
Used 2021 GMCSierra 2500 HD Denali
- Exterior Color
- White Frost Tricoat
- Interior Color
- Dark Walnut/Dark Ash Grey
- Odometer
- 50,103 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Transmission
- 10-speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT49REY8MF118469
- Stock Number
- 3P691
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
- Front dual zone A/C
Included Packages & Accessories
- Technology Package: Multicolor 15 Diagonal Head-Up Display; Inside Rearview Auo-Dimming Rear Camera Mirror
- Denali Ultimate Package: Power Sunroof
- Preferred Equipment Group 5SA: LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (1st Row); Power Sliding Rear Window with Defogger; Safety Alert Seat; Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Signature Denali Grille; Bed View Camera with Two Trailer Camera Provisions; Compass Located in Instrument Cluster; HD Surround Vision; Electrical Lock Control Steering Column; Driver Alert Package II; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Steering Wheel Audio Controls; Universal Home Remote; Driver Alert Package I; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Box Bed Liner with Denali Logo; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Premium GMC Infotainment System Radio with Navigation; Power Windows with Driver Express Up/down; Heated and Ventilated Front Bucket Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; ProGrade Trailering System; Rear Wheelhouse Liners; 6 Rectangular Chromed Tubular Assist Steps; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Polished Exhaust Tip; Power Door Locks; Chrome Recovery Hooks
- Power Retractable Assist Steps
- White Frost Tricoat
- Power Sunroof
- MulitPro Audio System by Kicker
- Wired Auxiliary Trailer Camera
- Gooseneck/5th Wheel Prep Package
- Console-Mounted Safe
- Hitch Package
- Rear Underseat Storage
- Front Premium Floor Liners with Removable Carpet Insert
- Trailer Tire Pressure Monitor Sensors
- Apple CarPlay/Android Auto smart device wireless mirroring
- Forward Collision Alert with Automatic Braking
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- Rear mounted camera
- Head-up display
- Predictive brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Integrated navigation system with voice activation
- Keyfob remote start
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Primary monitor touchscreen
- Lane Departure Warning
- Rear Cross-Traffic Alert collision warning
- First-row sliding and tilting glass sunroof with express open/close activation sunshade
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- AutoTrac part and full-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 445HP
- Duramax 6.6L V-8
- Front wireless smart device charging
- Teen Driver restricted driving mode/alerts
- Auxiliary camera
- Keyless Open/Keyless Start with hands-free access and push button start
- Keyfob window control
- HD Surround Vision w/Hitch View aerial view camera
- Push-button
- Video-feed rearview mirror
- Bluetooth wireless audio streaming
- Transparent trailer view
- Hitch Guidance vehicle to trailer hitching assist
- Front mounted camera
- Right side camera
- Pickup box camera
- Left side camera
- Lane Change Alert with Side Blind Zone Alert blind spot warning
- Following Distance Indicator
- Trailer tire pressure and temperature sensors
- GMC ProGrade Trailering System trailer light test
- GMC ProGrade Trailering System trailer light malfunction warning
- GMC ProGrade Trailering System trailer theft alarm
- Dual-zone front climate control
- IntelliBeam auto high-beam headlights
- Immobilizer
- Bose speakers
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer sway control
Included Packages & Options
- Power Retractable Assist Steps$1,100
- Power Sunroof$995
- Wired Auxiliary Trailer Camera$595
- Gooseneck/5th Wheel Prep Package$545
- Console-Mounted Safe$295
- Hitch Package$295
- Rear Underseat Storage$275
- Trailer Tire Pressure Monitor Sensors$50
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
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front tires: 275/65SR20.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 275/65SR20.0E
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- Wheel size: 20"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Smart device integration: Android Auto/Apple CarPlay
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Genuine wood console insert
- Genuine wood door panel insert
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- 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
- Ventilated front seats
- 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
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Door mirrors: chrome
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Tailpipe finisher: polished
- Trailer hitch receiver
- Trailer sway control
- Turn signal indicator mirrors
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,352mm (250.1")
- 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: 1,013mm (39.9")
- 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: 4,037mm (158.9")
- Appearance: analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear
- Exterior parking camera right
- Front fog lights
- 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
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Traction control
Dealer Notes
Discover the power and luxury of this 2021 GMC Sierra 2500 Denali 4WD, now available in Rainbow City, AL. Equipped with a robust V8 6.6L Duramax diesel engine, this GMC Sierra 2500 Denali delivers exceptional towing capacity, impressive torque, and long-haul reliability for work or weekend adventures. The premium Denali trim blends capability with upscale features including a BOSE stereo system for rich audio, heated steering wheel for cold mornings, and seamless smartphone integration with Android Auto. Convenience starts before you step inside with Remote Start, and the cabin offers refined comfort and advanced technology throughout. This truck also comes with a CARFAX Clean Report, giving you confidence in its documented history and condition. Whether hauling a trailer, navigating rough terrain with 4WD, or enjoying a comfortable commute, this GMC Sierra 2500 Denali checks every box. Located in Rainbow City, AL, this 2021 GMC Sierra 2500 Denali is priced to move â" we offer the best price for a vehicle of this quality and specification. Don't miss your chance to own a powerful diesel pickup with top-tier amenities and a clean history. Contact us today to schedule a test drive and see why this GMC Sierra is the ideal blend of performance and luxury.
Equipment
The leather seats in it are a must for buyers looking for comfort, durability, and style. This vehicle features a hands-free Bluetooth phone system. An off-road package is installed on the vehicle so you are ready for your four-wheeling best. This model warns of approaching vehicles with Cross-Traffic Alert. Engulf yourself with the crystal clear sound of a BOSE sound system in this vehicle. The vehicle offers Android Auto for seamless smartphone integration. This GMC Sierra has a clean CARFAX vehicle history report. This 2021 GMC Sierra 2500's Lane Departure Warning helps keep you in your lane. Start this model from inside with remote start. Keep your hands warm all winter with a heated steering wheel in this unit . See what's behind you with the back up camera on this model. The installed navigation system will keep you on the right path. Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go!
Packages
Technology Package: Multicolor 15 Diagonal Head-Up Display; Inside Rearview Auo-Dimming Rear Camera Mirror. Denali Ultimate Package: Power Sunroof. Preferred Equipment Group 5SA: LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (1st Row); Power Sliding Rear Window with Defogger; Safety Alert Seat; Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Signature Denali Grille; Bed View Camera with Two Trailer Camera Provisions; Compass Located in Instrument Cluster; HD Surround Vision; Electrical Lock Control Steering Column; Driver Alert Package II; 120-Volt Instrument Panel Power Outlet; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Wireless Charging; X31 Off-Road Package; Steering Wheel Audio Controls; Universal Home Remote; Driver Alert Package I; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Box Bed Liner with Denali Logo; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Premium GMC Infotainment System Radio with Navigation; Power Windows with Driver Express Up/down; Heated and Ventilated Front Bucket Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; ProGrade Trailering System; Rear Wheelhouse Liners; 6 Rectangular Chromed Tubular Assist Steps; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Polished Exhaust Tip; Power Door Locks; Chrome Recovery Hooks. Power Retractable Assist Steps. White Frost Tricoat. Power Sunroof. MulitPro Audio System by Kicker. Wired Auxiliary Trailer Camera. Gooseneck/5th Wheel Prep Package. Console-Mounted Safe. Hitch Package. Rear Underseat Storage. Front Premium Floor Liners with Removable Carpet Insert. Trailer Tire Pressure Monitor Sensors. **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.**
KBB.com Consumer Reviews

- 2.0
Transmission trash
By Jason | on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk… - 5.0
Fantastic truck
By Jjj | on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!… - 3.0
Don't judge a truck by the appearance
By jmil | on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).…
Prices do not include additional fees and costs of closing, including government fees and taxes, any finance charges, any dealer documentation fees, any emissions testing fees or other fees. New vehicle pricing includes all offers and incentives. Tax, Title, and Tags, and Polysteel not included in vehicle prices shown and must be paid by the purchaser. Price may not include genuine OEM or aftermarket accessories. All prices, specifications and availability subject to change without notice. Vehicle price may not include dealer installed equipment. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a Manager at this Dealership. All special internet advertised prices include most current manufacturer rebates, incentives, and allowances specifically for zip code 38834 (including but not limited to: consumer rebates, bonus cash, owner loyalty, trade assist, finance assist, military service, etc.).
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