2021 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.6L
Cayenne Red Tintcoat
4WD
Diesel
58,986 Miles
Jet Black w/Kalahari Accents
25YUK42B
1GT49VEY4MF313980
3500
Leather
AT4
Estimated Payment
$0 / month
About This 2021 GMC Sierra
Vehicle Details
For sale in Tullahoma, TN: a powerful 2021 GMC Sierra 3500 AT4 4WD with the robust V8 6.6L diesel—built for towing, heavy-duty work, and long-haul comfort. This GMC Sierra 3500 AT4 combines rugged capability with premium features like leather seats, automatic climate control, and Apple CarPlay for seamless connectivity on every drive. The heated steering wheel and steering wheel audio controls add convenience for cold mornings and hands-on comfort while you listen or take calls. With 4WD and the reliable diesel V8, this truck delivers exceptional torque, strong towing capacity, and improved fuel efficiency for its class. The AT4 package brings off-road-ready suspension and styling cues that stand out on job sites and weekend adventures. Inside, the cabin is refined with leather-appointed seating and modern tech integration via Apple CarPlay, making long trips more enjoyable and productive. Located in Tullahoma, TN, this 2021 GMC Sierra 3500 AT4 is priced to sell and offers the best price in the area—don't miss a competitively priced heavy-duty pickup that pairs performance with comfort. Schedule a test drive today to experience the diesel V8 power, 4WD capability, and premium amenities firsthand. Financing options available.
Equipment
This vehicle keeps you comfortable with Auto Climate. This vehicle features steering wheel audio controls. This vehicle is pure luxury with a heated steering wheel. Protect this 1 ton pickup from unwanted accidents with a cutting edge backup camera system. Our dealership has already run the CARFAX report and it is clean. A clean CARFAX is a great asset for resale value in the future. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. An off-road package is installed on this model so you are ready for your four-wheeling best. This 2021 GMC Sierra 3500 comes equipped with Android Auto for seamless smartphone integration on the road. This unit features a hands-free Bluetooth phone system. It offers Apple CarPlay for seamless connectivity. This model has four wheel drive capabilities. Set the temperature exactly where you are most comfortable in the vehicle. The fan speed and temperature will automatically adjust to maintain your preferred zone climate.
Packages
Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (first Row); Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Painted Black Surround Grille with High Gloss Black Mesh; Compass Located in Instrument Cluster; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; 120-Volt Instrument Panel Power Outlet; Heated Driver & Front Outboard Passenger Seats; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; GMC Connected Access Capable; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; 2nd Row Heated Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; AM/FM Stereo with Premium GMC Infotainment System; Power Rear Windows with Express Down; Red Recovery Hooks; Integrated Trailer Brake Controller; Power Front Windows with Driver Express Up/down; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports Inside Console; Power Door Locks. Snow Plow Prep/camper Package: Skid Plates. Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Bed View Camera with Two Trailer Camera Provisions. 20" Machined Aluminum Wheels. Cayenne Red Tintcoat. Rear Underseat Storage. Bed View Camera with Two Trailer Camera Provisions. LT275/65R20 AT BW Tires. 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.**
For sale in Tullahoma, TN: a powerful 2021 GMC Sierra 3500 AT4 4WD with the robust V8 6.6L diesel—built for towing, heavy-duty work, and long-haul comfort. This GMC Sierra 3500 AT4 combines rugged capability with premium features like leather seats, automatic climate control, and Apple CarPlay for seamless connectivity on every drive. The heated steering wheel and steering wheel audio controls add convenience for cold mornings and hands-on comfort while you listen or take calls. With 4WD and the reliable diesel V8, this truck delivers exceptional torque, strong towing capacity, and improved fuel efficiency for its class. The AT4 package brings off-road-ready suspension and styling cues that stand out on job sites and weekend adventures. Inside, the cabin is refined with leather-appointed seating and modern tech integration via Apple CarPlay, making long trips more enjoyable and productive. Located in Tullahoma, TN, this 2021 GMC Sierra 3500 AT4 is priced to sell and offers the best price in the area—don't miss a competitively priced heavy-duty pickup that pairs performance with comfort. Schedule a test drive today to experience the diesel V8 power, 4WD capability, and premium amenities firsthand. Financing options available.
Equipment
This vehicle keeps you comfortable with Auto Climate. This vehicle features steering wheel audio controls. This vehicle is pure luxury with a heated steering wheel. Protect this 1 ton pickup from unwanted accidents with a cutting edge backup camera system. Our dealership has already run the CARFAX report and it is clean. A clean CARFAX is a great asset for resale value in the future. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. An off-road package is installed on this model so you are ready for your four-wheeling best. This 2021 GMC Sierra 3500 comes equipped with Android Auto for seamless smartphone integration on the road. This unit features a hands-free Bluetooth phone system. It offers Apple CarPlay for seamless connectivity. This model has four wheel drive capabilities. Set the temperature exactly where you are most comfortable in the vehicle. The fan speed and temperature will automatically adjust to maintain your preferred zone climate.
Packages
Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (first Row); Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Painted Black Surround Grille with High Gloss Black Mesh; Compass Located in Instrument Cluster; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; 120-Volt Instrument Panel Power Outlet; Heated Driver & Front Outboard Passenger Seats; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; GMC Connected Access Capable; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; 2nd Row Heated Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; AM/FM Stereo with Premium GMC Infotainment System; Power Rear Windows with Express Down; Red Recovery Hooks; Integrated Trailer Brake Controller; Power Front Windows with Driver Express Up/down; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports Inside Console; Power Door Locks. Snow Plow Prep/camper Package: Skid Plates. Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Bed View Camera with Two Trailer Camera Provisions. 20" Machined Aluminum Wheels. Cayenne Red Tintcoat. Rear Underseat Storage. Bed View Camera with Two Trailer Camera Provisions. LT275/65R20 AT BW Tires. 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.**
Features & Options
- Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (first Row); Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Painted Black Surround Grille with High Gloss Black Mesh; Compass Located in Instrument Cluster; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; 120-Volt Instrument Panel Power Outlet; Heated Driver & Front Outboard Passenger Seats; X31 Off-Road Package; Premium Front Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Premium Rear Floor Liners with Removable Carpet Insert; GMC Connected Access Capable; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; 2nd Row Heated Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; AM/FM Stereo with Premium GMC Infotainment System; Power Rear Windows with Express Down; Red Recovery Hooks; Integrated Trailer Brake Controller; Power Front Windows with Driver Express Up/down; Ventilated Driver and Front Passenger Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; 4G LTE Wi-Fi Hotspot Capable; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports Inside Console; Power Door Locks
- Snow Plow Prep/camper Package: Skid Plates
- Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Bed View Camera with Two Trailer Camera Provisions
- 20" Machined Aluminum Wheels
- Cayenne Red Tintcoat
- Rear Underseat Storage
- Bed View Camera with Two Trailer Camera Provisions
- LT275/65R20 AT BW Tires
- LED Smoked Amber Roof Marker Lamps
- Apple CarPlay/Android Auto smart device wireless mirroring
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- HD Rear Vision Camera rear mounted camera
- Brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Keyfob remote engine start
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Primary monitor touchscreen
- 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
- Teen Driver restricted driving mode
- Keyless Open/Keyless Start with hands-free access and push button start
- Keyfob window control
- Bluetooth wireless audio streaming
- Hitch Guidance with Hitch View back-up-to-hitch assist
- Pickup box camera
- 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
- Immobilizer
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer Sway Control (TSC) trailer sway control
- Trailer backup assist with visual graphic guidance only
- Premium GMC Infotainment System external memory control
- Internet radio capability
- 6 USB ports
- Power extendable trailer mirrors
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill Start Assist (HSA)
- Automatic climate control
- Rear Seat Reminder rear seat check warning
- LED daytime running lights
- LED brake lights
- LED front fog lights
- Leather and aluminum steering wheel
- BedStep integrated side steps
- EZ Lift
- Easy lower tailgate
- Integrated tailgate step
- Trailer hitch light
- Manual rear child safety door locks
- Heated driver and passenger side door mirrors
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