Used 2021 GMC Sierra 1500 AT4 Crew Cab
10-speed automatic
Vehicle Summary
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Summit White
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Jet Black w/Kalahari Accents
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VIN 1GTU9EET3MZ316663
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Stock # UQ316663
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Condition Used
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Exterior Summit White
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Interior Jet Black w/Kalahari Accents
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Engine 6 Cyl, 3.0L
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Fuel Type Diesel
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Drivetrain 4x4
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Transmission 10-speed automatic
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Location All Things Automotive
Mileage
Miles
MPG FUEL ECONOMY
CITY
HWY
AVG
Performance
HP
Torque
Key Features
Backup Camera
Tow Package
Fog Lights
Side-Impact Air Bags
Bluetooth
Alloy Wheels
Leather Seats
Automatic Climate Control
Cruise Control
Remote Start
Push Start
Keyless Entry
Android Auto
Apple Car Play
Wifi Hotspot
Navigation System
Adaptive Cruise Control
Vehicle Description
Discover a rugged and refined 2021 GMC Sierra 1500 AT4 4WD, now available in McConnellsburg, PA. This striking pickup pairs a smooth 6-cylinder 3.0L diesel engine with off-road-ready AT4 suspension and features designed for confident driving in any condition. With CARFAX 1-Owner history, this GMC Sierra offers proven care and dependable ownership.
Inside, enjoy premium comfort and advanced tech: steering wheel audio controls put entertainment and phone functions at your fingertips, while adaptive cruise control enhances highway convenience and safety. The integrated navigation system guides each journey with clear maps and real-time route direction, and the back-up camera provides reliable rear visibility for parking and trailering.
Built to handle work and weekend adventures, the AT4 trim delivers durable construction, supportive seating, and thoughtful storage solutions for tools and gear. Safety-focused features and modern connectivity make this GMC Sierra a smart choice for families, outdoor enthusiasts, and professional drivers seeking capability without compromise.
Located in McConnellsburg, PA, this 2021 GMC Sierra 1500 AT4 is ready for a test drive. Contact us to schedule a viewing or request more detail about options and service history. Experience diesel torque, refined interior appointments, and off-road confidence in one versatile truck.
Vehicle Features
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Interior
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger 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 metal-look steering wheel
- Manual tilting steering wheel
- Manual telescopic steering wheel
- Vinyl rear seat upholstery
- 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
- Deep tinted windows
- Passenger seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
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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 (TSC) trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Trailer hitch light
- Trailer wiring harness
- Class IV tow rating
- Trailer hitch
- 2 underbody skid plates
- Spray-in pickup bed liner
- Pickup bed extender
- 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
- Body-colored front bumper
- Body-colored rear bumper
- Black fender flares
- Black side window trim
- Body-colored door handles
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Mechanical
- AutoTrac part and full-time 4WD
- Auto stop-start engine
- 10-speed automatic
- Tow/Haul Mode selectable mode transmission
- Transmission electronic control
- Sequential shift control
- Automatic
- Four-wheel drive
- Off-road ride suspension
- Speed sensitive power steering
- Lock-up transmission
- Front mounted engine
- Longitudinal mounted engine
- Aluminum engine block
- Aluminum cylinder head
- Overdrive transmission
- 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 coil springs
- Rancho shock absorbers
- Rigid axle rear suspension
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Safety
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Brake assist system
- 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 (HSA)
- 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
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Entertainment
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- Premium GMC Infotainment System external memory control
- Internet radio capability
- GMC Infotainment System voice activated audio controls
- 2 total number of 1st row displays
- 8 inch primary display
- Seek scan
- Radio data system (RDS)
- Auxiliary input jack
- 3 month satellite trial subscription
- Fixed audio antenna
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Crash Safety Ratings
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OVERALL
4 STAR
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FRONT
4 STAR
SIDE
5 STAR
ROLLOVER
4 STAR
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Factory Warranty
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Powertrain warranty
60 month/100,000 miles (FLT)
*Confirm any warranty information with dealer before purchase.Corrosion perforation warranty
72 month/100,000 miles
*Confirm any warranty information with dealer before purchase.Roadside warranty
60 month/100,000 miles (FLT)
*Confirm any warranty information with dealer before purchase.
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Disclaimers
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Used vehicle pricing includes all offers and incentives. Tax, Title and Tags not included in vehicle prices shown and must be paid by the purchaser. Some prices may include manufacturer-to-dealer offers that are not compatible with manufacturer special finance programs and/or lease offers. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with a customer service rep. This is easily done by calling us at {phone} or by visiting us at the dealership.
**With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a {term_used} month term, {interest_used}% interest and {down_payment_used}% down-payment.
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Based on 2021 EPA mileage ratings. Use for comparison purposes only. Your actual mileage will vary depending on how you drive and maintain your vehicle.
All advertised vehicles are subject to actual dealer availability. Certain vehicles listed may not be available, or may have different prices. Prices exclude state tax, license, document preparation fee, smog fee, and finance charges, if applicable. Vehicle option and pricing are subject to change. Prices include all dealer incentives. Pricing and availability varies by dealership. Please check with your dealer for more information. Prices do not include dealer charges, such as advertising, that can vary by manufacturer or region, or costs for selling, preparing, displaying or financing the vehicle. Images displayed may not be representative of the actual trim level of a vehicle. Colors shown are the most accurate representations available. However, due to the limitations of web and monitor color display, we cannot guarantee that the colors depicted will exactly match the color of the car. Information provided is believed accurate but all specifications, pricing, and availability must be confirmed in writing (directly) with the dealer to be binding. Neither the Dealer nor Dealer Venom is responsible for any inaccuracies contained herein and by using this application you the customer acknowledge the foregoing and accept such terms. By clicking "Submit", you agree to All Things Automotive’s Terms of Use and Privacy Policy. You consent to receive phone calls and SMS messages from All Things Automotive to provide updates on your order and/or for marketing purposes. Message frequency depends on your activity. You may opt-out by texting "STOP". Message and data rates may apply.
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