2021 GMC Sierra AT4
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GMC Sierra Details
Automatic
V8, 6.2L
Satin Steel Metallic
4WD
Gasoline
89,867 Miles
Jet Black w/Kalahari Accents
25CB4316A
3GTP9EEL5MG305600
1500
Leather
AT4
About This 2021 GMC Sierra
Vehicle Details
Discover rugged luxury with this 2021 GMC Sierra 1500 AT4 4WD, now available in Breaux Bridge, LA. Powered by a potent 6.2L V8 gasoline engine, this GMC Sierra AT4 delivers commanding performance on pavement and superior capability off the beaten path. The Off-Road Package enhances trail-ready capability with specialized suspension and underbody protection, making it perfect for adventure seekers and worksite demands alike. Inside, experience premium comfort and technology including a BOSE stereo system for immersive audio, hands-free Bluetooth connectivity for seamless calls and media, and a heated steering wheel for cold mornings. Advanced driver assistance features like Adaptive Cruise Control add confidence on long highway drives by maintaining safe following distances automatically. This GMC Sierra AT4 blends rugged exterior styling with refined interior amenities—blacked-out accents, a durable bed for hauling gear, and thoughtful convenience features to make every drive enjoyable. Whether towing, hauling, or exploring Louisiana backroads, the 4WD system and robust V8 provide the muscle you need. Located in Breaux Bridge, LA, this 2021 GMC Sierra 1500 AT4 is competitively priced and represents the best price you’ll find for this combination of features and condition. Don’t miss out on this capable, feature-rich pickup that balances luxury and off-road readiness. Contact us today to schedule a test drive and see why this GMC Sierra stands out.
Equipment
See what's behind you with the back up camera on the vehicle. Keep your hands warm all winter with a heated steering wheel in this GMC Sierra . Bluetooth technology is built into this 1/2 ton pickup, keeping your hands on the steering wheel and your focus on the road. This GMC Sierra features a high end BOSE stereo system. This GMC Sierra offers Apple CarPlay for seamless connectivity. You'll never again be lost in a crowded city or a country region with the navigation system on this vehicle. An off-road package is installed on this model so you are ready for your four-wheeling best. This 1/2 ton pickup has a clean CARFAX vehicle history report. The steering wheel audio controls on this GMC Sierra keep the volume and station within easy reach. The vehicle has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience.
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; 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; 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 High Clearance Step. Power Sunroof. 20" X 9" Machined Aluminum Wheels. Satin Steel Metallic. 275/60R20SL AT BW Tires. Wheel Locks (set of 4). **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.**
Discover rugged luxury with this 2021 GMC Sierra 1500 AT4 4WD, now available in Breaux Bridge, LA. Powered by a potent 6.2L V8 gasoline engine, this GMC Sierra AT4 delivers commanding performance on pavement and superior capability off the beaten path. The Off-Road Package enhances trail-ready capability with specialized suspension and underbody protection, making it perfect for adventure seekers and worksite demands alike. Inside, experience premium comfort and technology including a BOSE stereo system for immersive audio, hands-free Bluetooth connectivity for seamless calls and media, and a heated steering wheel for cold mornings. Advanced driver assistance features like Adaptive Cruise Control add confidence on long highway drives by maintaining safe following distances automatically. This GMC Sierra AT4 blends rugged exterior styling with refined interior amenities—blacked-out accents, a durable bed for hauling gear, and thoughtful convenience features to make every drive enjoyable. Whether towing, hauling, or exploring Louisiana backroads, the 4WD system and robust V8 provide the muscle you need. Located in Breaux Bridge, LA, this 2021 GMC Sierra 1500 AT4 is competitively priced and represents the best price you’ll find for this combination of features and condition. Don’t miss out on this capable, feature-rich pickup that balances luxury and off-road readiness. Contact us today to schedule a test drive and see why this GMC Sierra stands out.
Equipment
See what's behind you with the back up camera on the vehicle. Keep your hands warm all winter with a heated steering wheel in this GMC Sierra . Bluetooth technology is built into this 1/2 ton pickup, keeping your hands on the steering wheel and your focus on the road. This GMC Sierra features a high end BOSE stereo system. This GMC Sierra offers Apple CarPlay for seamless connectivity. You'll never again be lost in a crowded city or a country region with the navigation system on this vehicle. An off-road package is installed on this model so you are ready for your four-wheeling best. This 1/2 ton pickup has a clean CARFAX vehicle history report. The steering wheel audio controls on this GMC Sierra keep the volume and station within easy reach. The vehicle has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience.
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; 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; 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 High Clearance Step. Power Sunroof. 20" X 9" Machined Aluminum Wheels. Satin Steel Metallic. 275/60R20SL AT BW Tires. Wheel Locks (set of 4). **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; 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; 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 High Clearance Step
- Power Sunroof
- 20" X 9" Machined Aluminum Wheels
- Satin Steel Metallic
- 275/60R20SL AT BW Tires
- Wheel Locks (set of 4)
- 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 brake assist system
- Cruise control with steering wheel mounted controls
- Ventilated driver and front passenger seats
- Integrated navigation system
- Keyfob remote engine 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
- 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 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
- Internet radio capability
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