2021 GMC Sierra AT4
GMC Sierra Details
Automatic
6 Cyl, 3.0L
Onyx Black
4WD
Diesel
40,379 Miles
Jet Black w/Kalahari Accents
289846S
3GTU9EET6MG289846
1500
Leather
AT4
Estimated Payment
$0 / month
About This 2021 GMC Sierra
Vehicle Details
2021 GMC Sierra 1500 AT4 — 4WD, 3.0L Diesel, 40,379 miles. Located in Jacksonville, FL, this rugged luxury pickup pairs serious capability with refined comfort. The turbo diesel 6-cylinder delivers excellent fuel economy and strong low-end torque for towing and hauling, while the AT4 suspension and 4-wheel drive handle trails, construction sites, and wet Florida roads with confidence.
Features you'll appreciate: Heated steering wheel for chilly mornings, Apple CarPlay for seamless smartphone integration, back-up camera for safer parking, cross-traffic alert and lane departure warning to keep you alert on longer drives. The cabin is built for comfort and utility, with durable materials and thoughtful tech that make daily driving easier.
This GMC Sierra 1500 AT4 stands out with a clean service history and low mileage for its model year. Whether you need a capable work truck or a comfortable family hauler with serious off-road chops, this diesel GMC Sierra delivers. Located in Jacksonville, FL, it's competitively priced and advertised as the best price in the area—an exceptional value for buyers seeking power, efficiency, and modern safety features.
Contact us to schedule a test drive or request a vehicle report. Act fast—trucks like this don't last long at this price.
Equipment
Big enough to tow or haul, this GMC Sierra has the space, power and durability for anyone. When you encounter slick or muddy roads, you can engage the four wheel drive on this model and drive with confidence. It has auto-adjust speed for safe following. This unit offers Android Auto for seamless smartphone integration. Apple CarPlay: Seamless smartphone integration for this 1/2 ton pickup - stay connected and entertained on the go! The high efficiency automatic transmission shifts smoothly and allows you to relax while driving. Engulf yourself with the crystal clear sound of a BOSE sound system in this vehicle. See what's behind you with the back up camera on this GMC Sierra. The bed looks great and is protected with a durable surface material. This model is painted with a sleek and sophisticated black color. Maintaining a stable interior temperature in this vehicle is easy with the climate control system. This 1/2 ton pickup warns of approaching vehicles with Cross-Traffic Alert. Easily set your speed in the GMC Sierra with a state of the art cruise control system. Increase or decrease velocity with the touch of a button. This unit has a diesel engine. This model has a 6 Cyl, 3.0L high output engine. Bluetooth technology is built into the vehicle, keeping your hands on the steering wheel and your focus on the road. It is pure luxury with a heated steering wheel. Quickly unlock this unit with keyless entry. It's Lane Departure Warning helps keep you in your lane. Lane Keep Assist in this model helps maintain safe driving by gently steering to stay within the lane. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. Help alleviate lower back pain with the driver seat lumbar support in this 1/2 ton pickup. The installed navigation system will keep you on the right path. An off-road package is installed on this 1/2 ton pickup so you are ready for your four-wheeling best. This 1/2 ton pickup is outfitted with an OnStar communication system. Never get into a cold vehicle again with the remote start feature on the vehicle. The steering wheel audio controls on the vehicle keep the volume and station within easy reach. This 1/2 ton pickup is built for driving comfort with a telescoping wheel. A trailer braking system is already installed on this 2021 GMC Sierra 1500.
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. 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. AT4 Value Package: LT275/65R18C MT BW Tires. 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; 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. Power Sunroof. Onyx Black. LT275/65R18C MT BW Tires. **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, 3.0L Diesel, 40,379 miles. Located in Jacksonville, FL, this rugged luxury pickup pairs serious capability with refined comfort. The turbo diesel 6-cylinder delivers excellent fuel economy and strong low-end torque for towing and hauling, while the AT4 suspension and 4-wheel drive handle trails, construction sites, and wet Florida roads with confidence.
Features you'll appreciate: Heated steering wheel for chilly mornings, Apple CarPlay for seamless smartphone integration, back-up camera for safer parking, cross-traffic alert and lane departure warning to keep you alert on longer drives. The cabin is built for comfort and utility, with durable materials and thoughtful tech that make daily driving easier.
This GMC Sierra 1500 AT4 stands out with a clean service history and low mileage for its model year. Whether you need a capable work truck or a comfortable family hauler with serious off-road chops, this diesel GMC Sierra delivers. Located in Jacksonville, FL, it's competitively priced and advertised as the best price in the area—an exceptional value for buyers seeking power, efficiency, and modern safety features.
Contact us to schedule a test drive or request a vehicle report. Act fast—trucks like this don't last long at this price.
Equipment
Big enough to tow or haul, this GMC Sierra has the space, power and durability for anyone. When you encounter slick or muddy roads, you can engage the four wheel drive on this model and drive with confidence. It has auto-adjust speed for safe following. This unit offers Android Auto for seamless smartphone integration. Apple CarPlay: Seamless smartphone integration for this 1/2 ton pickup - stay connected and entertained on the go! The high efficiency automatic transmission shifts smoothly and allows you to relax while driving. Engulf yourself with the crystal clear sound of a BOSE sound system in this vehicle. See what's behind you with the back up camera on this GMC Sierra. The bed looks great and is protected with a durable surface material. This model is painted with a sleek and sophisticated black color. Maintaining a stable interior temperature in this vehicle is easy with the climate control system. This 1/2 ton pickup warns of approaching vehicles with Cross-Traffic Alert. Easily set your speed in the GMC Sierra with a state of the art cruise control system. Increase or decrease velocity with the touch of a button. This unit has a diesel engine. This model has a 6 Cyl, 3.0L high output engine. Bluetooth technology is built into the vehicle, keeping your hands on the steering wheel and your focus on the road. It is pure luxury with a heated steering wheel. Quickly unlock this unit with keyless entry. It's Lane Departure Warning helps keep you in your lane. Lane Keep Assist in this model helps maintain safe driving by gently steering to stay within the lane. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. Help alleviate lower back pain with the driver seat lumbar support in this 1/2 ton pickup. The installed navigation system will keep you on the right path. An off-road package is installed on this 1/2 ton pickup so you are ready for your four-wheeling best. This 1/2 ton pickup is outfitted with an OnStar communication system. Never get into a cold vehicle again with the remote start feature on the vehicle. The steering wheel audio controls on the vehicle keep the volume and station within easy reach. This 1/2 ton pickup is built for driving comfort with a telescoping wheel. A trailer braking system is already installed on this 2021 GMC Sierra 1500.
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. 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. AT4 Value Package: LT275/65R18C MT BW Tires. 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; 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. Power Sunroof. Onyx Black. LT275/65R18C MT BW Tires. **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
- 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
- AT4 Value Package: LT275/65R18C MT BW Tires
- 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; 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
- Power Sunroof
- Onyx Black
- LT275/65R18C MT BW Tires
- 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
- 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
- Aerial view camera
- Push-button
- 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
- -