2026 GMC AT4X AT4X

Dealership Vehicle Description
Performance & Specs
Interior
Exterior
Safety

Elevate your driving experience with the 2026 GMC Sierra 1500 AT4X, a true pinnacle of power and refinement. This exceptional truck is poised to redefine your expectations, blending uncompromising capability with a remarkable level of sophistication.

Tailored to the discerning driver, this Sierra 1500 AT4X boasts an impressive array of features:

6.2L V8 EcoTec3 engine with Dynamic Fuel Management
Dual, Sport-Mode Enabled Active Exhaust
Sterling Metallic exterior with Gray accents
Dealer-installed GMC MultiPro Tailgate Step Lights

Elevate your journeys with the premium Bose audio system, complete with 12 high-performance speakers and a Kicker-powered MultiPro Tailgate Audio System. Stay connected and entertained with the state-of-the-art GMC Infotainment system, featuring SiriusXM with 360L and wireless Apple CarPlay/Android Auto compatibility.

Comfort and convenience are paramount in this Sierra, with features like dual-zone automatic climate control, heated and ventilated front seats, and a power-sliding rear window with rear defroster. The Heads-Up Display and 15-inch Multicolor Diagonal Head-Up Display keep essential information within your line of sight, while the 16-way power-adjustable driver and passenger seats ensure a personalized fit.

Tackle any terrain with confidence, thanks to the Off-Road Suspension, Driver-Selectable Full-Locking Front and Rear Differentials, and Hill Descent Control. The Trailering Package, including an Integrated Trailer Brake Controller and Trailer Tire Pressure Monitor System, provides seamless towing capabilities.

Safety is paramount, with advanced features like Automatic Emergency Braking, Forward Collision Alert, Lane Keep Assist with Lane Departure Warning, and the Safety Alert Seat. The Surround Vision and Bed View Camera systems offer enhanced visibility, while the Trailer Side Blind Zone Alert and Rear Cross Traffic Braking provide added peace of mind.

This 2026 GMC Sierra 1500 AT4X is a true testament to the brand's commitment to excellence. Experience the unparalleled power, technology, and refinement that make this truck a standout in its class. Visit our showroom today to take this remarkable vehicle for a test drive and discover the true meaning of elevated performance. Price includes: $1500 - Buick GMC Bonus Cash. Exp. 08/03/2026 $1750 - Buick & GMC Consumer Cash Program. Exp. 08/03/2026

Air filter
heavy-duty
Alternator
220 amps (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Automatic Stop/Start
Battery
heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Brake lining wear indicator
Brakes
4-wheel antilock, 4-wheel disc with DURALIFE rotors
Capless Fuel Fill
Cargo tie downs (12)
fixed
Differential
driver-selectable full-locking front, e-locking
Differential
driver-selectable full-locking rear, e-locking
Electronic Precision Shift and steering column paddle shifters
Exhaust
aluminized stainless-steel muffler and tailpipe
Exhaust
dual system (No exposed chrome tips in bumper. Only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Four wheel drive
Frame
fully-boxed, hydroformed front section
GVWR
7300 lbs. (3311 kg) (Requires (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Hill Descent Control
Pickup bed
Push Button Start
Rear axle
3.23 ratio
Skid Plates
Steering
Electric Power Steering (EPS) assist, rack-and-pinion
Suspension
Off Road with 2 factory installed lift and Multimatic DSSV dampers (Not available with 22 LPO wheels and tires.)
Trailer brake controller
integrated
Trailer Tire Pressure Monitor Sensors includes set of 4 sensors. Sensor functionality requires (UET) In-Vehicle Trailering App to be ordered with the vehicle and installed by the factory. Sensors will be shipped loose with the truck and will need to be installed on trailer by customer. System is capable of monitoring up to 6 wheels. Additional or replacement sensors are available through GM Accessories
Transfer case
two-speed, electronic Autotrac with push button control (4WD models only) (Includes Terrain mode.)
Transmission
10-speed automatic with Electronic Precision shift, electronically controlled with overdrive, tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)

Adaptive Cruise Control
Air conditioning
dual-zone automatic climate control
Air vents
rear
Assist handles front A-pillar mounted for driver and passenger
rear B-pillar mounted
Audio System
13.4 diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes color touch-screen, multi-touch display, AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
Bluetooth for phone
connectivity to vehicle infotainment system
Bose Premium Series with 12-speaker system with CenterPoint
Richbass woofer and AudioPilot
Center Console
floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Compass
located in instrument cluster
Defogger
rear-window electric
Door locks
power
Driver Information Center
enhanced, 12.3 diagonal reconfigurable multicolor digital display
Driver memory recalls driver presets for power driver seat and outside mirrors
Exterior Temperature Display
located in radio display
Floor covering
color-keyed carpeting
GMC Premium information Display- 13.4 diagonal Multicolor touch screen
In-Vehicle Trailering App System
includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
Keyless Open and Start includes remote keyless entry
Multicolor 15 Diagonal Head-Up Display
Power outlet
bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
Power outlet
interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Premium Floor Liners with removable carpet insert
front (Deleted with (ULV) AT4X AEV Edition.)
Premium Floor Liners with removable carpet insert
rear (Deleted with (ULV) AT4X AEV Edition.)
Rear Camera Mirror
inside rearview auto-dimming with full camera display
Remote vehicle starter system
Seat adjuster
driver 16-way power including lumbar and massage
Seat adjuster
passenger 16-way power including lumbar and massage
Seat trim
Full grain leather front
Seat
Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
Seating
heated driver and front outboard passenger
Seats
front bucket with center console
Seats
heated second row outboard seats
Seats
ventilated driver and front passenger
SiriusXM Trial Subscription
SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy
visit siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
Steering column lock
electrical
Steering column
power rake and telescoping
Steering wheel audio controls
Steering wheel
heated
Steering wheel
leather-wrapped
Theft-deterrent system
unauthorized entry
Universal Home Remote
USB ports
(2) charge-only, rear
USB Ports
2 (first row) located on console
USB Ports
2, Charge/Data ports located inside center console
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
Window
power front, passenger express up/down
Windows
power front, drivers express up/down
Windows
power rear, express down
Wireless Charging
Wireless
Apple CarPlay / Wireless Android Auto

Bedliner
Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Crew Cab models are available with Ship Thru codes (VCO), (VDT), (VYC) or (VYS).)
Bumper
rear body-color with corner steps (Not available with (ULV) AT4X AEV Edition. Bumper color is High Gloss Black on AT4X.)
CornerStep
rear bumper (Not included with (ULV) AT4X AEV Edition.)
Door handles
body-color (Gloss Black with (ULV) AT4X AEV Edition.)
Fog lamps
LED
Front Bumper
AEV Stamped-steel high approach Front Bumper with heavy duty cast recovery points
Glass
deep-tinted
Grille (Gloss Black header with Dark Nickel grille insert bars with gloss black accents.)
Headlamps
LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
IntelliBeam
automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
Lamps
cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
Lighting
perimeter
LPO
MultiPro Tailgate Audio System by Kicker (dealer-installed)
Mirror caps
high gloss Black
Mirrors
outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
Sunroof
power
Tailgate and bed rail protection caps
top
Tailgate
gate function manual with EZ Lift includes power lock and release, includes hitch area light
Tailgate
GMC MultiPro Tailgate with six functional load/access features
Taillamps
LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Tire
spare LT275/70R18 blackwall Goodyear Wrangler Territory MT
Tires
LT275/70R18 blackwall Goodyear Wrangler Territory MT
Wheelhouse liners
rear
Wheels
18 x 8.5 (45.7 cm x 21.6 cm) Gloss Black painted full-size, spare Aluminum
Wheels
18 x 8.5 (45.7 cm x 21.6 cm) Painted aluminum with dark painted pockets
Window
power, rear sliding with rear defogger
Wipers
front rain-sensing

Airbags
Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
Bed View Camera camera in the CHMSL to show a view of the cargo bed
display located in infotainment screen (Includes Trailer View Camera Provisions and Trailer Assist Guidelines.)
Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) GMC Pro Safety.)
Daytime Running Lamps
LED signature lighting
Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
Front and Rear Park Assist
ultrasonic
Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a center stack display. Includes front camera washer.
Hitch Guidance
Hitch View with image adjustment
Pan/Zoom/Tilt
Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including remote commands
built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (Requires (UE1) OnStar. OnStar Basics includes remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
OnStar Services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
Rear Cross Traffic Braking
Rear Pedestrian Alert
Rear Seat Belt Indicator
Rear Seat Reminder
Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)
Seat Belt Adjustable Guide Loops
front row only
StabiliTrak
stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Tire Pressure Monitoring System
auto learn includes Tire Fill Alert (does not apply to spare tire)
Trailer Camera Provisions and trailer viewing software
Trailer Side Blind Zone Alert