SIERRA HEAVY DUTY 2026 GMC
EXPLORE SIERRA HEAVY DUTY TRIMS Find the perfect GMC model and see how it stacks up against the competition. Compare features, pricing, and specifications across trucks and SUVs.
SLT $64,70019
INCLUDES SLE KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
- 10-way power driver and front outboard passenger heated seats with lumbar
- Heated steering wheel
- ProGrade® Trailering System20 with In-Vehicle Trailering App21
- 18" machined aluminum wheels with dark grey metallic accents
KEY AVAILABLE FEATURES22
- 10-way power-adjustable front heated and ventilated bucket seats with perforated leather appointments
- MultiPro Tailgate and MultiPro Tailgate Audio System by Kicker23
AT4 $71,60024
INCLUDES SLT KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
- Exclusive Jet Black interior with Kalahari accents, and heated and ventilated perforated front leather seating surfaces
- Exclusive 20" gloss-black aluminum wheels with available BFGoodrich® off-road tires
- Off-Road Suspension Package with twin-tube Rancho shocks and skid plates
- Up to 14 available camera views25 with HD Surround Vision26
- Adaptive Cruise Control27 with trailering28
KEY AVAILABLE FEATURES29
- 15" diagonal Head-Up Display30 with off-road inclinometer
AT4X31 $83,70032
INCLUDES AT4 KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
- Factory-installed 1.5" suspension lift, Multimatic® DSSV dampers, rear electronic-locking differential, larger steel transfer case skid plate and front aluminum skid plate
- 35" Goodyear® Territory MT tires
- 16-way heated and ventilated power front seats with massage feature
- Obsidian Rush interior featuring full-grain leather seating with technical-grain leather accents and authentic Vanta ash wood
KEY AVAILABLE FEATURES33
- AT4X AEV Edition featuring stamped steel bumpers, steering gear and transfer case skid plates, and 18" Salta gloss-black wheels
- Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
DENALI $75,00034
INCLUDES SLT KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
- 20" Ultra-Bright machined aluminum wheels with bright chrome inserts35
- Denali-exclusive authentic wood, patterned aluminum trim and Forge perforated leather seating surfaces
- 12-way heated and ventilated power front seats
KEY AVAILABLE FEATURES36
- Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
- Power sunroof
- Rear Camera Mirror37
DENALI ULTIMATE $93,80038
INCLUDES DENALI KEY STANDARD FEATURES, PLUS ADDS OR SUBSTITUTES
- Duramax 6.6L Turbo-Diesel V8 engine with 10-speed automatic transmission
- Signature Vader Chrome grille and exclusive 20" Ultra-Bright machined aluminum wheels with gloss-black inserts39
- Exclusive Alpine Umber interior featuring full-grain leather seating, authentic Paldao wood and 16-way power front seats with massage feature
- 12-Speaker Bose40 Premium Series with Centerpoint41 surround sound
- Illuminated power assist steps and MultiPro Tailgate Audio System by KICKER42
KEY AVAILABLE FEATURES43
- Auxiliary trailer camera
Serious power. Serious trailering.
DURAMAX 6.6L TURBO-DIESEL V8 ENGINE
The Sierra Heavy Duty truck’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10-speed automatic transmission.
SERIOUS TOWING POWER
The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 21,870 lbs.44
ADVANCED TRAILERING TECH
The 2026 Sierra Heavy Duty truck offers advanced trailering-assistance technologies so you can trailer with confidence.
Denali Ultimate with exclusive Alpine Umber interior and full-grain leather seating.
Premium interiors to make every trip first-class.
16-WAY POWER FRONT SEATS WITH MASSAGING FEATURE
Experience serious comfort in the Sierra Heavy Duty truck’s available best-in-class4516-way power front seats with massaging feature.
LUXURIOUS MATERIALS
Sierra HD Denali Ultimate’s Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of its namesake’s mountain summit.
SPACIOUS CABIN
The Sierra Heavy Duty truck features best-in-class Crew Cab front head and leg room.46
Keep informed and in command.
13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM47
The color touchscreen with Google built-in48 compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.
15" DIAGONAL MULTICOLOR HEAD-UP DISPLAY
The available 15" diagonal Head-Up Display49 helps keep important information like speed and alerts in clear view.
12.3" DIAGONAL COLOR DRIVER INFORMATION CENTER50
GMC Sierra HD features a driver-focused display that puts information front, center and easily visible in high-resolution clarity.
Powerfully bold. Impressively stylish.
BOLD FRONT END
Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
LED PROJECTOR HEADLAMPS AND SIGNATURE LIGHTING
LED projector headlamps with striking animated sequences help enhance the Sierra Heavy Duty work truck’s impressive exterior design.
MULTIPRO TAILGATE
The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job. Shown with available MultiPro Audio System by KICKER.51
Go forth with added confidence.
SIERRA HD PRO SAFETY52
Every GMC Sierra 2500 HD and GMC Sierra 3500 HD truck includes safety and driver assistance technologies that help while driving and trailering.