Highlighted Features
- Premium audio system
- Wireless phone connectivity
- Exterior parking camera rear
- Split folding rear seat
- Fully automatic headlights
- Trailer sway control
Included Packages & Accessories
- Wheels: 18" Silver 8-Spoke Painted Steel
- 18" Machined Aluminum Wheels
- Vinyl Seat Trim
- Front License Plate Kit
- LED Smoked Amber Roof Marker Lamps
- Pickup Bed
- Black Assist Step (LPO)
- Hitch Package (LPO)
- Engine Block Heater
- Suspension Package
- Winter Grille Cover
- Auto-Dimming Inside Rear-View Mirror
- Inside Rear-View Auto-Dimming Mirror
- Exhaust Brake
- Heavy-Duty 80 Amp Battery
- 4-Wheel Disc Brakes
- Apple CarPlay/Android Auto
- Premium audio system: GMC Infotainment System
- Front Center Armrest w/Storage
- Front beverage holders
- Variably intermittent wipers
- Trip computer
- Traction control
- Tilt steering wheel
- Split folding rear seat
- Rear step bumper
- Rear reading lights
- Power windows
- Power steering
- Passenger vanity mirror
- Passenger door bin
- Overhead console
- Overhead airbag
- Outside temperature display
- Occupant sensing airbag
- Low tire pressure warning
- Fully automatic headlights
- Front wheel independent suspension
- Front reading lights
- Front anti-roll bar
- Dual front side impact airbags
- Dual front impact airbags
- Driver door bin
- Delay-off headlights
- Bumpers: chrome
- Brake assist
- AM/FM radio
- ABS brakes
- Voltmeter
- Tachometer
- Electronic Stability Control
- Air Conditioning
- 6 Speakers
- Preferred Equipment Group 1SA
- Front 40/20/40 Split-Bench Seats
- Convenience Package
- Radio: AM/FM w/GMC Infotainment System
- Steering Wheel-Mounted Cruise Control
- Electric Rear-Window Defogger
- Bed View Camera
- Spray-On Pickup Bed Liner
- Deep-Tinted Glass
- LED Cargo Area Lighting
- Power-Adjustable Vertical Trailering Mirrors
- X31 Off-Road Package
- Snow Plow Prep/Camper Package
- Integrated Trailer Brake Controller
- Gooseneck/5th Wheel Package
- Gooseneck/5th Wheel Prep Package
- 220 Amp Alternator
- Skid Plates
- Off-Road Suspension
- 4-Way Manual Driver Seat Adjuster
- 4-Way Manual Passenger Seat Adjuster
- Power Rear Windows w/Express Down
- Solar Absorbing Tinted Glass
- Remote Keyless Entry
- Chrome Surround Grille w/Black Mesh
- Hill Descent Control
- 2-Speed Electronic Shift Transfer Case
- Perimeter Lighting
- EZ Lift Power Lock & Release Tailgate
- 6-Speaker Audio System Feature
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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