2021 GMC Sierra 1500 AT4
- VIN: 1GTP9EEL3MZ334819
- Stock: C6222P
2021 GMC Sierra 1500 AT4
VIN: 1GTP9EEL3MZ334819STOCK: C6222P
Basic Info
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Exterior:Cayenne Red Tintcoat
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Drivetrain:4WD
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Interior:Jet Black
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Transmission:10-Speed Automatic
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Engine:V8 Gasoline Fuel
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Fuel Efficiency:15 CITY / 19 HWY
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Mileage:36,594
Key Features
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AWD
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Android Auto
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Apple CarPlay
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Automatic Climate Control
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Backup Camera
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Bluetooth
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Fog Lights
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Power Seats
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Side-Impact Air Bags
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Tow Package
History Report
Notes
2021 GMC Sierra 1500 AT4
This low-mileage and capable 2021 GMC Sierra 1500 AT4 with just 36,593 miles is a full-size crew cab pickup finished in a premium exterior. Powered by a strong V8 engine with 4WD, this AT4 delivers off-road readiness, modern technology, and everyday versatility in a one-owner example that has been freshly serviced with new brake rotors and an oil change.
Recent Service Highlights
- Oil and filter changed (July 31, 2026)
- Front brake rotor(s) replaced (July 31, 2026)
- Rear brake rotor(s) replaced (July 31, 2026)
- Pre-delivery inspection completed (July 2026)
- Interior cleaned and vehicle detailed (July 2026)
Key Features
- AT4 Off-Road trim
- V8 Engine
- 4WD
- MultiPro Tailgate
Technology & Comfort
- GMC Infotainment System
- Premium Audio
- Heated Seats
- Available Ventilated Seats
Performance & Safety
- Off-Road Suspension
- Hill Descent Control
- Advanced Driver Assistance Systems
This low-mileage one-owner 2021 GMC Sierra 1500 AT4 offers capability, comfort, and style for work or adventure.
At Walser, you'll get an exceptional car-buying experience. Our streamlined process means you'll work with one dedicated customer specialist. Upfront Pricing ensures you'll get a great deal with no surprises. Buy with confidence backed by our Worry-Free Return & Exchange Policy.
We include a complimentary WalserCare warranty on most used vehicles, every vehicle gets a comprehensive 190-point inspection, and you receive a free CarFax History Report. There's no better place to get a used performance vehicle.
The best car-buying experience starts right here at Walser.
Vehicle Details
Exterior
- Bumper, front, body-color lower (Front bumper color will be high gloss black.)
- Bumper, rear body-color with corner steps
- CornerStep, rear bumper
- Door handles, body-color
- Fog lamps, LED
- Glass, deep-tinted
- Headlamps, LED reflector (high intensity) with LED turn signals and LED signature Daytime Running Lamps
- Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
- LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
- Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
- Tailgate and bed rail protection caps, top
- Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
- Tailgate, GMC MultiPro Tailgate with six functional load/access features
- Taillamps, LED signature taillight with LED stop and reverse light
- Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
- Tire, spare 265/70R17SL all-season, blackwall
- Tires, 265/65R18SL all-terrain, blackwall
- Wheel, 17 x 8 (43.2 cm x 20.3 cm) full-size, steel spare
- Wheelhouse liners, rear
- Wheels, 18 x 8.5 (45.7 cm x 21.6 cm) machined aluminum with Dark Grey accents
Interior
- 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
- Air conditioning, dual-zone automatic climate control
- Air vents, rear
- Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
- Audio system feature, 6-speaker system
- Audio system, Premium GMC Infotainment System with 8 diagonal color touch-screen, includes multi-touch display, AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (Note: (PZ8) Hitch Guidance with hitch view is included with trim. Includes SiriusXM with 360L.)
- Bluetooth for phone connectivity to vehicle infotainment system
- Brake lining wear indicator
- Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
- Compass, located in instrument cluster
- Cruise control, steering wheel-mounted
- Defogger, rear-window electric
- Door locks, power
- Driver Information Center, 4.2 diagonal color display includes driver personalization
- Driver memory recalls driver presets for power driver seat and outside mirrors
- Exterior Temperature Display, located in radio display
- Floor covering, color-keyed carpeting
- GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)
- HD Radio (Standard on vehicles built before 7-12-2021. Certain vehicles built on or after 7-12-2021 will include (RG0) Not Equipped with HD Radio, which removes (U2L) HD Radio. See dealer for details.)
- In-vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder and trailer electrical diagnostics
- Instrument cluster, 6-gauge cluster featuring speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
- Keyless Open and Start
- Mirror, inside rearview auto-dimming
- Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
- Power outlet, front auxiliary, 12-volt
- Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
- Power outlet, rear auxiliary, 12-volt
- Premium Floor Liners with removable carpet insert, front
- Premium Floor Liners with removable carpet insert, rear
- Remote vehicle starter system
- Seat adjuster, driver 10-way power including lumbar
- Seat adjuster, passenger 10-way power including lumbar
- Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
- Seating, heated driver and front outboard passenger
- Seats, front bucket with center console
- Seats, ventilated driver and front passenger
- SiriusXM Radio
- SiriusXM with 360L Equipped with SiriusXM with 360L. Enjoy a trial subscription of the All Access package for the full 360L experience, with a greater variety of SiriusXM content, a more personalized experience and easier navigation. With the All Access package, you can also enjoy your favorites everywhere you go, with the SiriusXM app, online and at home on compatible connected devices. (IMPORTANT: The SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental (FDR) use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM Customer Agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features, and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.)
- Steering column, lock control, electrical
- Steering column, manual Tilt-Wheel and telescoping
- Steering wheel audio controls
- Steering wheel, heated
- Steering wheel, leather-wrapped
- Theft-deterrent system, unauthorized entry
- USB Ports (Inside Console with bucket seats), 2 also includes 1 SD card reader and auxiliary jack
- USB ports, 2 (first row) located on instrument panel
- USB ports, dual, charge-only (2nd row)
- Window, power front, passenger express up/down
- Windows, power front, drivers express up/down
- Windows, power rear, express down
- Wireless phone projection, for Apple CarPlay and Android Auto
Mechanical
- Air filter, heavy-duty
- Auto-locking rear differential
- Automatic Stop/Start (Standard on vehicles built before 6-7-2021. Most vehicles built on or after 6-7-2021 that are equipped with a V8 engine and (MQB) 10-speed automatic transmission will have (NSS) Not Equipped with Automatic Stop/Start, which removes Automatic Stop/Start and its content. See dealer for details)
- Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
- Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
- Capless Fuel Fill
- Cargo tie downs (12), fixed, rated at 500 lbs per corner
- Exhaust, aluminized stainless-steel muffler and tailpipe
- Four wheel drive
- Frame, fully-boxed, hydroformed front section
- GVWR, 7100 lbs. (3221 kg) (Requires Crew Cab 4WD model and (LM2) Duramax 3.0L Turbo-Diesel I6 engine.)
- Hill Descent Control
- Pickup bed
- Rear axle, 3.23 ratio
- Recovery hooks, Red
- Skid Plates
- Steering, Electric Power Steering (EPS) assist, rack-and-pinion
- Suspension, Off-Road with 2 factory installed lift and monotube shocks
- Trailer brake controller, integrated
- Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
Safety
- Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
- Daytime Running Lamps, LED signature lighting
- HD Rear Vision Camera
- Hitch Guidance
- Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
- OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
- Rear Seat Reminder
- StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
- Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
- Tire Pressure Monitoring System with Tire Fill Alert (does not apply to spare tire)
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Customer Reviews
Kareem Williams was a fantastic sales associate. Thank you.
It was all good thank you I don’t have any more words to write
I worked with Tracy in service and overall it was a great experience from check in to check out. He answered all my questions and kept me updated throughout the whole process during the service. Hands down I will be recommending this place for service. Exceptional customer service!
The dealership was fine and did a good job however I hate surveys and feel your surveys unfair to everyone involved
Mike did a fantastic job at helping me out today!
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**With approved credit. Terms may vary. Monthly payments are only estimates derived from the vehicle price with a 72 month term, 5.9% interest and 20% downpayment.
**Although every reasonable effort has been made to ensure the accuracy of the information contained on this site, absolute accuracy cannot be guaranteed. This site, and all information and materials appearing on it, are presented to the user “as is” without warranty of any kind, either express or implied, including but not limited to the implied warranties of merchantability, fitness for a particular purpose, title or non-infringement. All vehicles are subject to prior sale. Price does not include applicable tax, title, and license. Not responsible for typographical errors.
