Used 2021 GMC Sierra 1500 AT4
68,305 mi.
Vehicle Details
Description
This bold and off-road-ready 2021 GMC Sierra 1500 AT4 4WD Crew Cab is built to perform with rugged style. Dressed in Summit White and accented with a distinctive Jet Black interior with Kalahari trim, it’s powered by the legendary 6.2L EcoTec3 V8 engine paired with a 10-speed automatic transmission—without automatic stop/start for uninterrupted driving performance.
Entertainment & Technology Features:
8″ HD color touchscreen GMC Premium Infotainment System
Wireless Apple CarPlay & Android Auto
Bluetooth® audio streaming with voice recognition
SiriusXM radio capable (subscription required)
OnStar & 4G LTE Wi-Fi hotspot capability
USB ports with SD card reader
ProGrade Trailering System with integrated trailer brake controller
Remote start
Keyless open and start
Added Features
6.2L EcoTec3 V8 Engine (No Auto Stop/Start) – $2,495
AT4 High Clearance Step (Dealer Installed) – $1,095
20″ Machined Aluminum Wheels w/ Carbon Grey Accents – $800
Goodyear Wrangler Territory Tires – $295
Wheel Locks (Set of 4, Dealer Installed) – $75
Credit: Not Equipped w/ Auto Stop/Start – -$50
Credit: Not Equipped w/ HD Radio – -$50
Credit: Not Equipped w/ Heated Rear Seats – -$200
Safety Features
HD Rear Vision Camera
Teen Driver Mode
Tire Pressure Monitoring with Tire Fill Alert
OnStar safety & security capability
Standard Features
Dual-zone automatic climate control
10-way power-adjustable heated and ventilated front bucket seats
Heated leather-wrapped steering wheel
Premium all-weather floor liners
Rear 60/40 folding bench seat with storage
Driver seat and mirror memory system
Mechanical Features
X31 Off-Road Suspension with 2″ factory lift and monotube shocks
Auto-locking rear differential
Skid plates and heavy-duty air filter
2-speed Autotrac transfer case
Hill Descent Control
Stabilitrak with Trailer Sway Control and Hill Start Assist
Trailer brake controller
120V power outlets in cargo Bed and instrument panel
Dual exhaust with premium tips
Why Buy from Tomball Ford?
Transparent pricing and hassle-free financing options
Top-rated customer service and vehicle trade-in process
Certified service technicians and full-service repair center
Family-owned and trusted in the community
Conveniently located with a wide selection of trucks and SUVs
Google Review Spotlight
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“I had an amazing experience buying my truck at Tomball Ford! The staff was friendly, knowledgeable, and never pushy. I love my New Sierra—shoutout to Mike R. for making it all so easy!” – James D., April 2025
Come test drive this powerful 2021 Sierra AT4 today at Tomball Ford! Whether you’re looking for off-road capability, luxury comfort, or advanced towing tech, this truck checks every Box. Visit us today and experience why more drivers choose Tomball Ford!
- SUMMIT WHITE
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHER FRONT SEAT TRIM
- ENGINE, 6.2L ECOTEC3 V8
Standard Features
- Preferred Equipment Group 4SB
- Trailering Package
- 6 Speakers
- 6-Speaker Audio System Feature
- AM/FM radio: SiriusXM with 360L
- Not Equipped w/HD Radio
- Premium audio system: GMC Infotainment System
- Radio data system
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- SiriusXM w/360L
- 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
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel Power Outlet
- Driver Memory
- 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
- Auxiliary External Transmission Oil Cooler
- Heavy-Duty Air Filter
- Not Equipped w/Automatic Stop/Start
- AT4 High Clearance Step (LPO)
- Auto-dimming door mirrors
- Body-Color Surround Grille
- Bumpers: body-color
- Front License Plate Kit
- Heated door mirrors
- LED Cargo Area Lighting
- Power door mirrors
- ProGrade Trailering System
- 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 Prem Floor Liners w/Removable Carpet Insert
- Front reading lights
- GMC Connected Access Capable
- HD Rear Vision Camera
- Heated steering wheel
- Illuminated entry
- Not Equipped w/Heated 2nd Row Outboard Seats
- OnStar & GMC Connected Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Dual USB Charging-Only Ports
- Rear Prem Floor Liners w/Removable Carpet Insert
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front Bucket Seats
- 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
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- Integrated Trailer Brake Controller
- Red Recovery Hooks
- 18″ x 8.5″ Machined Aluminum Wheels
- Alloy wheels
- Wheel Locks (Set of 4) (LPO)
- Wheels: 20″ x 9″ Machined Aluminum
- Deep-Tinted Glass
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
VEHICLE DATA
Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’). © 2025 Chrome Data Solutions, LP. All Rights Reserved. This information is supplied for personal use only and may not be used for any commercial purpose whatsoever without the express written consent of Chrome Data. Chrome Data makes no guarantee or warranty, either expressed or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.
ESTIMATE MPG
EPA mileage ratings are supplied by Chrome Data Solutions, LP for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.
Based on 2019 EPA mileage ratings. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery-pack age/condition, and other factors.
PRICING
Vehicle pricing is believed to be accurate. Tax, title and registration are not included in prices shown unless otherwise stated. Manufacturer incentives may vary by region and are subject to change. Vehicle information & features are based upon standard equipment and may vary by vehicle. Monthly payments may be higher or lower based upon incentives, qualifying programs, credit qualifications, residency & fees. No claims, or warranties are made to guarantee the accuracy of vehicle pricing, payments or actual equipment. Call to confirm accuracy of any information.
Manufacturer’s Rebate subject to residency restrictions. Any customer not meeting the residency restrictions will receive a dealer discount in the same amount of the manufacturer’s rebate.
