Equipment
See what's behind you with the back up camera on this model. This 2026 GMC Sierra 3500's Lane Departure Warning helps keep you in your lane. This unit has a V8, 6.6L high output engine. Greater towing safety becomes standard with the installed trailer brake. Keep safely connected while in the GMC Sierra with OnStar. You may enjoy services like Automatic Crash Response, Navigation, Roadside Assistance and Hands-Free Calling. This model has four wheel drive capabilities. This unit shines with clean polished lines coated with an elegant white finish. With the keyless entry system on this GMC Sierra you can pop the trunk without dropping your bags from the store. The high efficiency automatic transmission shifts smoothly and allows you to relax while driving. Anti-lock brakes will help you stop in an emergency. This GMC Sierra has a diesel engine. The Electronic Stability Control will keep you on your intended path.
Packages
Preferred Equipment Group 1SA: Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Sierra HD Pro Safety; Wireless Phone Projection; Solar Absorbing Tinted Glass; Push Button Start; Chrome Grille with Flat Black Grille Insert Bars; 2 Charge/data USB Ports. Gooseneck/5th Wheel Prep Package. Black Assist Step. Spray-On Pickup Bedliner. Hitch Package. Electric Rear-Window Defogger. LED Smoked Amber Roof Marker Lamps. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
New 2026 GMCSierra Pro
- Summit White Exterior
- Jet Black Interior
- 10-speed automatic
- 4WD
- V8, 6.6L Engine
- VIN 1GT4USEY6TF107684
- Stock # C26041
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
- Preferred Equipment Group 1SA: Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Sierra HD Pro Safety; Wireless Phone Projection; Solar Absorbing Tinted Glass; Push Button Start; Chrome Grille with Flat Black Grille Insert Bars; 2 Charge/data USB Ports
- Gooseneck/5th Wheel Prep Package
- Black Assist Step
- Spray-On Pickup Bedliner
- Hitch Package
- Electric Rear-Window Defogger
- LED Smoked Amber Roof Marker Lamps
- Forward collision mitigation with pedestrian impact prevention
- Pedestrian impact prevention
- Mobile hotspot internet access
- Rear mounted camera
- Automatic Emergency Braking predictive brake assist system
- Cruise control with steering wheel mounted controls
- Primary monitor touchscreen
- Lane departure warning
- Part-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 470HP
- Teen Driver restricted driving mode/alerts
- Keyfob window control
- Wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- Following distance alert
- Smart key with push button start
- Auto high-beam headlights
- Immobilizer
- OnStar Services capable vehicle integrated emergency SOS system
- Handsfree wireless device connectivity
- Smart device wireless mirroring
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- GMC Infotainment System external memory control
- Internet radio capability
- Electronic stability control system with anti-roll
- Hill Hold Assist
- Rear seat check warning
- LED daytime running lights
- BedStep integrated side steps
- Manual rear child safety door locks
- MyGMC Mobile App mobile app access
- Gauge cluster display size: 3.50
- Manual tilting steering wheel
- Wheel hub covers
- Manual extendable trailer mirrors
- 18 x 8-inch front and rear silver steel wheels
- LT275/70SR18 AT BSW front and rear tires
- Cloth front seat upholstery
- 6 airbags
- Driver front impact airbag
- Seat mounted side impact driver airbag
- Curtain first and second-row overhead airbags
- Passenger front impact airbag
- Seat mounted side impact front passenger airbag
- Airbag occupancy sensor
- Auto-locking doors
- Intercooled turbo
- Allison 10-speed automatic
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): 283mm (11.1")
- 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: 2,049mm (80.7")
- 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")
- 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: 8.7m (28.5')
- Wheelbase: 4,369mm (172.0")
- 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
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.