2026 GMC Sierra 2500HD SLT Summit White Duramax 6.6L V8 Turbodiesel
10-Speed Automatic, 4WD, Black Leather.
This vehicle has the following features:
Gooseneck/5th Wheel Prep Package (Spray-on Pickup Bedliner with GMC Logo), Preferred Equipment Group 4SA (10-Way Power Driver Seat Adjuster with Lumbar, 10-Way Power Passenger Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports, 2-Speed Active Transfer Case, 6-Speaker Audio System Feature, Chrome Surround Grille with Chrome Insert Bars, Deep-Tinted Glass, Driver Memory, Electric Rear-Window Defogger, Front 40/20/40 Split-Bench Seats, Front Rain-Sensing Wipers, Heated Driver and Front Outboard Passenger Seats, Keyless Open and Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, OnStar Services Capable, Power Front Passenger Windows with Express Up/Down, Push Button Start, Rear Wheelhouse Liners, Remote Vehicle Starter System, SiriusXM with 360L Trial Subscription, Steering Wheel Audio Controls, Unauthorized Entry Theft-Deterrent System, and Wireless Phone Projection), Sierra HD Pro Safety Plus Package (Bed View Camera with Two Trailer Camera Provisions, HD Surround Vision, Rear Cross Traffic Alert, Safety Alert Seat, Trailer Cam Provisions and Trailer Viewing Software, Trailer Side Blind Zone Alert, and Ultrasonic Front and Rear Park Assist), SLT Convenience Package (2 Charge/Data USB Ports Inside Center Console, Bose Premium 7-Speaker Sound System, Floor-Mounted Center Console, Front Bucket Seats, LED Smoked Amber Roof Marker Lamps, Ventilated Driver and Front Passenger Seats, and Wireless Charging), SLT Preferred Package (Adaptive Cruise Control, Heated 2nd Row Outboard Seats, Power Sliding Rear Window with Defogger, and Universal Home Remote), Suspension Package, 10-Speed Automatic, 4WD, Black Leather, 18 Machined Aluminum Wheels, 220-Amp Alternator, 4-Wheel Disc Brakes, 6 Speakers, 6 Rectangular Chromed Tubular Assist Steps, ABS brakes, Air Conditioning, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Brake assist, Buckle to Drive, Bumpers: chrome, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar, Engine Block Heater, Exhaust Brake, Following Distance Indicator, Forward Collision Alert, Front anti-roll bar, Front Center Armrest w/Storage, Front dual zone A/C, Front fog lights, Front License Plate Kit, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heated door mirrors, Heated front seats, Heated steering wheel, Heavy-Duty 80 Amp Battery, Hitch Guidance with Hitch View, Illuminated entry, in-Vehicle Trailering System App, IntelliBeam Automatic High Beam on/Off, Lane Departure Warning System, Low tire pressure warning, Memory seat, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Perforated Leather-Appointed Front Outboard Seat Trim, Pickup Box, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Premium audio system: Premium GMC Infotainment System, Radio: AM/FM Stereo with Premium GMC Infotainment System, Rain sensing wipers, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear window defroster, Remote keyless entry, Security system, Speed control, Speed-sensing s Price after all Rebates. Price does not include Tax, Title, Registration, Document Fees. Customer must qualify for rebate. See Dealer for Details. Customer may qualify for additional rebate
New 2026 GMCSierra 2500 HD SLT
- Diesel
- Exterior Color
- Summit White
- Interior Color
- Jet Black, Perforated Leather-appointed front outb
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- 6.6L Duramax Turbo-Diesel V8 engine
- VIN
- 1GT4UNEY0TF159068
- Stock Number
- G26846
GMC
Sierra 2500 HD
Included Packages & Accessories
Dealer Notes
KBB.com Consumer Reviews

Overall3.8Out of 5
- 2.0
Transmission trash
By Jason | on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk… - 3.0
Infotainment system unreliable!
By Brian C | on Friday, June 27, 2025
The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another.… - 5.0
Fantastic truck
By Jjj | on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!…
Based on 13 consumer ratings for 2020–2026 models. | Privacy
Tax, title, license and dealer fees (unless itemized above) are extra. Not available with special finance or lease offers. MPG estimates on this website are EPA estimates; your actual mileage may vary. For used vehicles, MPG estimates are EPA estimates for the vehicle when it was new. The EPA periodically modifies its MPG calculation methodology; all MPG estimates are based on the methodology in effect when the vehicles were new (please see the ?Fuel Economy? portion of the EPA?s website for details, including a MPG recalculation tool). The features and options listed are for the new 2020 GMC Sierra 1500 and may not apply to this specific vehicle. Tax, title, license (unless itemized above) are extra. Not available with special finance, lease and some other offers.
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