2021 GMC Sierra AT4
GMC Sierra Details
Automatic
V8, 5.3L
Onyx Black
4WD
Gasoline
86,809 Miles
Jet Black w/Kalahari Accents
M403851
3GTP9EED4MG403851
1500
Leather
AT4
Estimated Payment
$0 / month
About This 2021 GMC Sierra
Vehicle Details
2021 GMC Sierra 1500 AT4 4WD — V8 5.3L, located in Manchester, PA. This rugged, ready-for-anything pickup blends premium comfort with proven capability, and it's offered at the best price in the area. Powered by a strong and reliable 5.3L V8 gasoline engine paired with 4-wheel drive, this GMC Sierra AT4 delivers confident towing, off-road poise, and smooth highway cruising. This GMC Sierra comes loaded with convenience and modern tech: Remote Start for warm or cool cabin comfort before you climb in, a Heated Steering Wheel for cold-weather comfort, and seamless smartphone integration with Android Auto. The interior balances refined materials with durable practicality—perfect for workdays, weekend adventures, or family drives. Buy with confidence: CARFAX 1-Owner and a CARFAX Clean Report ensure transparent vehicle history and care. The AT4 trim adds distinctive styling, off-road capability, and a higher level of standard equipment compared to base models, making this truck an excellent value for buyers seeking capability and comfort. Located in Manchester, PA, this GMC Sierra 1500 AT4 is competitively priced to move quickly. If you want a powerful V8 pickup with modern convenience features, a clean CARFAX history, and the best price in the market, this 2021 GMC Sierra 1500 AT4 4WD is ready to impress. Contact us to schedule a test drive and experience it firsthand.
Equipment
An off-road package is equipped on this GMC Sierra. This 1/2 ton pickup offers Android Auto for seamless smartphone integration. This 1/2 ton pickup has a clean CARFAX vehicle history report. The leather seats in this model are a must for buyers looking for comfort, durability, and style. This model features a hands-free Bluetooth phone system. See what's behind you with the back up camera on this 1/2 ton pickup. Good News! This certified CARFAX 1-owner vehicle has only had one owner before you. This model offers Automatic Climate Control for personalized comfort. Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go! Start this 1/2 ton pickup from inside with remote start. This vehicle is pure luxury with a heated steering wheel. This GMC Sierra features steering wheel audio controls. Greater towing safety becomes standard with the installed trailer brake. Keep safely connected while in this GMC Sierra with OnStar. You may enjoy services like Automatic Crash Response, Navigation, Roadside Assistance and Hands-Free Calling.
Packages
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; 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. 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 — V8 5.3L, located in Manchester, PA. This rugged, ready-for-anything pickup blends premium comfort with proven capability, and it's offered at the best price in the area. Powered by a strong and reliable 5.3L V8 gasoline engine paired with 4-wheel drive, this GMC Sierra AT4 delivers confident towing, off-road poise, and smooth highway cruising. This GMC Sierra comes loaded with convenience and modern tech: Remote Start for warm or cool cabin comfort before you climb in, a Heated Steering Wheel for cold-weather comfort, and seamless smartphone integration with Android Auto. The interior balances refined materials with durable practicality—perfect for workdays, weekend adventures, or family drives. Buy with confidence: CARFAX 1-Owner and a CARFAX Clean Report ensure transparent vehicle history and care. The AT4 trim adds distinctive styling, off-road capability, and a higher level of standard equipment compared to base models, making this truck an excellent value for buyers seeking capability and comfort. Located in Manchester, PA, this GMC Sierra 1500 AT4 is competitively priced to move quickly. If you want a powerful V8 pickup with modern convenience features, a clean CARFAX history, and the best price in the market, this 2021 GMC Sierra 1500 AT4 4WD is ready to impress. Contact us to schedule a test drive and experience it firsthand.
Equipment
An off-road package is equipped on this GMC Sierra. This 1/2 ton pickup offers Android Auto for seamless smartphone integration. This 1/2 ton pickup has a clean CARFAX vehicle history report. The leather seats in this model are a must for buyers looking for comfort, durability, and style. This model features a hands-free Bluetooth phone system. See what's behind you with the back up camera on this 1/2 ton pickup. Good News! This certified CARFAX 1-owner vehicle has only had one owner before you. This model offers Automatic Climate Control for personalized comfort. Apple CarPlay: Seamless smartphone integration for this vehicle - stay connected and entertained on the go! Start this 1/2 ton pickup from inside with remote start. This vehicle is pure luxury with a heated steering wheel. This GMC Sierra features steering wheel audio controls. Greater towing safety becomes standard with the installed trailer brake. Keep safely connected while in this GMC Sierra with OnStar. You may enjoy services like Automatic Crash Response, Navigation, Roadside Assistance and Hands-Free Calling.
Packages
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; 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. 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
- 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; 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
- Onyx Black
- LT275/65R18C MT BW Tires
- 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
- 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
- EcoTec3 5.3L V-8 gasoline direct injection
- variable valve control
- regular unleaded
- engine with cylinder deactivation and 355HP
- EcoTec3 5.3L V-8
- 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
- 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
- Trailer hitch light
- Manual rear child safety door locks
- Heated driver and passenger side door mirrors
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