2027 GMC Sierra 1500 | 13,500 lb | No |
2026 Ford F-150 | 13,500 lb | Yes (PowerBoost) |
2026 Toyota Tundra | 12,000 lb | Yes (i-Force Max) |
Figures from GMC, Chevrolet, Work Truck Online for the F-150 and Cars.com for the Tundra. The Sierra and Silverado share engines but not ratings: Chevrolet rates its 5.7 100 to 200 pounds higher in the same cab and its 6.6 300 pounds higher (9,700), and its diesel 100 pounds lower. The Silverado's 13,700 comes from a two-wheel-drive max-tow double cab that GMC does not list. Ford and Toyota rate their hybrids below their gas maximums.
Where the Sierra stands out on paper, by GMC's own class comparisons (which exclude its Chevrolet twin): a diesel option, hands-free driving while towing, and the largest touchscreen, standard on every trim. The Silverado shares all three. Where it does not: no hybrid, and a starting price that, for now, is about $10,000 above the Silverado's because GMC has not yet priced its cheaper versions.
What is next?
GMC will publish prices for regular cab and double cab trucks as production expands, which should bring the starting price down. The AT4X AEV Edition comes later. First drives, EPA fuel economy and the first long-term reviews should follow the trucks into dealers around the turn of the year, and this page will be updated when they do.
Prices, specifications and dates come from the outlets linked in each section. Podcast quotes describe how hosts received the truck and are not a source for any figure on this page.