New 2026 GMCSierra 2500 HD Pro
- Exterior Color
- Summit White
- Interior Color
- Jet Black, Cloth seat trim
- Body/Seating
- Truck/6 seats
- Transmission
- Automatic
- Drivetrain
- RWD
- Engine
- 6.6L V8 Gas engine
- VIN
- 1GT1HLE77TF261034
- Stock Number
- G261684
Highlighted Features
- Lane departure
- Emergency communication system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera rear
- Auto high-beam headlights
- Auto-dimming rearview mirror
- Split folding rear seat
- Perimeter/approach lights
- Remote keyless entry
- Fully automatic headlights
- Heated door mirrors
Included Packages & Accessories
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Driver door bin
- Emergency communication system: OnStar
- Front beverage holders
- Illuminated entry
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: push button start only
- Rear door bins
- Remote keyless entry
- Speed control
- Tilt steering wheel
- Front anti-roll bar
- Front tires: 245/75SR17.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 245/75SR17.0E
- Single rear wheels
- Wheel size: 17"
- 1st row LCD monitors: 1
- AM/FM radio: SiriusXM
- Primary LCD size: 7.0"
- Satellite radio trial duration with new vehicle purchase (months): 3
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 6
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest: w/storage
- Front seats: bench
- Max seating capacity: 6
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: vinyl
- Split folding rear seat
- Compressor: Not Available
- Cylinder configuration: V-8
- Drive type: rear-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 401hp @ 5,200RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 16
- Rear locking differential
- Recommended fuel: Regular Unleaded
- Standard fuel economy fuel type: gasoline
- Torque: 464 lb.-ft. @ 4,000RPM
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 256mm (10.1")
- Auto-dimming door mirrors
- Bumpers: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Turn signal indicator mirrors
- Compression ratio: 10.80 to 1
- Curb weight: 3,086kg (6,803lbs)
- Engine bore x stroke: 103.3mm x 98.0mm (4.07" x 3.86")
- Engine displacement: 6.6 L
- Engine torque: 464 lb.-ft. @ 4,000RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,776mm (266.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- GVWR: 4,536kg (10,000lbs)
- Payload: 1,566kg (3,453lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Towing capacity: 7,257kg (16,000lbs)
- Turning radius: 8.7m (28.5')
- Wheelbase: 4,369mm (172.0")
- Appearance: analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Delay-off headlights
- Exterior parking camera rear: HD Rear Vision Camera yes
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: Front and Rear Park Assist front and rear
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Tracker system: Stolen Vehicle Assistance
- Traction control
Dealer Notes
2026 GMC Sierra 2500HD Pro Summit White 6.6L V810-Speed Automatic, Jet Blk Clth Vinyl.This vehicle has the following features:1SA Pro Safety Plus Package (Auto-Dimming Inside Rear-View Mirror, Lane Change Alert with Side Blind Zone Alert, Perimeter Lighting, Power-Adjustable Black Outside Mirrors, Rear Cross Traffic Alert, and Ultrasonic Front and Rear Park Assist), Convenience Package (Deep-Tinted Glass, Electric Rear-Window Defogger, EZ Lift Power Lock and Release Tailgate, and LED Cargo Area Lighting), Suspension Package, 10-Speed Automatic, Jet Blk Clth Vinyl, 120-Volt Instrument Panel Power Outlet, 2 Charge/Data USB Ports, 3.73 Rear Axle Ratio, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio, Apple CarPlay/Android Auto, Auto High-beam Headlights, Automatic Emergency Braking, Brake assist, Buckle to Drive, Bumpers: chrome, Chrome Grille with Flat Black Grille Insert Bars, Compass, Delay-off headlights, Driver door bin, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar, Following Distance Indicator, Forward Collision Alert, Front 40/20/40 Split-Bench Seats, Front anti-roll bar, Front Center Armrest w/Storage, Front Pedestrian Braking, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Heavy-Duty 80 Amp Battery, Illuminated entry, IntelliBeam Automatic High Beam on/Off, Lane Departure Warning System, Low tire pressure warning, Occupant sensing airbag, OnStar Services Capable, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pickup Box, Power steering, Power windows, Premium audio system: GMC Infotainment System, Push Button Start, Radio: AM/FM with GMC Infotainment System, Rear reading lights, Rear step bumper, Remote Keyless Entry, Remote keyless entry, SiriusXM Trial Subscription, Solar Absorbing Tinted Glass, Speed control, Split folding rear seat, Tachometer, Tilt steering wheel, Traction control, Trip computer, Variably intermittent wipers, Vinyl Seat Trim, Voltmeter, Wheels: 17 Silver Painted Steel, and Wireless Phone Projection. 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 rebates. $1000 - Buick & GMC Consumer Cash Program. Exp. 06/01/2026
KBB.com Consumer Reviews
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.