Basics
Condition
Interior Color
Exterior Color
Drivetrain
Transmission
Fuel
Engine
VIN
Stock Number
Mileage
Features
Entertainment
Premium Sound System
Exterior
Alloy Wheels
Tow Hitch
Safety
Brake Assist
Backup Camera
Stability Control
Convenience
USB Port
Heated Steering Wheel
Keyless Start
Remote Start
Seating
Cooled Seats
Memory Seat
Heated Seats
Leather Seats
Features
- 1st and 2nd row curtain head airbags
- 4 Door
- 4-wheel ABS Brakes
- 6 USB ports
- ABS and Driveline Traction Control
- Anti-theft alarm system
- Apple CarPlay/Android Auto mirroring
- Apple Carplay/Android Auto
- Audio System Premium Brand: GMC Infotainment System
- Audio controls on steering wheel
- Automatic front air conditioning
- Automatic locking hubs
- Bluetooth wireless phone connectivity
- Body-colored bumpers
- Braking Assist
- Bucket front seats
- Center Console: Full with covered storage
- Chrome w/body-color surround grille
- Climate Controlled : Driver and passenger heated
- Clock : Digital
- Coil front spring
- Compass
- Cooled front seats
- Cruise control
- Cruise controls on steering wheel
- Cupholders: Front and rear
- Daytime running lights
- Diameter of tires: 18.0"
- Digital Audio Input
- Door pockets: Driver
- passenger and rear
- Door reinforcement: Side-impact door beam
- Driver airbag
- Driver seat memory
- Driver's side electrochromatic auto-dimming mirrors
- Dual front air conditioning zones
- Dual illuminated vanity mirrors
- Dual reverse tilt mirrors
- Dusk sensing headlights
- Electrochromatic rearview mirror
- Engine immobilizer
- External temperature display
- Fixed antenna
- Floor mats: Rubber w/carpet inserts front and rear
- Fold-up cushion rear seats
- Front Fog Lights
- Front Head Room : 43.0 "
- Front Hip Room: 61.2"
- Front Independent Suspension
- Front Leg Room: 44.5"
- Front Shoulder Room: 66.0"
- Front Stabilizer Bar : Bar
- Front Ventilated disc brakes
- Front and rear reading lights
- Front fog/driving lights
- Front suspension stabilizer bar
- Fuel Capacity: 24.0 gal.
- HD Rear Vision Camera
- Headlights off auto delay
- Heated Front Seats
- Heated driver mirror
- Heated passenger mirror
- Heated steering wheel
- Hitch Guidance
- Independent front suspension classification
- Instrumentation: Low fuel level
- Interior 120v Ac Power Outlet : 1
- Keyless ignition w/ push button start & keyless door entry
- LED Low/High Beam Reflector Headlights
- Leaf rear spring
- Leaf rear suspension
- Leather seat upholstery
- Leather/metal-look steering wheel trim
- Left rear passenger door type: Conventional
- Machined aluminum rims w/ painted accents
- Manual child safety locks
- Memorized Settings for 2 drivers
- Memorized Settings including door mirror(s)
- Memory Seat
- Metal-look dash trim
- Mobile hotspot internet access
- Overall Width: 81.2"
- Overhead console: Mini with storage
- Passenger Airbag
- Power Driver Seat
- Power remote w/tilt down driver mirror adjustment
- Power remote w/tilt down passenger mirror adjustment
- Power retractable mirrors
- Power windows
- Premium Audio System: GMC Infotainment System
- Premium GMC Infotainment System
- Privacy glass: Deep
- Radio Data System
- Rear Head Room: 40.1"
- Rear Hip Room: 60.2"
- Rear Leg Room: 43.4"
- Rear Shoulder Room: 65.2"
- Rear View Camera
- Rear center seatbelt: 3-point belt
- Rear door type: Tailgate
- Rear seats center armrest
- Remote Engine Start : Keyfob remote start
- Remote Keyless Entry
- Remote activated exterior entry lights
- Remote power door locks
- Remote window operation
- Right rear passenger door type: Conventional
- Rigid axle rear suspension
- Seatback storage: 2
- Seatbelt pretensioners: Front
- Short and long arm front suspension
- Side airbag
- Simulated wood/metal-look door trim
- SiriusXM Satellite Radio
- SiriusXM with 360L AM/FM/HD/Satellite
- SiriusXM with 360L Satellite Radio
- Spare Tire Mount Location: Underbody w/crankdown
- Speed-proportional electric power steering
- Split rear bench
- Stability controll with anti-roll
- Steel spare wheel rim
- Suspension class: Off-road
- Tachometer
- Tilt and telescopic steering wheel
- Tire Pressure Monitoring System: Tire specific
- Tires: Prefix: P
- Tires: Profile: 65
- Tires: Speed Rating: S
- Tires: Width: 265 mm
- Total Number of Speakers: 6
- Trailer hitch
- Transmission hill holder
- Trip computer
- Two 12V DC power outlets
- Type of tires: AT
- Urethane shift knob trim
- Variable intermittent front wipers
- Vehicle Emissions: LEV II
- Video Monitor Location: Front
- Wheel Diameter: 18
- Wheel Width: 8.5
Seller's Comments
This 2021 GMC Sierra 1500 AT4 is ready to deliver the capability and refinement you expect from a premium truck.
- 18 x 8.5 Machined Aluminum Wheels
- EcoTec3 6.2L V8 Engine with 10-Speed Automatic
- 4WD with Off-Road Suspension and Hill Descent Control
- Spray-On Pickup Bed Liner with AT4 Logo
- ProGrade Trailering System with Integrated Trailer Brake Controller
- Heated and Ventilated Leather Front Seats
- 10-Way Power Driver and Passenger Seats with Lumbar Support
- Premium GMC Infotainment System with Multi-Touch Display
- Apple CarPlay and Android Auto Integration
- SiriusXM 360L Satellite Radio
- Heated Steering Wheel
- 4G LTE Wi-Fi Hotspot Capable
- HD Rear Vision Camera with Hitch Guidance and Hitch View
- Remote Vehicle Starter System
- Automatic Temperature Control with Dual Front Zone
The exterior presents itself in Dark Sky Metallic, a distinguished finish that complements the truck's commanding stance. The machined aluminum wheels provide both visual appeal and durability, while the body-color surround grille and bumpers create a cohesive, professional appearance. Premium floor liners protect the cabin's perforated leather-appointed seats, which offer heating and ventilation for year-round comfort.
Inside, the climate control system manages temperatures independently for the driver and front passenger, with an electric rear-window defogger ensuring visibility. The steering wheel is heated and features integrated audio controls, while the tilt-telescoping column adjusts to your preferred driving position. The 4.2-inch color display driver information center keeps you informed with trip data, outside temperature, and voltage readings.
The audio system combines the premium GMC Infotainment platform with Apple CarPlay and Android Auto, allowing seamless smartphone integration. SiriusXM 360L satellite radio provides entertainment options beyond traditional AM/FM broadcasts. Twelve speakers distribute sound throughout the cabin, while steering wheel audio controls keep your hands focused on the road.
This AT4 is equipped with the trailering package, featuring an integrated trailer brake controller, hitch guidance with hitch view, and the in-vehicle trailering app—all designed to simplify hauling tasks. Red recovery hooks and the auxiliary external transmission oil cooler provide additional durability and functionality. The ProGrade Trailering System works in concert with the 3.23 rear axle ratio for balanced performance.
The 6.2L V8 powers this truck with a 10-speed automatic transmission, achieving 15 MPG in the city and 19 MPG on the highway. The off-road suspension, auto-locking rear differential, and hill descent control enhance capability across varied terrain, while electronic stability control and traction control work to maintain grip in challenging conditions.
This 2021 Sierra 1500 AT4 represents solid truck engineering with genuine re
961 Commerce Avenue
Longview, Washington 98632
(360) 703-9480
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