Summary Welcome to Denny Menholt Frontier Chevrolet. Our team strives to make your next vehicle purchase hassle free.
Vehicle Details Experience commanding capability with this 2021 GMC Sierra 1500 AT4 4x4, located in Billings, MT. Powered by a robust 6.2L V8 gasoline engine and true four-wheel drive, this GMC Sierra AT4 blends rugged performance with refined creature comforts for work or weekend adventures. The exterior features aggressive AT4 styling, off-road-tuned suspension, and premium wheels that enhance both presence and capability on varied terrain.
Inside, enjoy a thoughtfully appointed cabin with technology designed for convenience and connectivity. Apple CarPlay and Hands-Free Bluetooth provide seamless smartphone integration, while Adaptive Cruise Control makes highway driving more relaxed. Safety systems are comprehensive and advanced: Cross-Traffic Alert helps when reversing out of crowded spaces, Lane Departure Warning assists in maintaining lane position, and additional driver aids contribute to confidence behind the wheel.
This GMC Sierra AT4 also includes practical features that support towing and hauling tasks, with a durable bed and smart storage solutions tailored to active lifestyles. Meticulously maintained and ready for immediate use, this truck is ideal for drivers who want a powerful V8, genuine off-road capability, and modern safety and infotainment technologies. Visit our Billings, MT location to see this 2021 GMC Sierra 1500 AT4 4x4 in person and take the next step toward owning a versatile, high-performance pickup.We have inspected the vehicle. It required minimal reconditioning. It is in above average condition. It is clear the previous owner took great care of it. It has had a safety and mechanical inspection completed. The vehicle has very low miles for its year.
Equipment Big enough to tow or haul, this 2021 GMC Sierra 1500 has the space, power and durability for anyone. When you encounter slick or muddy roads, you can engage the four wheel drive on this unit and drive with confidence. This model has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. This vehicle offers Android Auto for seamless smartphone integration. This 1/2 ton pickup offers Apple CarPlay for seamless connectivity. This 1/2 ton pickup has only one previous owner, verified by AutoCheck. This GMC Sierra has a clean AutoCheck report, ensuring its impeccable vehicle history. This GMC Sierra has an automatic transmission. This 2021 GMC Sierra 1500 features a high end BOSE stereo system. 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. Maintaining a stable interior temperature in this 2021 GMC Sierra 1500 is easy with the climate control system. The GMC Sierra's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. The GMC Sierra features cruise control for long trips. It has a V8, 6.2L high output engine. Enjoy the tried and true gasoline engine in this vehicle. The vehicle emanates grace with its stylish gray exterior. This unit features a hands-free Bluetooth phone system. This unit is pure luxury with a heated steering wheel. Quickly unlock this 1/2 ton pickup with keyless entry. This unit's Lane Departure Warning helps keep you in your lane. The vehicle stays safely in its lane with Lane Keep Assist. The leather seats in the vehicle are a must for buyers looking for comfort, durability, and style. Help alleviate lower back pain with the driver seat lumbar support in the vehicle. The installed navigation system will keep you on the right path. An off-road package is installed on it so you are ready for your four-wheeling best. Keep safely connected while in the GMC Sierra with OnStar. You may enjoy services like Automatic Crash Response, Navigation, Roadside Assistance and Hands-Free Calling. Start the vehicle from inside with remote start. The steering wheel audio controls on it keep the volume and station within easy reach. This GMC Sierra has an adjustable telescoping wheel that allows you to achieve a perfect fit for your driving comfort. A trailer braking system is already installed on the GMC Sierra.
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 Centre; HD Surround Vision with 2 Trailer View Camera Provisions; Multi-Colour 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror Preferred Equipment Group 4SB: Perforated Leather-Appointed Front Seat Trim; 2 USB Ports (1st Row); 3.23 Rear Axle Ratio; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Colour Surround Grille; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Colour Display Driver Info Centre; 120-Volt Instrument Panel Power Outlet; Front Bucket Seats; Front Premium Floor Liners with Removable Carpet Insert; 10-Speed Automatic Transmission; Colour-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 7 000 lbs (3 175 Kg) GVWR; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Centre Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; 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 Cat-Back Performance Exhaust 20" X 9" Machined Aluminum Wheels Power Sunroof 6" Rectangular Black Tubular Assist Steps Satin Steel Metallic **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.**
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 Centre; HD Surround Vision with 2 Trailer View Camera Provisions; Multi-Colour 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror,Preferred Equipment Group 4SB: Perforated Leather-Appointed Front Seat Trim; 2 USB Ports (1st Row); 3.23 Rear Axle Ratio; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Colour Surround Grille; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Colour Display Driver Info Centre; 120-Volt Instrument Panel Power Outlet; Front Bucket Seats; Front Premium Floor Liners with Removable Carpet Insert; 10-Speed Automatic Transmission; Colour-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 7,000 lbs (3,175 Kg) GVWR; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Centre Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; 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,Cat-Back Performance Exhaust,20" X 9" Machined Aluminum Wheels,Power Sunroof,6" Rectangular Black Tubular Assist Steps,Satin Steel Metallic,Apple CarPlay/Android Auto smart device wireless mirroring,Pedestrian impact prevention,4G LTE Wi-Fi Hotspot capable mobile hotspot internet access,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,EcoTec3 6.2L V-8 gasoline direct injection, variable valve control, premium unleaded, engine with cylinder deactivation and 420HP,EcoTec3 6.2L V-8,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,Wireless audio streaming,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,Trailer light test,Trailer light malfunction warning,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,Vehicle and trailer reverse assist with visual graphic guidance only,Premium GMC Infotainment System external memory control
Features
• 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 Centre; HD Surround Vision with 2 Trailer View Camera Provisions; Multi-Colour 15" Diagonal Head-Up Display; Bed View Camera; Rear Camera Mirror
• Preferred Equipment Group 4SB: Perforated Leather-Appointed Front Seat Trim; 2 USB Ports (1st Row); 3.23 Rear Axle Ratio; Electric Rear-Window Defogger; Theft Deterrent System (unauthorized Entry); Body-Colour Surround Grille; Heavy-Duty Air Filter; Skid Plates; Compass; 4.2" Diagonal Colour Display Driver Info Centre; 120-Volt Instrument Panel Power Outlet; Front Bucket Seats; Front Premium Floor Liners with Removable Carpet Insert; 10-Speed Automatic Transmission; Colour-Keyed Carpeting Floor Covering; OnStar and GMC Connected Services Capable; Power Front Passenger Windows with Express Up/down; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; Manual Tilt-Wheel and Telescoping Steering Column; HD Rear Vision Camera; LED Cargo Area Lighting; 7
• 000 lbs (3
• 175 Kg) GVWR; Remote Vehicle Starter System; Hill Descent Control; Floor-Mounted Centre Console; 170 Amp Alternator; Auxiliary External Transmission Oil Cooler; Electrical Lock Control Steering Column; Trailering Package; Off-Road Suspension; Steering Wheel Audio Controls; GMC Connected Access Capable; 2-Speed Transfer Case; Deep-Tinted Glass; Spray-On Pickup Bed Liner with AT4 Logo; Red Recovery Hooks; Power Front Windows with Driver Express Up/down; 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
• Cat-Back Performance Exhaust
• 20" X 9" Machined Aluminum Wheels
• Power Sunroof
• 6" Rectangular Black Tubular Assist Steps
• Satin Steel Metallic
• Apple CarPlay/Android Auto smart device wireless mirroring
• Pedestrian impact prevention
• 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
• 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
• EcoTec3 6.2L V-8 gasoline direct injection
• variable valve control
• premium unleaded
• engine with cylinder deactivation and 420HP
• EcoTec3 6.2L V-8
• 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
• Wireless audio streaming
• 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
• Trailer light test
• Trailer light malfunction warning
• 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
• Vehicle and trailer reverse assist with visual graphic guidance only
• Premium GMC Infotainment System external memory control
Are additional discounts or promotions available on this vehicle?
Does this vehicle qualify for any special financing incentives?
Do you have a vehicle like this one that is a better value?
I would like to know more about this vehicle's options
Where is this vehicle located?
Does a warranty exist for this vehicle?
I would like this vehicle but with these options:
Other
Additional rebates may be available that could save you more money!
Some rebates are conditional, so, in the interest of transparency, we don't include them in our Sale Price. Please fill out the form and we will reach out to you to let you know what additional savings may be available.
Please Enter Zip Code To See The Available Rebates In Your Area
