Henry Brown Buick GMC · Gilbert, AZ

2026 GMC Sierra 1500 SLT

5,537 miles · truck · Price dropped $2,000

1 / 34 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 1500

TrimSLT

VIN3GTUUDE8XTG249238

Stock number26T1426

Mileage5,537 miles

BodyPickup

Engine3.0L 6-cyl turbo

Displacement3.0L

TransmissionAutomatic

Drivetrain4WD

FuelDiesel

MPG22 city / 26 hwy

ExteriorSterling Metallic

Towing8700

Vehicle description

Meet the 2026 GMC Sierra 1500 SLT, a capable truck designed for those who demand both power and refinement in their daily driver and weekend adventures. - 3.0L Turbocharged Duramax Diesel with 305 hp and 495 lb-ft of torque - Premium GMC Infotainment Audio System with SiriusXM 360L - Wireless Apple CarPlay and Android Auto integration - Heated leather-appointed front seats with 10-way power adjustment - Advanced safety features including Automatic Emergency Braking and Forward Pedestrian Braking - Lane Keep Assist with Lane Departure Warning - Auto High-beam Headlights with IntelliBeam technology - Integrated Trailer Brake Controller and Hitch Guidance - Remote Vehicle Starter System - 4-Wheel Disc ABS Brakes with Electronic Stability Control - Perforated leather seating surfaces - Power door mirrors with heating capability - OnStar Services capability - Navigation System included - 18-inch machined aluminum wheels This Sierra 1500 SLT delivers exceptional fuel efficiency with an estimated 22 mpg in the city and 26 mpg on the highway, making it practical for both work and leisure. The turbocharged diesel engine provides the torque you need for towing and hauling while maintaining impressive efficiency. The silver exterior presents a professional appearance that holds up well over time. Inside, you'll find a thoughtfully designed cabin with dual-zone automatic climate control, heated steering wheel, and power windows throughout. The split folding rear seat offers flexibility for cargo or passenger comfort. Multiple USB charging ports and a 120-volt bed-mounted power outlet keep your devices powered wherever you go. Safety remains a priority with dual front impact airbags, front and rear side impact protection, and the OnStar emergency communication system. The automatic emergency braking system provides additional peace of mind, while the backup camera and forward collision alert help you navigate tight spaces and avoid obstacles. The truck's trailering package, complete with integrated trailer brake controller and hitch guidance, makes towing straightforward. Chrome bumpers and premium exterior trim details contribute to the truck's refined appearance. The perimeter lighting ensures visibility during early morning or late-night drives. This 2026 GMC Sierra 1500 SLT represents solid truck capability with modern comfort and technology. With its diesel efficiency, well-appointed interior, and comprehensive feature set, this truck is ready to handle whatever you need. Visit our showroom today to experience this truck firsthand and discover why it's the right choice for your needs. Price includes: $2000 - Bonus Cash. Exp. 11/30/2026 $6250 - Purchase Allowance. Exp. 11/30/2026

Features & options (222)

Bluetooth®
Heated Steering Wheel
Remote Start
4WD/AWD
Android Auto
Apple CarPlay
Keyless Entry
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Lane Keep Assist
Forward Collision Warning
Navigation System
Rear View Camera
Automatic Climate Control
Entertainment System
Turbo Charged Engine
Cruise Control
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
Steering-wheel mounted controls
May require additional optional equipment
6-speaker audio system
SiriusXM Trial Subscription
Wi-Fi Hotspot capable
SiriusXM with 360L Trial Subscription
Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
Can use Apple CarPlay and Android Auto wirelessly
Place and receive hands-free phone calls
Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
Heated, power, driver-side auto-dimming, power-folding outside mirrors
Puddle lamps
Perimeter lighting
Memory setting
Cab-mounted cargo area lamps
With switch in switch bank left of the steering wheel
Illuminates the cargo bed area
Rainsense automatic wipers
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Rear wheelhouse liners
LED projectors with Fade-on/ Fade-off animation, LED turn signals and Daytime Running Lamps
Chrome front bumper
LED fog lamps
Help minimize glare in adverse driving conditions
Deep-tinted glass
Provides added protection from sun and glare
Grille (Chrome header and chrome grille insert bars with gloss black accents.)
Tailgate and bed rail protection caps
17" full-size spare steel wheel with Black finish
IntelliBeam
18" 265/65R18SL all-season, blackwall tires
17" 265/70R17SL all-season, blackwall spare tire
Chrome rear bumper
With integrated CornerSteps
Chrome mirror caps
18" 6-spoke machined aluminum wheels with Dark Grey Metallic accents
Full chrome surround window moldings
Chrome door handles
Cargo bed LED lighting
Provides light to find cargo in the bed
Rear pillar lamps
Spare tire carrier lock
Helps keep spare tire secure
Utilizes the same key as the door and ignition
GMC MultiPro Tailgate
Sterling Metallic
Rear air vents
Provides cabin comfort for rear occupants
Rear window defogger
120-volt box-mounted power outlet
3-prong auxiliary household-style outlet
Located in the pickup bed
Rear carpeted floor mats
Helps protect your interior from road debris and the elements
Color-keyed to match the interior
Denali model has unique premium carpet
Denali Ultimate model has premium floor mats
Outside temperature display
Located in infotainment display
40/20/40 split-bench front seat with under-seat storage
Seating for up to 3
Driver and front passenger seatbacks recline
Head restraints at the outboard seating positions
Center seatback that doubles as a fold-down armrest with storage
Seat trim, Perforated leather-appointed front outboard
Front carpeted floor mats
Denali Ultimate model has premium floor mats with corner applique
10-way power front passenger seat
Forward and back
Up and down
Tilt seat cushion back and upright
Recline seatback up and down
Includes 2-way power lumbar
Inside rearview auto-dimming mirror
USB ports
(2) Charge ports located on rear of console
Power windows with rear express-down
Maintains a selected speed while driving
Set and resume speed functions
Heated driver and front outboard passenger seats
Individually controlled
10-way power driver seat with power lumbar
Moves the seat forward and back, and up and down
Tilt the seat cushion and seatbacks
Wrapped steering wheel
Keyless Open and Start
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
13.4" diagonal multicolor reconfigurable Infotainment screen
Power windows
Front passenger with express-up/down
Driver with express-up/down
Steering column lock, electrical
Manual tilt and telescoping steering column
Provides extra comfort when entering or exiting the vehicle
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
120-volt power outlet
Located on the instrument panel
Compass
Located in instrument cluster
12.3" diagonal color Driver Information Center
Driver memory
Power door locks
Programmable
Carpeted floor covering
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)
Jet Black, Perforated leather-appointed front outboard seat trim
Fully boxed frame
Hydroformed front section
High-strength steel
4-wheel antilock disc brakes
Standard Suspension Package
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
3.23 rear axle ratio
Cargo tie-downs (12)
Single-outlet exhaust
Aluminized stainless-steel muffler and tailpipe
Capless fuel fill
Black vertical recovery hooks
Two front frame-mounted
Four wheel drive
Brake pad wear indicator
Heavy-duty 730 cold-cranking amps battery
80 Amp-hr
Maintenance-free with rundown protection and retained accessory power
Electric Power Steering
Electric, rack-mounted with variable assist
Steering assist is greater during low-speed maneuvers, such as parking
Single-speed Autotrac Transfer Case
3 Transfer Case modes
2WD HI mode
Vehicle operates in 2-wheel drive
Suitable for routine driving on all road surfaces
4WD Auto mode
4WD HI mode
Terrain mode
Heavy-duty 850 cold-cranking amps battery
95 Amp-hr
7,200 lbs. GVWR
Emissions, Federal requirements
220-amp alternator
SLT Preferred Equipment Group includes standard equipment
LED Daytime Running Lamps
Daytime Running Lamps automatically illuminate signature lighting
Seat Belt Adjustable Guide Loops
Front row only
OnStar services capable
Buckle to Drive
Following Distance Indicator
Designed to help you maintain a safe following distance
6 airbags
Dual-stage frontal airbags for driver and front outboard passenger
Head-curtain airbags for outboard seating positions
Automatic Emergency Braking
Works at speeds between 5 and 50 mph
Forward Collision Alert
Rear Seat Belt Indicator
Hitch Guidance
Can help you line up the hitch to your trailer
Rear Seat Reminder
Tire Pressure Monitoring System with Tire Fill Alert
HD Rear Vision Camera
Can help you park or avoid vehicles and objects
Lane Keep Assist with Lane Departure Warning
You may receive additional Lane Departure Warning alerts if needed
OnStar Basics
Drive confidently with core OnStar services including
Remote commands
Built-in voice assistance
Real-time traffic and navigation
Automatic Crash Response to help if you're in need
Front Pedestrian Braking
Limited nighttime and low visibility performance
DriveType: Four Wheel Drive
City: 22 MPG
Hwy: 26 MPG
Combined: 24 MPG
Fuel System: Direct Injection
Fuel Tank Capacity: 24 gal
Fuel Type: Diesel Fuel
Horse Power: 305
Rear Wheel: Single
Trailering Capacity: 8700 lbs

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

AutosXchange Intel

Vehicle price analysis

Live listings · nationwide

Asking price$48,620Dealer asking price · 5,537 mi

Market value$51,998Market value · based on 275 comparable cars

vs. market-6.5%Not rated · prices vary widely

Where this price sits

In the typical middle range · 65% of 150 similar listings ask more than this car.

Market value $51,998

This car$48,620

$40,000lowest$71,060highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Not rated · comparable prices vary too widely$3,378 below the market value of $51,998

Price range

$40,000$71,729

95th lowest price of 276 similar listings nationwideTick marks the market value · range of 275 similar listings

AutosXchange Insights

Compared with 275 used 2026 GMC Sierra 1500 SLT listings nationwide.
Priced $3,378 below the market value of 275 comparable cars.
95th lowest price of 276 similar listings nationwide.
Has about the same mileage as similar listings.
About 5,537 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # 26T1426 — 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 6, 2026. 1 price change at this dealership: $50,620 → $48,620 (−$2,000).

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

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 SLT · used · any miles · nationwide. Showing the 12 nearest of 275 comparable cars for sale, nearest first.

2026 GMC Sierra 1500 SLT for sale at Henry Brown Buick GMC in Gilbert, AZ

Price drop −$2,000

33 photos