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2026 GMC Sierra 1500 AT4X

1 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 1500
TrimAT4X
Stock numberG261218
Mileage1 miles
BodyPickup
Engine3.0L 6-cyl turbo
Displacement3.0L
TransmissionAutomatic
Drivetrain4WD
FuelDiesel
MPG19 city / 20 hwy
ExteriorOnyx Black
InteriorObsidian Rush, Full Grain Leather Front Seat Trim
Towing8500

Vehicle description

This 2026 GMC Sierra 1500 AT4X Crew Cab rides on four-wheel drive and a 147-inch wheelbase, powered by the Duramax 3.0L Turbo-Diesel I6 paired with a 10-speed automatic and 3.23 rear axle ratio. Onyx Black paint wraps an Obsidian Rush interior with 16-way power front bucket seats featuring lumbar and massage, plus driver memory. Preferred Equipment Group 4SG adds Trailer Side Blind Zone Alert, a power sliding rear window with defogger, front and rear park assist and rain-sensing wipers. Premium GMC Infotainment brings wireless Apple CarPlay and Android Auto. 18-inch painted aluminum wheels wear LT275/70R18 tires. In stock at Temecula Valley Buick GMC in Temecula, CA. Stock #G261218. Price includes: $6250 - Buick & GMC Consumer Cash Program 26-40ACB-015 (Exp. 11/30/2026)Includes: CustomIncentive

Features & options (250)

  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Keyless Entry
  • Leather Seats
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Lane Departure Warning
  • Lane Keep Assist
  • Wireless Phone Charging
  • Blind Spot Monitor
  • Forward Collision Warning
  • Navigation System
  • Parking Assistance
  • Rear View Camera
  • Tow Hitch/Tow Package
  • Automatic Climate Control
  • Entertainment System
  • Turbo Charged Engine
  • Place and receive hands-free phone calls
  • SiriusXM with 360L Trial Subscription
  • Steering-wheel mounted controls
  • May require additional optional equipment
  • Wi-Fi Hotspot capable
  • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
  • Can use Apple CarPlay and Android Auto wirelessly
  • 13.4" diagonal GMC Premium Infotainment System with Google built-in
  • Bluetooth® streaming audio for music and select phones
  • Wireless Apple CarPlay capability for compatible phones
  • Wireless Android Auto capability for compatible phones
  • Customize and manage entertainment and vehicle feature setting
  • Voice-activated technology for phone
  • SiriusXM Trial Subscription
  • 18" LT275/70R18 MT Goodyear Wrangler Territory blackwall tires
  • Routine tire rotations are strongly recommended
  • Deep-tinted glass
  • Provides added protection from sun and glare
  • Spray-on bedliner
  • Includes logo on all trims except PRO
  • IntelliBeam
  • Front Bumper, AEV Stamped-steel high approach
  • Heavy duty cast recovery points
  • Power sunroof
  • Retracts into the roof
  • Offers tilt and slide features with express-open and -close
  • GMC MultiPro Tailgate
  • Body-color rear bumper
  • MultiPro Audio System by Kicker
  • Bluetooth® compatibility for wireless playback
  • 3.5mm and USB inputs for audio playbacks
  • A custom ABS baffle with full gasket sealing
  • A weatherproof amplifier hidden in the tailgate
  • Cargo bed LED lighting
  • Provides light to find cargo in the bed
  • Rear pillar lamps
  • Black mirror caps
  • Rainsense automatic wipers
  • Body-color door handles
  • Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
  • Grille (Gloss Black header with Dark Nickel grille insert bars with gloss black accents.)
  • Tailgate and bed rail protection caps
  • Heated, power, driver-side auto-dimming, power-folding outside mirrors
  • Puddle lamps
  • Perimeter lighting
  • Memory setting
  • 18" LT275/70R18 blackwall Goodyear Wrangler Territory MT spare tire
  • CornerStep rear bumper
  • Located at each end of the rear bumper
  • Textured step pads to help provide secure footing
  • 18" Gloss Black Aluminum full-size spare wheel
  • Cab-mounted cargo area lamps
  • With switch in switch bank left of the steering wheel
  • Illuminates the cargo bed area
  • LED projectors with Fade-on/ Fade-off animation, LED turn signals and Daytime Running Lamps
  • 18" Painted aluminum wheels with dark painted pockets
  • Rear wheelhouse liners
  • LED fog lamps
  • Help minimize glare in adverse driving conditions
  • Tailgate with EZ Lift assist, power lock & release
  • Hitch area lighting
  • Spare tire carrier lock
  • Helps keep spare tire secure
  • Utilizes the same key as the door and ignition
  • Power sliding rear window with rear defogger
  • Front license plate bracket
  • Onyx Black
  • Steering column lock, electrical
  • Power windows
  • Front passenger with express-up/down
  • Carpeted floor covering
  • Color-keyed to match the interior
  • Ventilated driver and front passenger seats
  • Individually controlled
  • Cooling feature includes both seatbacks and cushions
  • Compass
  • Located in instrument cluster
  • Rear Camera Mirror
  • The feature also allows brightness, vertical tilt and zoom adjustments
  • Premium front floor liners with removable carpet insert
  • Power tilt and telescoping steering column
  • Use the driver memory to save and recall memory settings
  • Provides extra comfort when entering or exiting the vehicle
  • 16-way power passenger seat with power lumbar and massage
  • Seat trim, Full grain leather front
  • 12.3" diagonal color Driver Information Center
  • Power windows with rear express-down
  • Heated rear outboard seats
  • Assist handles
  • Front A-pillar mounted for Driver and Passenger
  • Rear B-pillar mounted
  • USB ports
  • (2) Data/charge ports located inside center console
  • 120-volt power outlet
  • 3-prong auxiliary household-style outlet
  • Located on the instrument panel
  • Leather-wrapped steering wheel
  • 13.4" diagonal multicolor reconfigurable Infotainment screen
  • Driver with express-up/down
  • 120-volt box-mounted power outlet
  • Located in the pickup bed
  • Front bucket seats
  • Includes center console
  • Outside temperature display
  • Located in infotainment display
  • Rear air vents
  • Provides cabin comfort for rear occupants
  • Up-level rear seat with storage package
  • 60/40 Full-length folding bench seat
  • Seatback storage on left and right side
  • Center fold out armrest with 2 cupholders
  • Underseat storage (full cab width)
  • You can always override the feature and take control
  • Dual-zone automatic climate control
  • Allows individual climate settings for both driver and front passenger
  • Head-Up Display
  • Multi-color 15" diagonal Head-Up Display
  • Adjustable vertical position and brightness of the display
  • Theft-deterrent unauthorized entry system
  • Helps deter unauthorized entry, helping to protect your vehicle
  • Rear window defogger
  • Heated driver and front outboard passenger seats
  • Driver memory
  • (2) First row, located on console
  • Keyless Open and Start
  • Universal Home Remote
  • 3-channel programmable
  • Wireless Charging
  • Uses induction technology for portable electronic devices
  • Convenient charging location at the front of the center console
  • Device may require optional case for phones that are compatible
  • In-Vehicle Trailering App
  • Checklist
  • Trailer light sequencing
  • Trailer maintenance reminders
  • Trailer security alerts
  • Trailer mileage
  • Tow/haul reminder
  • Trailer electrical diagnostics
  • (2) Charge ports located on rear of console
  • 16-way power driver seat with power lumbar and massage
  • Premium rear floor liners with removable carpet insert
  • Front center console
  • Power door locks
  • Programmable
  • Obsidian Rush, Full grain leather front seat trim
  • 7,300 lbs. GVWR
  • Aluminized stainless-steel muffler and tailpipe
  • Fully boxed frame
  • Hydroformed front section
  • High-strength steel
  • Driver-selectable full-locking front differential
  • When activated, locks both front wheels to turn in unison
  • Increases traction in off-road situations
  • Skid plates
  • Electric Power Steering
  • Electric, rack-mounted with variable assist
  • Steering assist is greater during low-speed maneuvers, such as parking
  • Capless fuel fill
  • Heavy-duty 850 cold-cranking amps battery
  • 95 Amp-hr
  • Maintenance-free with rundown protection and retained accessory power
  • Driver-selectable full-locking rear differential
  • When activated, locks both rear wheels in unison
  • Increase traction in off-road situations
  • Trailer Tire Pressure and Temperature Sensors
  • Set of 4 sensors
  • Additional or replacement sensors are available as GM Accessory
  • System is capable of monitoring up to 6 wheels
  • Dual-outlet exhaust
  • Integrated into rear bumper
  • Aluminized stainless-steel muffler and tailpipes
  • 220-amp alternator
  • 3.23 rear axle ratio
  • Hill Descent Control
  • Uses antilock braking to help provide a smooth, controlled descent
  • Activates by pushing a button below the instrument panel
  • Cargo tie-downs (12)
  • Four wheel drive
  • 4-wheel antilock disc brakes
  • 2-speed Autotrac Transfer Case
  • 2WD HI mode
  • Vehicle operates in 2-wheel drive
  • Suitable for routine driving on all road surfaces
  • 4WD Auto mode
  • 4WD HI mode
  • 4WD LO mode
  • Neutral
  • Brake pad wear indicator
  • Off-Road suspension with 2" factory installed lift and Multimatic DSSV dampers
  • Integrated trailer brake controller
  • Integrated with the antilock brake system (ABS)
  • Emissions, California state requirements
  • AT4X Preferred Equipment Group includes standard equipment
  • LED Daytime Running Lamps
  • Daytime Running Lamps automatically illuminate signature lighting
  • Rear Seat Belt Indicator
  • Hitch Guidance
  • Can help you line up the hitch to your trailer
  • Rear Seat Reminder
  • OnStar services capable
  • Tire Pressure Monitoring System with Tire Fill Alert
  • Rear Pedestrian Alert
  • Limited nighttime and low visibility performance
  • Bed View Camera
  • Includes 2 Trailer Camera Provisions
  • Following Distance Indicator
  • Designed to help you maintain a safe following distance
  • Trailer Side Blind Zone Alert
  • Inside/Rear Trailer Camera Input
  • Includes trailer viewing software
  • Lane Keep Assist with Lane Departure Warning
  • You may receive additional Lane Departure Warning alerts if needed
  • Buckle to Drive
  • Seat Belt Adjustable Guide Loops
  • Front row only
  • HD Surround Vision
  • Can help you park or avoid vehicles and objects
  • 6 airbags
  • Dual-stage frontal airbags for driver and front outboard passenger
  • Head-curtain airbags for outboard seating positions
  • Rear Cross Traffic Braking
  • OnStar Basics
  • Drive confidently with core OnStar services including
  • Remote commands
  • Built-in voice assistance
  • Real-time traffic and navigation

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Temecula, California
Asking price$70,227Dealer asking price · 1 mi
Market value$71,925Market value · based on 30 comparable cars
vs. market Fair price-2.4%Fair price · based on 30 comparable cars

Where this price sits

In the typical middle range · 57% of 30 similar listings ask more than this car.

$66,833lowest$75,316highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

-2.4%
−25%Market value+25%
Fair price$1,698 below the market value of $71,925

Price range

$70,227
$66,833$75,316
14th lowest price of 31 similar listings within 50 milesTick marks the market value · range of 30 similar listings

AutosXchange Insights

  • Compared with 30 new 2026 GMC Sierra 1500 AT4X listings within 50 mi.
  • Priced $1,698 below the market value of 30 comparable cars.
  • 14th lowest price of 31 similar listings within 50 miles.
  • About 1 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # G261218 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 8, 2026. No price change at this dealership since Nov 8 ($70,227).

$70.0k$70.1k$70.2k$70.3k$70.4k$70.5kNov 8Nov 9Nov 10Nov 11Nov 12

AutosXchange Intel Hub: Price changes for this model in California · This model in the Intel Hub · Market movers in California

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 1500 AT4X · new · within 50 miles of Temecula, California. Showing the 12 nearest of 30 comparable cars for sale, nearest first.

More GMC Sierra 1500 near Temecula

All years and trims. Nearest first.