New 2025 GMCSierra 3500 HD SLT
- Exterior Color
- Volcanic Red Tintcoat
- Interior Color
- Dark Walnut/Slate
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UUE77SF363639
- Stock Number
- SF363639
GMC
Sierra 3500 HD
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Wireless phone connectivity
- Exterior parking camera rear
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
Included Packages & Accessories
- Gooseneck/5th Wheel Prep Package
- Preferred Equipment Group 4SA
- Sierra HD Pro Safety Plus Package
- SLT Convenience Package
- SLT Preferred Package
- SLT Premium Package
- Snow Plow Prep/Camper Package
- Suspension Package
- 6 Speakers
- 6-Speaker Audio System Feature
- AM/FM radio: SiriusXM with 360L
- Bose Premium 7-Speaker Sound System
- Radio: AM/FM w/Premium GMC Infotainment System
- SiriusXM w/360L Trial Subscription
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- Memory seat
- Power driver seat
- Power Front Windows w/Passenger Express Up/Down
- Power steering
- Power windows
- Push Button Start
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Universal Home Remote
- Manual Tilt-Wheel/Telescoping Steering Column
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power Sunroof
- Pickup Bed
- Brake assist
- Electronic Stability Control
- Lane Departure Warning System
- Exterior Parking Camera Rear
- Auto High-beam Headlights
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Unauthorized Entry Theft-Deterrent System
- Adaptive Cruise Control
- Speed control
- 2-Speed Active Transfer Case
- 220 Amp Alternator
- Heavy-Duty 80 Amp-Hr Battery
- 6" Rectangular Chromed Tubular Assist Steps
- Auto-dimming door mirrors
- Bumpers: chrome
- Chrome Surround Grille w/Chrome Insert Bars
- Heated door mirrors
- IntelliBeam Automatic High Beam On/Off
- LED Cargo Area Lighting
- LED Smoked Amber Roof Marker Lamps
- Power door mirrors
- Rear step bumper
- Rear Wheelhouse Liners
- Spray-On Pickup Bedliner w/GMC Logo
- Turn signal indicator mirrors
- 2 Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports
- 2 Charge/Data USB Ports Inside Center Console
- Auto-dimming Rear-View mirror
- Automatic Emergency Braking
- Bed View Camera w/2 Trailer Camera Provisions
- Buckle to Drive
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Following Distance Indicator
- Forward Collision Alert
- Front 40/20/40 Split-Bench Seats w/Lockable Storage
- Front Pedestrian Braking
- Front reading lights
- GMC Premium 13.4" Diagonal Information Display
- HD Surround Vision
- Heated steering wheel
- Illuminated entry
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Cross Traffic Alert
- Rear reading lights
- Rear seat center armrest
- Safety Alert Seat
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trailer Camera Provisions
- Trailer Side Blind Zone Alert
- Trip computer
- Ultrasonic Front & Rear Park Assist
- Voltmeter
- Wireless Charging
- Wireless Phone Projection
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver & Front Outboard Passenger Seats
- Heated front seats
- Perf Leather-Appointed Front Outboard Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated Driver & Front Passenger Seats
- Front Center Armrest w/Storage
- Passenger door bin
- Hitch Guidance w/Hitch View
- 18" Machined Aluminum Wheels
- Alloy wheels
- Deep-Tinted Glass
- Front Rain-Sensing Wipers
- Power Sliding Rear Window w/Defogger
- Rain sensing wipers
- Variably intermittent wipers
- 3.73 Rear Axle Ratio
- Navigation
- Bluetooth
- Sunroof
- Leather interior
- Heated seats
- Apple carplay
- Android auto
- Back-up camera
- Tow package
- 4X4
- Remote start
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Smart device integration
- Steering wheel mounted audio controls
- Wireless phone connectivity
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- 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
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 284mm (11.2")
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: 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
- 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: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rain sensing wipers
- 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: mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Dealer Notes
Navigation, Bluetooth, Sunroof, Leather interior, Heated seats, Apple carplay, Android auto, Back-up camera, Tow package, 4X4, Remote start, Sierra 3500HD SLT, 4D Crew Cab, 6.6L V8, 10-Speed Automatic, 4WD, Volcanic Red Tintcoat, Dark Walnut/Slate Leather, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 2 Charge/Data USB Ports, 2 Charge/Data USB Ports Inside Center Console, 2-Speed Active Transfer Case, 220 Amp Alternator, 6-Speaker Audio System Feature, 6" Rectangular Chromed Tubular Assist Steps, Adaptive Cruise Control, Bed View Camera w/2 Trailer Camera Provisions, Bose Premium 7-Speaker Sound System, Chrome Surround Grille w/Chrome Insert Bars, Deep-Tinted Glass, Electric Rear-Window Defogger, Floor-Mounted Center Console, Front Bucket Seats, Front Rain-Sensing Wipers, Gooseneck/5th Wheel Prep Package, HD Surround Vision, Heated 2nd Row Outboard Seats, Heated Driver & Front Outboard Passenger Seats, Keyless Open & Start, LED Cargo Area Lighting, Manual Tilt-Wheel/Telescoping Steering Column, Power Front Windows w/Passenger Express Up/Down, Power Sliding Rear Window w/Defogger, Preferred Equipment Group 4SA, Push Button Start, Rear Cross Traffic Alert, Remote Vehicle Starter System, Safety Alert Seat, Sierra HD Pro Safety Plus Package, SiriusXM w/360L Trial Subscription, SLT Convenience Package, SLT Preferred Package, SLT Premium Package, Snow Plow Prep/Camper Package, Spray-On Pickup Bedliner w/GMC Logo, Steering Wheel Audio Controls, Suspension Package, Trailer Camera Provisions, Trailer Side Blind Zone Alert, Ultrasonic Front & Rear Park Assist, Unauthorized Entry Theft-Deterrent System, Universal Home Remote, Ventilated Driver & Front Passenger Seats, Wireless Charging, Wireless Phone Projection. Price includes: $1000 - Buick & GMC Consumer Cash Program. Exp. 09/02/2025
KBB.com Consumer Reviews

Overall4.2Out of 5
- 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.…
Based on 6 consumer ratings for 2020–2025 models. | Privacy
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