This 2021 GMC Sierra 1500 AT4 Diesel delivers the capability and refinement you expect from a premium truck built for real-world performance and comfort.
- 3.0L Turbo Diesel I6 engine with 10-speed automatic transmission and 4WD
- 22 city / 26 highway MPG
- ProGrade Trailering System with integrated trailer brake controller
- Premium GMC Infotainment System with Apple CarPlay and Android Auto
- SiriusXM satellite radio with 360L
- 4G LTE Wi-Fi hotspot capable
- Heated and ventilated front seats with leather trim
- 10-way power driver and passenger seats with lumbar support
- Heated steering wheel
- Auto-dimming rear-view mirror and auto-dimming door mirrors
- Off-road suspension with hill descent control
- Auto-locking rear differential
- Spray-on bed liner with AT4 logo
- HD rear vision camera with hitch guidance
The AT4 trim combines rugged capability with thoughtful design. The diesel engine delivers strong torque for towing and payload while maintaining respectable fuel economy. The suspension is engineered for both on-road comfort and off-road confidence, with electronic locking differentials and hill descent control managing challenging terrain. You'll find the 4WD system responsive and reliable whether you're navigating city streets or venturing into rougher country.
Inside, the cabin reflects GMC's commitment to quality. The leather-appointed front seats offer heating and ventilation, adjustable through 10-way power controls with lumbar support. The heated steering wheel and dual-zone automatic climate control ensure year-round comfort. The driver information center provides essential details at a glance, while the infotainment system connects seamlessly with your smartphone through Apple CarPlay and Android Auto. Satellite radio keeps you entertained on long drives.
The trailering package is comprehensiveâ"the integrated trailer brake controller, hitch guidance with hitch view, and in-vehicle trailering app make towing straightforward and secure. Red recovery hooks underscore the truck's readiness for demanding work. The spray-on bed liner protects your cargo area, while power windows and remote starter add daily convenience.
Safety systems include electronic stability control, traction control, ABS braking, and a full complement of airbags. The HD rear vision camera provides clear visibility when reversing. The truck feels solid and secure on the road, with responsive steering and well-tuned suspension absorbing bumps without sacrificing handling.
This Sierra 1500 AT4 Diesel represents a mature, capable truck ready to serve you reliably for years to come. We invite you to schedule a test drive and feel the difference quality engineering makes.
Used 2021 GMCSierra 1500 AT4
- Diesel
- Exterior Color
- Black
- Interior Color
- Jet Black
- Odometer
- 88,116 miles
- Body/Seating
- Truck Crew Cab/5 seats
- Seats
- 5 seats
- Fuel Economy
- 16/21 MPG City/Hwy
- Transmission
- 10-Speed Automatic
- Drivetrain
- 4x4
- Engine
- I-6 cyl
- VIN
- 1GTU9EET7MZ229705
- Stock Number
- B11091
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Ventilated front seats
- Perimeter/approach lights
- Remote keyless entry
- Heated steering wheel
Included Packages & Accessories
- 6 Speakers
- AM/FM radio: SiriusXM with 360L
- Premium audio system: GMC Infotainment System
- Radio data system
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 12-Volt Rear Auxiliary Power Outlet
- Memory seat
- Power driver seat
- Power Front Passenger Windows w/Express Up/Down
- Power Front Windows w/Driver Express Up/Down
- Power Rear Windows w/Express Down
- Power steering
- Power windows
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Auto-Locking Rear Differential
- Electrical Lock Control Steering Column
- Manual Tilt-Wheel & Telescoping Steering Column
- Off-Road Suspension
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- Front anti-roll bar
- Front wheel independent suspension
- Keyless Open & Start
- Low tire pressure warning
- Occupant sensing airbag
- Overhead airbag
- Power Door Locks
- Brake assist
- Electronic Stability Control
- Hill Descent Control
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Panic alarm
- Security system
- Theft Deterrent System (Unauthorized Entry)
- Speed control
- 170 Amp Alternator
- 220 Amp Alternator
- Auxiliary External Transmission Oil Cooler
- Engine Block Heater
- Heavy-Duty Air Filter
- Auto-dimming door mirrors
- Body-Color Surround Grille
- Bumpers: body-color
- Heated door mirrors
- LED Cargo Area Lighting
- Power door mirrors
- Rear step bumper
- Rear Wheelhouse Liners
- Spray-On Pickup Bed Liner w/AT4 Logo
- 2 USB Ports
- 2 USB Ports (1st Row)
- 4.2" Diagonal Color Display Driver Info Center
- 4G LTE Wi-Fi Hotspot Capable
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Color-Keyed Carpeting Floor Covering
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Front reading lights
- GMC Connected Access Capable
- HD Rear Vision Camera
- Heated steering wheel
- Illuminated entry
- OnStar & GMC Connected Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Dual USB Charging-Only Ports
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- Front Center Armrest
- Heated Driver & Front Outboard Passenger Seating
- Heated front seats
- Perforated Leather-Appointed Front Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated Driver & Front Passenger Seats
- Ventilated front seats
- Passenger door bin
- Integrated Trailer Brake Controller
- Red Recovery Hooks
- 18" x 8.5" Machined Aluminum Wheels
- Alloy wheels
- Deep-Tinted Glass
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
- Trailering Package
- 6-Speaker Audio System Feature
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- SiriusXM w/360L
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- ProGrade Trailering System
- Front Prem Floor Liners w/Removable Carpet Insert
- Rear Prem Floor Liners w/Removable Carpet Insert
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front Bucket Seats
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- 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
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Front center armrest
- Front seats: bucket
- Heated front 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
- Cylinder deactivation
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 18mpg
- Fuel economy highway: 21mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 276mm (10.9")
- 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
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,990mm (78.3")
- Exterior length: 5,885mm (231.7")
- 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")
- 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: 3,744mm (147.4")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- 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
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Standard Features
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Driver Memory
- Rear Prem Floor Liners w/Removable Carpet Insert
- 120-Volt Bed Mounted Power Outlet
- 6-Speaker Audio System Feature
- SiriusXM w/360L
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
Dealer Notes
KBB.com Consumer Reviews
All vehicles are one of each. All pre-owned vehicles are used. A dealer documentary service fee of up to $200 may be added to the sale price or capitalized cost. Prices exclude tax, title, and license. All transactions are negotiable including price, trade allowance, interest rate (of which the dealer may retain a portion), term, and documentary service fee. Any agreement is subject to execution of contract documents. It is the customers responsibility to verify the existence and condition of any equipment listed. While great effort is made to ensure the accuracy of the information on this site, errors do occur so please verify information with one our customer service representatives by calling us at (888) 687-0693 or visiting us at our dealership.
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