Meet the 2021 GMC Sierra 1500 AT4â"a truck engineered for drivers who demand capability, comfort, and advanced technology working together seamlessly.
- Power Sunroof
- HD Surround Vision with Trailer View Camera Provisions
- Rear Camera Mirror
- Multicolor 15" Diagonal Head-Up Display
- Premium Bose 7-Speaker Sound System with Navigation
- Adaptive Cruise Control
- Automatic Emergency Braking with Safety Alert Seat
- Lane Keep Assist with Lane Departure Warning
- Heated and Ventilated Front Seats
- 10-Way Power Driver Seat with Lumbar Support
- Spray-On Pickup Bed Liner with AT4 Logo
- ProGrade Trailering System with Integrated Trailer Brake Controller
- Wireless Charging
- Auto-Locking Rear Differential
- IntelliBeam Automatic High Beam Control
This truck combines a 3.0L turbocharged diesel engine with a 10-speed automatic transmission and standard 4WD, delivering 22 city and 26 highway MPGâ"impressive efficiency for a vehicle of this caliber. The gray exterior presents a sharp, professional appearance that maintains its appeal in any setting.
The AT4 package positions this Sierra as a premium off-road capable pickup without sacrificing on-road refinement. You'll find the cabin refined with perforated leather-appointed seating, dual-zone automatic climate control, and a heated steering wheel. The floor-mounted center console and premium floor liners provide both storage and durability for work or weekend adventures.
Technology surrounds you with confidence. The 8" digital driver information center keeps critical data at your fingertips, while SiriusXM with 360L connectivity keeps you entertained across any journey. Apple CarPlay and Android Auto integration means your smartphone connects naturally to the GMC infotainment system. Multiple USB ports, a 120-volt bed-mounted outlet, and wireless charging throughout the cabin ensure your devices remain powered.
Safety systems work actively to protect you and your passengers. Forward collision alert, automatic emergency braking, front pedestrian braking, lane departure warning, rear cross traffic alert, and ultrasonic park assist all contribute to confident driving. The trailering package includes hitch guidance with hitch viewâ"displayed through your camerasâ"and an in-vehicle trailering app to support towing operations.
The truck bed itself is equipped with a spray-on liner bearing the AT4 logo, red recovery hooks for off-road situations, and a power sliding rear window with defogger. LED cargo area lighting illuminates the bed for evening work, while the ProGrade trailering system with integrated brake controller manages towing duties with precision.
This 2021 Sierra AT4 represents a substantial investment in a truck built to perform. Come see it in our showroom and experience the command this vehicle offers.
Used 2021 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Dark Sky Metallic
- Interior Color
- Jet Black With Kalahari Accents
- Odometer
- 128,769 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Seats
- 5 seats
- Fuel Economy
- 22/26 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- 6
- VIN
- 1GTU9EET4MZ242931
- Stock Number
- C3045A
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Power moonroof
- Premium audio system
- Wireless phone connectivity
- Parking sensors
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera right
- Exterior parking camera rear
Included Packages & Accessories
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Garage door transmitter
- Heated steering wheel
- Illuminated entry
- Memory seat
- Moonroof sunshade: manual
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power moonroof
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Premium audio system: Premium GMC Infotainment System
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Speaker type: Bose
- Speakers: 7
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front seats
- Heated rear seats
- Leather upholstery
- Max seating capacity: 5
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Ventilated front seats
- Block heater
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 22mpg
- Fuel economy combined: 24mpg
- Fuel economy highway: 26mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: diesel
- Transmission: 10 speed automatic
- Variable intake manifold
- Variable valve control
- Ground clearance (min): 272mm (10.7")
- Auto-dimming door mirrors
- Bedliner
- Bumpers: body-color
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Skid plates
- Trailer hitch receiver
- Trailer sway control
- Curb weight: 2,508kg (5,530lbs)
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,987mm (78.2")
- Exterior length: 6,126mm (241.2")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- GVWR: 3,221kg (7,100lbs)
- Payload: 699kg (1,540lbs)
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,988mm (157.0")
- Appearance: analog
- Auto high-beam headlights
- Blind spot: Lane Change Alert with Side Blind Zone Alert warning
- Compass
- Delay-off headlights
- Exterior parking camera cargo
- Exterior parking camera front
- Exterior parking camera left
- Exterior parking camera rear
- Exterior parking camera right
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Heads up display
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Parking sensors: UltraSonic front and rear
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Rear collision: Rear Cross-Traffic Alert warning
- Security system
- Traction control
Dealer Notes
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Dealer Processing Fee $449