2021 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 6.2L
Summit White
4WD
Gasoline
71,636 Miles
Jet Black w/Kalahari Accents
24190
1GTP9EEL2MZ453736
1500
Leather
AT4
Estimated Payment
$0 / month
About This 2021 GMC Sierra
Vehicle Details
2021 GMC Sierra 1500 AT4 4WD — V8 6.2L, located in Westport MA. This rugged premium pickup delivers power and capability with a proven 6.2L V8 gasoline engine and four-wheel drive for confident performance in any condition. The AT4 trim adds off-road-tuned suspension, durable styling, and upscale features that make this GMC Sierra both comfortable and capable. Premium comfort and convenience include a heated steering wheel for cold mornings, Android Auto for seamless smartphone integration, and a back-up camera to simplify parking and hitching. Advanced safety tech features adaptive cruise control and lane keep assist to help reduce driver fatigue and enhance highway confidence. This GMC Sierra 1500 AT4 is an exceptional value — we’re offering the best price in Westport MA on this high-demand model. Well-maintained and ready for work, weekend adventures, or daily driving, it pairs V8 towing strength with modern driver aids and connectivity. Search “2021 GMC Sierra 1500 AT4 Westport MA” to find this specific listing and compare prices — you’ll see why this is the best-priced option in the area. Schedule a test drive today to experience the powerful 6.2L engine, refined interior, and off-road capability of the GMC Sierra 1500 AT4. Financing options available.
Equipment
An off-road package is equipped on this vehicle. Bluetooth technology is built into it, keeping your hands on the steering wheel and your focus on the road. This 1/2 ton pickup offers Android Auto for seamless smartphone integration. This 1/2 ton pickup warns of approaching vehicles with Cross-Traffic Alert. This 1/2 ton pickup stays safely in its lane with Lane Keep Assist. The installed navigation system will keep you on the right path. 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 unit . The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. This unit has auto-adjust speed for safe following. Never get into a cold vehicle again with the remote start feature on this 2021 GMC Sierra 1500. See what's behind you with the back up camera on this model.
Packages
Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Perimeter Lighting; Lane Change Alert with Side Blind Zone Alert. Driver Alert Package II: Forward Collision Alert; Lane Keep Assist with Lane Departure Warning; Front Pedestrian Braking; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Adaptive Cruise Control. 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. Technology Package: 8" Driver Information Center; HD Surround Vision with 2 Trailer View Camera Provisions; Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror. 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; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; Duramax 3.0L Turbo-Diesel I6 Engine; 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; Premium GMC Infotainment System Radio with Multi-Touch; 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. Power Sunroof. 20" X 9" Machined Aluminum Wheels. Rear Underseat Storage. Power-Adjustable Vertical Trailering Outside Mirrors. 275/60R20SL AT BW Tires. Cargo Tie-Downs (4). Wheel Locks (set of 4). Trailer Tire Pressure Monitor System. **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 — V8 6.2L, located in Westport MA. This rugged premium pickup delivers power and capability with a proven 6.2L V8 gasoline engine and four-wheel drive for confident performance in any condition. The AT4 trim adds off-road-tuned suspension, durable styling, and upscale features that make this GMC Sierra both comfortable and capable. Premium comfort and convenience include a heated steering wheel for cold mornings, Android Auto for seamless smartphone integration, and a back-up camera to simplify parking and hitching. Advanced safety tech features adaptive cruise control and lane keep assist to help reduce driver fatigue and enhance highway confidence. This GMC Sierra 1500 AT4 is an exceptional value — we’re offering the best price in Westport MA on this high-demand model. Well-maintained and ready for work, weekend adventures, or daily driving, it pairs V8 towing strength with modern driver aids and connectivity. Search “2021 GMC Sierra 1500 AT4 Westport MA” to find this specific listing and compare prices — you’ll see why this is the best-priced option in the area. Schedule a test drive today to experience the powerful 6.2L engine, refined interior, and off-road capability of the GMC Sierra 1500 AT4. Financing options available.
Equipment
An off-road package is equipped on this vehicle. Bluetooth technology is built into it, keeping your hands on the steering wheel and your focus on the road. This 1/2 ton pickup offers Android Auto for seamless smartphone integration. This 1/2 ton pickup warns of approaching vehicles with Cross-Traffic Alert. This 1/2 ton pickup stays safely in its lane with Lane Keep Assist. The installed navigation system will keep you on the right path. 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 unit . The leather seats in the GMC Sierra are a must for buyers looking for comfort, durability, and style. This unit has auto-adjust speed for safe following. Never get into a cold vehicle again with the remote start feature on this 2021 GMC Sierra 1500. See what's behind you with the back up camera on this model.
Packages
Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Perimeter Lighting; Lane Change Alert with Side Blind Zone Alert. Driver Alert Package II: Forward Collision Alert; Lane Keep Assist with Lane Departure Warning; Front Pedestrian Braking; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Adaptive Cruise Control. 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. Technology Package: 8" Driver Information Center; HD Surround Vision with 2 Trailer View Camera Provisions; Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror. 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; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; Duramax 3.0L Turbo-Diesel I6 Engine; 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; Premium GMC Infotainment System Radio with Multi-Touch; 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. Power Sunroof. 20" X 9" Machined Aluminum Wheels. Rear Underseat Storage. Power-Adjustable Vertical Trailering Outside Mirrors. 275/60R20SL AT BW Tires. Cargo Tie-Downs (4). Wheel Locks (set of 4). Trailer Tire Pressure Monitor System. **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
- Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Perimeter Lighting; Lane Change Alert with Side Blind Zone Alert
- Driver Alert Package II: Forward Collision Alert; Lane Keep Assist with Lane Departure Warning; Front Pedestrian Braking; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Adaptive Cruise Control
- 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
- Technology Package: 8" Driver Information Center; HD Surround Vision with 2 Trailer View Camera Provisions; Multicolor 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror
- 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; Auxiliary External Transmission Oil Cooler; Heavy-Duty Air Filter; Skid Plates; Compass; Duramax 3.0L Turbo-Diesel I6 Engine; 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; Premium GMC Infotainment System Radio with Multi-Touch; 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
- Power Sunroof
- 20" X 9" Machined Aluminum Wheels
- Rear Underseat Storage
- Power-Adjustable Vertical Trailering Outside Mirrors
- 275/60R20SL AT BW Tires
- Cargo Tie-Downs (4)
- Wheel Locks (set of 4)
- Trailer Tire Pressure Monitor System
- Apple CarPlay/Android Auto smart device mirroring
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Lane Keep Assist with Lane Departure Warning
- Adaptive cruise control
- Head-up display
- 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
- 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
- EcoTec3 6.2L V-8 gasoline direct injection
- variable valve control
- premium unleaded
- engine with cylinder deactivation and 420HP
- Front wireless smart device charging
- Teen Driver restricted driving mode/alerts
- Smart key with hands-free access and push button start
- Keyfob window control
- Aerial view camera
- Video-feed rearview mirror
- Bluetooth wireless audio streaming
- 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
- GMC ProGrade Trailering System 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 (TSC) trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Premium GMC Infotainment System external memory control
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