Used 2021 GMC Sierra 2500HD AT4 Crew Cab
4x4
Vehicle Summary
Mileage
Miles
Performance
HP
Torque
Vehicle Description
Vehicle Details
Take command of serious capability with this certified pre-owned 2021 GMC Sierra 2500 AT4 4WD, equipped with the powerful V8 6.6L Diesel engine and built to handle demanding work and weekend adventure alike. Located in Madison, AL, this rugged heavy-duty truck blends bold AT4 styling, premium comfort, and advanced technology in one impressive package. The GMC Sierra 2500 AT4 delivers confident towing, strong hauling, and composed performance on challenging roads, making it an excellent choice for drivers who need true strength with everyday refinement. Inside, you'll enjoy Heated Steering Wheel, Hands Free Bluetooth, Remote Start, and a premium BOSE Stereo for a connected and comfortable ride. Lane Departure Warning adds extra peace of mind on long drives, while the spacious cabin offers the versatility you want in a full-size diesel truck. From its aggressive stance to its durable 4WD capability, this GMC Sierra 2500 AT4 is ready for job sites, road trips, and everything in between. If you are searching for a pre-owned diesel truck in Madison AL with premium features, standout capability, and certified pre-owned confidence, this 2021 GMC Sierra 2500 AT4 deserves your attention. Experience a heavy-duty pickup that works hard and feels refined every mile. Its rugged exterior, bold grille, alloy wheels, and premium AT4 accents create a commanding presence that stands out on city streets, country roads, and construction lots while reinforcing its high-end capability every mile.
Equipment
You'll never again be lost in a crowded city or a country region with the navigation system on this GMC Sierra. Start this model from inside with remote start. Keep your hands warm all winter with a heated steering wheel in this vehicle . This unit features a hands-free Bluetooth phone system. The GMC Sierra comes equipped with Android Auto for seamless smartphone integration on the road. This 2021 GMC Sierra 2500 warns of approaching vehicles with Cross-Traffic Alert. It has gone through a stringent manufacturer pre-owned certification process, including a meticulous mechanical and reconditioning processes. Take the stress out of car buying with this certified pre-owned. The GMC Sierra's Lane Departure Warning helps keep you in your lane. The leather seats in this unit are a must for buyers looking for comfort, durability, and style. See what's behind you with the back up camera on this vehicle. Apple CarPlay: Seamless smartphone integration for the GMC Sierra - stay connected and entertained on the go!The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style.
Packages
AT4 Premium Plus Package: Power Sunroof; 20" Machined Aluminum Wheels. Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Lane Change Alert with Side Blind Zone Alert; Perimeter Lighting. Driver Alert Package II: Forward Collision Alert; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Lane Departure Warning. Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (1st Row); Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Painted Black Surround Grille; Compass Located in Instrument Cluster; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seats; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Box Bed Liner with AT4 Logo; Power Rear Windows with Express Down; Red Recovery Hooks; Integrated Trailer Brake Controller; Power Windows with Driver Express Up/down; Heated and Ventilated Front Bucket Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Power Door Locks. Technology Package: 8" Multicolor Driver Information Center; Multicolor 15" Diagonal Head-Up Display; Inside Rearview Auo-Dimming Rear Camera Mirror. Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Bed View Camera with Two Trailer Camera Provisions. AT4 Preferred Package: HD Surround Vision; Bose Premium 7 Speaker Sound System; Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Wireless Charging; Bed View Camera with Two Trailer Camera Provisions; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation. Power-Retractable Black Assist Steps. Power Sunroof. 20" Machined Aluminum Wheels. Bed View Camera with Two Trailer Camera Provisions. LT275/65R20 AT BW Tires. LED Smoked Amber Roof Marker Lamps. **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.**AT4 Premium Plus Package: Power Sunroof; 20" Machined Aluminum Wheels. Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Lane Change Alert with Side Blind Zone Alert; Perimeter Lighting. Driver Alert Package II: Forward Collision Alert; Following Distance Indicator; Automatic Emergency Braking; Safety Alert Seat; IntelliBeam Automatic High Beam On/off; Lane Departure Warning. Preferred Equipment Group 4SB: HD Rear Vision Camera; LED Cargo Area Lighting; Remote Vehicle Starter System; 2 USB Ports (1st Row); Electric Rear-Window Defogger; Wireless Phone Projection; Floor-Mounted Center Console; Unauthorized Entry Theft-Deterrent System; Painted Black Surround Grille; Compass Located in Instrument Cluster; 4.2" Diagonal Color Display Driver Info Center; Electrical Lock Control Steering Column; 120-Volt Instrument Panel Power Outlet; Heated Driver and Front Outboard Passenger Seats; X31 Off-Road Package; Front Premium Floor Liners with Removable Carpet Insert; Steering Wheel Audio Controls; Rear Premium Floor Liners with Removable Carpet Insert; OnStar and GMC Connected Services Capable; 120-Volt Bed Mounted Power Outlet; Heated 2nd Row Outboard Seats; Power Front Passenger Windows with Express Up/down; 2-Speed Active Transfer Case; Deep-Tinted Glass; Spray-On Pickup Box Bed Liner with AT4 Logo; Power Rear Windows with Express Down; Red Recovery Hooks; Integrated Trailer Brake Controller; Power Windows with Driver Express Up/down; Heated and Ventilated Front Bucket Seats; Manual Tilt-Wheel/telescoping Steering Column; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; ProGrade Trailering System; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; 2 USB Ports; Power Door Locks. Technology Package: 8" Multicolor Driver Information Center; Multicolor 15" Diagonal Head-Up Display; Inside Rearview Auo-Dimming Rear Camera Mirror. Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Bed View Camera with Two Trailer Camera Provisions. AT4 Preferred Package: HD Surround Vision; Bose Premium 7 Speaker Sound System; Power Sliding Rear Window with Defogger; LED Smoked Amber Roof Marker Lamps; Wireless Charging; Bed View Camera with Two Trailer Camera Provisions; Universal Home Remote; Premium GMC Infotainment System Radio with Navigation. Power-Retractable Black Assist Steps. Power Sunroof. 20" Machined Aluminum Wheels. Bed View Camera with Two Trailer Camera Provisions. LT275/65R20 AT BW Tires. LED Smoked Amber Roof Marker Lamps. **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.**
City Auto Chattanooga
Trusted Pre-Owned Car Dealership in Chattanooga, TN
With over 36 years of experience, City Auto remains one of the most trusted names in used car sales in Chattanooga. Our community-based approach, wide inventory, and competitive pricing continue to earn the trust of local customers.
Vehicle Features
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Interior
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
- Dual-zone front climate control
- Automatic climate control
- Leather and aluminum steering wheel
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Vinyl rear seat upholstery
- Rear under seat climate control ducts
- Rear console climate control ducts
- Bucket front seats
- Driver seat with 8-way directional controls
- Front seat center armrest
- Front passenger seat with 8-way directional controls
- Driver seat with 2-way power lumbar
- Front passenger seat with 2-way power lumbar
- Split-bench rear seat
- Fold-up rear seat cushion
- 60-40 folding rear seats
- Rear seat center armrest
- Seating capacity: 5
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Exterior
- 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
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Power extendable trailer mirrors
- Trailer hitch light
- Chrome hub wheel covers
- Exterior mirror LED spot lights
- Trailer wiring harness
- Class IV tow rating
- Trailer hitch
- 3 underbody skid plates
- Spray-in pickup bed liner
- Pickup bed-rail protectors
- Full-size spare tire with steel wheel
- Crank-down spare tire
- 2 front tow hooks
- LED in-box lighting
- 4 doors
- Standard style pickup box
- Galvanized steel/aluminum body panels with side impact beams
- Body-colored front bumper
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Mechanical
- AutoTrac part and full-time 4WD
- Driver selectable steering effort
- Tow/Haul Mode selectable mode transmission
- Transmission electronic control
- Sequential shift control
- Automatic
- Four-wheel drive
- Two-Speed Transfer Case
- Off-road ride suspension
- Digital Steering Assist speed sensitive power steering
- Lock-up transmission
- Front mounted engine
- Longitudinal mounted engine
- Iron engine block
- Aluminum cylinder head
- Overdrive transmission
- Transmission oil cooler
- Powertrain type: ICE
- All-speed ABS and driveline traction control
- Electronic transfer case shift
- Independent front suspension
- Short and long arm front suspension
- Front anti-roll bar
- Front torsion springs
- Rancho gas-pressurized shock absorbers
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Safety
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Teen Driver restricted driving mode/alerts
- Immobilizer
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill start assist
- LED daytime running lights
- LED brake lights
- LED front fog lights
- Manual rear child safety door locks
- 6 airbags
- Driver front impact airbag
- Seat mounted side impact driver airbag
- Curtain first and second-row overhead airbags
- Passenger front impact airbag
- Seat mounted side impact front passenger airbag
- Airbag occupancy sensor
- Reflector headlights
- LED low and high beam headlights
- Auto on/off headlight control
- Delay-off headlights
- Remote activated perimeter approach lighting
- 4-wheel disc brakes
- 4-wheel antilock (ABS) brakes
- Security system
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Entertainment
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- External memory control
- Internet radio capability
- Voice activated audio controls
- AM/FM/digital/SiriusXM with 360Lsatellite
- 2 total number of 1st row displays
- 8 inch primary display
- Seek scan
- Auxiliary input jack
- 3 month satellite trial subscription
- Fixed audio antenna
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Disclaimers
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* Price listed does not include tax, tag, or any government fees. Not responsible for typographical errors, price, or equipment discrepancies. Not responsible for errors in inventory listings on third-party sites. Vehicles listed on this site may have been sold or otherwise removed from inventory. Please call to confirm price and availability.
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