New 2026 GMCSierra 3500HD Pro
- Exterior Color
- Summit White
- Interior Color
- Jet Black
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4USEY8TF129394
- Stock Number
- TF129394
Highlighted Features
- Lane departure
- Premium audio system
- Wireless phone connectivity
- Exterior parking camera rear
- Auto high-beam headlights
- Split folding rear seat
- Perimeter/approach lights
- Remote keyless entry
- Fully automatic headlights
- Trailer sway control
Included Packages & Accessories
- Convenience Package
- Snow Plow Prep/Camper Package
- Suspension Package
- 6 Speakers
- 6-Speaker Audio System Feature
- AM/FM radio
- Premium audio system: GMC Infotainment System
- Radio: AM/FM w/GMC Infotainment System
- Air Conditioning
- Electric Rear-Window Defogger
- 120-Volt Instrument Panel Power Outlet
- 4-Way Manual Driver Seat Adjuster
- Power steering
- Power windows
- Push Button Start
- Remote Keyless Entry
- Remote keyless entry
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Emergency communication system: OnStar Services capable
- EZ Lift Power Lock & Release Tailgate
- Front anti-roll bar
- Front wheel independent suspension
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Pickup Bed
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Exterior Parking Camera Rear
- Auto High-beam Headlights
- Delay-off headlights
- Fully automatic headlights
- Panic alarm
- Speed control
- 2-Speed Electronic Shift Transfer Case
- 220 Amp Alternator
- Heavy-Duty 80 Amp-Hr Battery
- Bumpers: chrome
- Chrome Grille w/Flat Black Grille Insert Bars
- IntelliBeam Automatic High Beam On/Off
- LED Cargo Area Lighting
- Outside Power-Adjustable Black Mirrors
- Rear step bumper
- Spray-On Pickup Bedliner
- 2 Charge/Data USB Ports
- Automatic Emergency Braking
- Buckle to Drive
- Compass
- Driver door bin
- Following Distance Indicator
- Forward Collision Alert
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- Front Pedestrian Braking
- Front reading lights
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear reading lights
- Tachometer
- Tilt steering wheel
- Trip computer
- Voltmeter
- Wireless Phone Projection
- 4-Way Manual Passenger Seat Adjuster
- Split folding rear seat
- Vinyl Seat Trim
- Front Center Armrest w/Storage
- Passenger door bin
- Wheels: 18" Silver 8-Spoke Painted Steel
- Deep-Tinted Glass
- Solar Absorbing Tinted Glass
- Variably intermittent wipers
- Bluetooth
- Apple carplay
- Android auto
- Back-up camera
- Tow package
- 4X4
- Remote start
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Driver door bin
- 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: 275/70SR18.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 275/70SR18.0E
- Single rear wheels
- Tires: all-terrain
- Wheel size: 18"
- 1st row LCD monitors: 1
- Premium audio system: GMC Infotainment System
- Primary LCD size: 7.0"
- Smart device integration
- Speakers: 6
- Wireless phone connectivity
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Front center armrest: w/storage
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Split folding rear seat
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 284mm (11.2")
- Bumpers: chrome
- Hitch Class: IV
- Left rear passenger door: conventional
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,054mm (80.9")
- Exterior length: 6,369mm (250.8")
- 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")
- 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")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: analog
- Auto high-beam headlights
- Compass
- Delay-off headlights
- Exterior parking camera rear
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- 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: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Traction control
Dealer Notes
Recent Arrival! Bluetooth, Apple carplay, Android auto, Back-up camera, Tow package, 4X4, Remote start, Sierra 3500HD Pro, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Summit White, Vinyl, 220 Amp Alternator, Convenience Package, Deep-Tinted Glass, Electric Rear-Window Defogger, EZ Lift Power Lock & Release Tailgate, LED Cargo Area Lighting, Outside Power-Adjustable Black Mirrors, Snow Plow Prep/Camper Package, Suspension Package. Price includes: $500 - Buick & GMC Consumer Cash Program. Exp. 09/30/2025
KBB.com Consumer Reviews
- 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc on Friday, January 22, 2021
Pulling a conventional 10,000 lb trailer over mountain passes is a whole new experience. Staying at the speed limit up long steep grades did not change the engine temperature. I feathered the accelerator up the mountain. The new 10 speed transmission is so smooth you cant feel it changing gears. This is my second GMC Denali Duramax, first being a 2016. I debated trading in for over a year, and am so happy I made the trade. Trailers always exceed by far the tongue weight posted on them, and in my case it came in at 1450 lbs. That exceeded my trucks posted maximum. The 2020 dually posts a 2,000 lb tongue weight, so now I can front load the trailer, and that reduces sway. If you can afford it, and have a heavy trailer, buy the truck! - 5.0
Love our truck
By Ron on Friday, December 11, 2020
The truck doesn’t have a sun roof which it was suppose to have - 2.0
In shop for 13 weeks so far!
By Whip on Monday, September 09, 2024
My truck has been in the shop for 13 weeks to this point with no end in sight. The Infotainment panel blew out which controls pretty much everything. Nice truck except if something goes wrong then, good luck! I would recommend looking at Fords and Rams and ask the question, how many vehicles do you have in your shop waiting for parts and for how long. I heard of one at my GMC dealership that has been waiting for 8 months! Only thing I get from GM is "we understand your frustration". Apparently they don't, or I would have my truck back long ago.
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