2021 GMC Sierra AT4
GMC Sierra Details
Automatic
6 Cyl, 3.0L
Onyx Black
4WD
Diesel
139,845 Miles
Jet Black w/Kalahari Accents
MG395102P
3GTU9EET6MG395102
1500
Leather
AT4
About This 2021 GMC Sierra
Vehicle Details
2021 GMC Sierra 1500 AT4 4WD — Diesel power, rugged capability, and premium comfort combine in this exceptional pickup, now available in Fort Payne, AL. Powered by a smooth and efficient 3.0L Duramax 6-cylinder diesel, this GMC Sierra delivers strong torque for towing and highway efficiency, making it perfect for work, weekend adventures, and long-distance driving. The AT4 off-road package adds confidence with 4-wheel drive, skid plates, and a raised suspension for real-world capability. Inside, premium leather seats create a comfortable cabin for driver and passengers, while steering wheel audio controls keep entertainment and calls within easy reach. Built-in navigation guides you confidently to your destination, and seamless smartphone integration through Apple CarPlay keeps apps, messages, and music in sync. A back-up camera enhances safety and makes parking or hitching a trailer simple. This GMC Sierra 1500 AT4 blends refined features with rugged utility: diesel efficiency, capable 4WD performance, upscale interior touches, and reliable technology. Located in Fort Payne, AL, this truck is competitively priced to move — it's priced better than comparable models in the area. Whether towing, hauling, or exploring off the beaten path, this GMC Sierra 1500 AT4 is ready to perform. Contact us today to schedule a test drive and see why this 2021 GMC Sierra is the best-priced, value-packed diesel 4x4 in Fort Payne. Act quickly — a truck like this won't last long.
Equipment
It offers Apple CarPlay for seamless connectivity. Bluetooth technology is built into this unit, keeping your hands on the steering wheel and your focus on the road. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. The installed navigation system will keep you on the right path. Never get into a cold vehicle again with the remote start feature on it. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. See what's behind you with the back up camera on this 1/2 ton pickup. This unit comes equipped with Android Auto for seamless smartphone integration on the road. This vehicle is a certified CARFAX 1-owner. This 1/2 ton pickup features a high end BOSE stereo system. Keep your hands warm all winter with a heated steering wheel in this 1/2 ton pickup . The vehicle offers Automatic Climate Control for personalized comfort.
Packages
Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; 265/65R18SL AT BW Tires; Remote Vehicle Starter System; 2 USB Ports (1st Row); Hill Descent Control; Electric Rear-Window Defogger; Floor-Mounted Center Console; Theft Deterrent System (unauthorized Entry); Body-Color Surround Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Off-Road Suspension; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; 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; 18" X 8.5" Machined Aluminum Wheels; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-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; Auto-Locking Rear Differential; Power Door Locks. AT4 Preferred Package: Premium Bose 7-Speaker Sound System; Power Sliding Rear Window with Rear Defogger; Wireless Charging; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation. Onyx Black. **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.**
2021 GMC Sierra 1500 AT4 4WD — Diesel power, rugged capability, and premium comfort combine in this exceptional pickup, now available in Fort Payne, AL. Powered by a smooth and efficient 3.0L Duramax 6-cylinder diesel, this GMC Sierra delivers strong torque for towing and highway efficiency, making it perfect for work, weekend adventures, and long-distance driving. The AT4 off-road package adds confidence with 4-wheel drive, skid plates, and a raised suspension for real-world capability. Inside, premium leather seats create a comfortable cabin for driver and passengers, while steering wheel audio controls keep entertainment and calls within easy reach. Built-in navigation guides you confidently to your destination, and seamless smartphone integration through Apple CarPlay keeps apps, messages, and music in sync. A back-up camera enhances safety and makes parking or hitching a trailer simple. This GMC Sierra 1500 AT4 blends refined features with rugged utility: diesel efficiency, capable 4WD performance, upscale interior touches, and reliable technology. Located in Fort Payne, AL, this truck is competitively priced to move — it's priced better than comparable models in the area. Whether towing, hauling, or exploring off the beaten path, this GMC Sierra 1500 AT4 is ready to perform. Contact us today to schedule a test drive and see why this 2021 GMC Sierra is the best-priced, value-packed diesel 4x4 in Fort Payne. Act quickly — a truck like this won't last long.
Equipment
It offers Apple CarPlay for seamless connectivity. Bluetooth technology is built into this unit, keeping your hands on the steering wheel and your focus on the road. An off-road package is installed on the GMC Sierra so you are ready for your four-wheeling best. The installed navigation system will keep you on the right path. Never get into a cold vehicle again with the remote start feature on it. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. See what's behind you with the back up camera on this 1/2 ton pickup. This unit comes equipped with Android Auto for seamless smartphone integration on the road. This vehicle is a certified CARFAX 1-owner. This 1/2 ton pickup features a high end BOSE stereo system. Keep your hands warm all winter with a heated steering wheel in this 1/2 ton pickup . The vehicle offers Automatic Climate Control for personalized comfort.
Packages
Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; 265/65R18SL AT BW Tires; Remote Vehicle Starter System; 2 USB Ports (1st Row); Hill Descent Control; Electric Rear-Window Defogger; Floor-Mounted Center Console; Theft Deterrent System (unauthorized Entry); Body-Color Surround Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Off-Road Suspension; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; 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; 18" X 8.5" Machined Aluminum Wheels; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-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; Auto-Locking Rear Differential; Power Door Locks. AT4 Preferred Package: Premium Bose 7-Speaker Sound System; Power Sliding Rear Window with Rear Defogger; Wireless Charging; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation. Onyx Black. **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; 265/65R18SL AT BW Tires; Remote Vehicle Starter System; 2 USB Ports (1st Row); Hill Descent Control; Electric Rear-Window Defogger; Floor-Mounted Center Console; Theft Deterrent System (unauthorized Entry); Body-Color Surround Grille; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; Trailering Package; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seating; Off-Road Suspension; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; GMC Connected Access Capable; Color-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; 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; 18" X 8.5" Machined Aluminum Wheels; Manual Tilt-Wheel and Telescoping Steering Column; Rear Dual USB Charging-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; Auto-Locking Rear Differential; Power Door Locks
- AT4 Preferred Package: Premium Bose 7-Speaker Sound System; Power Sliding Rear Window with Rear Defogger; Wireless Charging; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation
- Onyx Black
- Apple CarPlay/Android Auto smart device mirroring
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Integrated navigation system
- Keyfob remote 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 3L I-6 diesel direct injection
- DOHC
- variable valve control
- intercooled turbo
- diesel
- engine with 277HP
- Duramax 3L I-6 DOHC
- Front wireless smart device charging
- Teen Driver restricted driving mode/alerts
- Smart key with hands-free access and push button start
- Keyfob window control
- Push-button
- Bluetooth wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- 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
- Bose speakers
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer Sway Control (TSC) trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Premium GMC Infotainment System external memory control
- Internet radio capability
- 6 USB ports
- 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 check warning
- 1 exterior 120V AC power outlet
- LED daytime running lights
- LED brake lights
- LED front fog lights
- Leather and metal-look steering wheel
- EZ Lift
- EZ Lower
- Integrated tailgate step
- -










