STOCKMG400759
VIN3GTP9EED1MG400759
Certified 2021 GMC Sierra 1500 AT4 in Tomball, TX
Popular Features
Details
Vehicle Description
Premium Sound
Sat Radio
Apple CarPlay
Android Auto
Fog Lights
Heated Seat
Heated Steering Wheel
Navigation
Keyless Entry
Bluetooth
Cruise Control
Reverse Camera
Mileage
82,812
Trim
AT4
Stock #
MG400759
VIN
3GTP9EED1MG400759
Exterior Color
Onyx Black
Interior Color
Jet Black With Kalahari Accents
Fuel Economy
City:15 Hwy:21
Doors
4
Engine
EcoTec3 5.3L V8
Transmission
10-Speed Automatic
Drivetrain
4WD
The 2021 GMC Sierra 1500 AT4 is a rugged and capable full-size pickup that's ready to tackle any adventure. Equipped with an EcoTec3 5.3L V8 engine and a 10-speed automatic transmission, this 4WD truck delivers impressive power and performance.- LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND…The 2021 GMC Sierra 1500 AT4 is a rugged and capable full-size pickup that's ready to tackle any adventure. Equipped with an EcoTec3 5.3L V8 engine and a 10-speed automatic transmission, this 4WD truck delivers impressive power and performance.
- LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND ROWS (includes AT4 logo)
- Onyx Black
- Black
- TIRES, LT275/65R18C MT BLACKWALL GOODYEAR WRANGLER DURATRAC
This Sierra AT4 comes loaded with premium features to enhance your driving experience, including a premium audio system, dual-zone automatic climate control, and a suite of advanced connectivity and safety technologies. The off-road-focused suspension and locking rear differential ensure confident handling, whether you're navigating rough terrain or towing heavy loads.
Designed with the active lifestyle in mind, the Sierra AT4 offers the perfect blend of capability, comfort, and style. Experience the difference with this exceptional full-size pickup.
Custom opening sentence provided by the dealer: Discover the ultimate in off-road prowess and on-road refinement with this 2021 GMC Sierra 1500 AT4.
The vehicle is equipped with a comprehensive set of premium features that elevate the driving experience. Enjoy the convenience of dual-zone climate control, the connectivity of the premium GMC Infotainment System, and the added confidence of the ProGrade Trailering System. With its rugged off-road suspension, locking rear differential, and Goodyear Wrangler DuraTrac tires, this Sierra AT4 is ready to tackle any adventure.
Backed by GMC's commitment to quality and innovation, this 2021 Sierra 1500 AT4 is a must-see for anyone seeking a versatile and capable full-size pickup. Schedule a test drive today and experience the difference for yourself.
Custom closing sentence provided by the dealer: Visit us today and let us show you why this 2021 GMC Sierra 1500 AT4 is the perfect addition to your lifestyle.(more)
- LPO, ALL-WEATHER FLOOR LINERS, 1ST AND 2ND ROWS (includes AT4 logo)
- Onyx Black
- Black
- TIRES, LT275/65R18C MT BLACKWALL GOODYEAR WRANGLER DURATRAC
This Sierra AT4 comes loaded with premium features to enhance your driving experience, including a premium audio system, dual-zone automatic climate control, and a suite of advanced connectivity and safety technologies. The off-road-focused suspension and locking rear differential ensure confident handling, whether you're navigating rough terrain or towing heavy loads.
Designed with the active lifestyle in mind, the Sierra AT4 offers the perfect blend of capability, comfort, and style. Experience the difference with this exceptional full-size pickup.
Custom opening sentence provided by the dealer: Discover the ultimate in off-road prowess and on-road refinement with this 2021 GMC Sierra 1500 AT4.
The vehicle is equipped with a comprehensive set of premium features that elevate the driving experience. Enjoy the convenience of dual-zone climate control, the connectivity of the premium GMC Infotainment System, and the added confidence of the ProGrade Trailering System. With its rugged off-road suspension, locking rear differential, and Goodyear Wrangler DuraTrac tires, this Sierra AT4 is ready to tackle any adventure.
Backed by GMC's commitment to quality and innovation, this 2021 Sierra 1500 AT4 is a must-see for anyone seeking a versatile and capable full-size pickup. Schedule a test drive today and experience the difference for yourself.
Custom closing sentence provided by the dealer: Visit us today and let us show you why this 2021 GMC Sierra 1500 AT4 is the perfect addition to your lifestyle.(more)
Vehicle Details
Features
Safety
Safety
Rearview monitor
in dash
Check rear seat reminder
Child safety door locks
Child seat anchors
LATCH system
Camera system
rearview
Programmable safety key
Airbags
Airbag deactivation
occupant sensing passenger
Side airbags
front
Front airbags
dual
Side curtain airbags
front, rear
Security
Anti-theft system
alarm, vehicle immobilizer
Power door locks
anti-lockout, auto-locking
Mirrors
Side mirror adjustments
power, reverse gear tilt, power folding
Side mirrors
heated, driver side auto-dimming
Technology
Instrumentation
Warnings and reminders
low battery, lamp failure, low oil pressure, coolant temperature warning, low fuel level, maintenance due
Instrument cluster screen size
4.2 in.
Clock
Powertrain hour meter
Gauge
tachometer, oil pressure
Compass
Digital odometer
External temperature display
Multi-function display
Fuel economy display
MPG, range
Trip odometer
Audio System
Radio
voice operated, touch screen display, AM/FM
Auxiliary audio input
Bluetooth, jack, USB, memory card slot, iPod/iPhone
Antenna type
diversity, mast
Total speakers
6
Radio data system
Speed sensitive volume control
Satellite radio
SiriusXM
Telematics
Electronic messaging assistance
with read function, voice operated
Satellite communications
voice guided directions, OnStar
Wi-Fi
hotspot
Driver assistance app
roadside assistance
Smart device app function
maintenance status
Smart device app compatibility
myGMC with Connected Access
Wireless data link
Bluetooth
Hands-free phone call integration
voice operated
In Car Entertainment
Connected in-car apps
Google POIs, Google search, app marketplace integration
Infotainment
GMC Infotainment System
Infotainment screen size
8 in.
Smartphone integration
wireless Apple CarPlay, wireless Android Auto
Exterior
Exterior Features
Active grille shutters
Pickup bed light
LED
Tailgate
power locking, power open, multi-function split-folding, removable, lift assist, step
Bumper detail
rear integrated corner step
Mirror color
black
Front bumper color
body-color
Pickup bed liner
spray-on
Door handle color
body-color
Grille color
black, body-color surround
Skid plate(s)
front, powertrain
Rear bumper color
body-color
Fender lip moldings
black
Exhaust
dual tip
Exhaust tip color
polished aluminum
Window trim
black
Lights
Daytime running lights
LED
Front fog lights
LED
Taillights
LED
Exterior entry lights
puddle lamps, approach lamps
Headlights
LED, wiper activated, auto delay off, auto on/off
Tires and Rims
Tire type
all terrain
Spare tire mount location
underbody
Spare wheel type
steel
Tire Pressure Monitoring System
Spare tire size
full-size
Wheels
aluminum alloy with painted accents
Windows
Window defogger
rear
Front wipers
variable intermittent
Tinted glass
Power windows
safety reverse
Interior
Seats
Driver seat power adjustments
height, 10, lumbar, reclining
Passenger seat power adjustments
height, 10, lumbar, reclining
Driver seat
ventilated, heated
Passenger seat
heated, ventilated
Rear headrests
3, foldable
Front headrests
2, adjustable
Front seat type
bucket
Rear seat type
60-40 split bench
Upholstery
leather-trimmed
Rear seat folding
folds up
Rear seat
heated
Upholstery accents
perforated
Seatbelts
Seatbelt pretensioners
front
Seatbelt warning sensor
front
Rear seatbelts
3-point
Front seatbelts
3-point
Emergency locking retractors
front
Mechanical
Drivetrain
Drive mode selector
4WD type
part time w/ on demand setting
4WD selector
electronic hi-lo
Axle ratio
3.23
Locking differential
rear
Engine
Auto start/stop
Battery saver
Battery
heavy duty, maintenance-free
Battery rating
730 CCA
Alternator
170 amps
Stability and Traction
Off-road driving assist
hill descent
Stability control
Traction control
Hill holder control
Roll stability control
Trailer stability control
Suspension
Front shock type
monotube
Rear shock type
monotube
Front suspension classification
independent
Rear suspension classification
solid live axle
Rear spring type
leaf
Front spring type
coil
Tuned suspension
off-road
Rear suspension type
multi-leaf
Front struts
Front stabilizer bar
diameter 33 mm
Front suspension type
upper and lower control arms
Brakes
Rear brake type
ventilated disc
Front brake width
1.18
Rear brake diameter
14.2
Front brake diameter
13.6
Front brake type
ventilated disc
Braking assist
Electronic brakeforce distribution
ABS
4-wheel
Power brakes
Rear brake width
0.79
Towing and Hauling
Tow hooks
front
Tow/Haul mode
Pickup bed cargo management
tie-down anchors
Trailer hitch
Trailer wiring
4-pin, 7-pin
Trailer brake controller
Comfort
Convenience Features
Power outlet(s)
USB front, USB rear, 115V cargo area, 12V rear, 12V front, 115V front
Power steering
electric,
Cupholders
front, rear
Memorized settings
2 driver, driver seat, side mirrors
Steering wheel
tilt and telescopic
One-touch windows
4
Reading lights
front
Cruise control
Multi-function remote
panic alarm, vehicle and key memory, proximity entry system
Power windows
lockout button
Steering wheel mounted controls
audio, cruise control, phone, multi-function, voice control
Push-button start
Vanity mirrors
dual illuminating
Assist handle
rear, front
Remote engine start/cabin preconditioning
Center console
front console with armrest and storage
Rearview mirror
auto-dimming
Easy entry
power driver seat
Storage
front seatback, under rear seats, door pockets
Capless fuel filler system
Comfort Features
Floor mat material
rubber/vinyl
Heated steering wheel
Steering wheel trim
leather
Armrests
rear folding, rear center with cupholders
Floor mats
rear, front
Floor material
carpet
Air Conditioning
Front air conditioning
automatic climate control
Front air conditioning zones
dual
Rear vents
second row
Air filtration
Specifications
Drive Type
Drive Type
4X4
4WD Hub Type
Pushbutton Hubs
Seating
Standard Seating
5
Max Seating
5
Head Room (front)
43 in
Head Room (rear)
40.1 in
Hip Room (front)
61.2 in
Hip Room (rear)
60.2 in
Shoulder Room (front)
66 in
Shoulder Room (rear)
65.2 in
Leg Room (front)
44.5 in
Leg Room (rear)
43.4 in
Seating Rows
2
Truck Specifications
Bed Length
69.9 in
Max Payload
2080 lbs
Measurements of Size & Shape
Length
231.7 in
Width
81.2 in
Width (without mirrors)
81.2 in
Height
78.4 in
Wheelbase
147.5 in
Ground Clearance
10.9 in
Track Width (front)
69.5 in
Track Width (rear)
69 in
Measurements of Weight
Gross Vehicle Weight Rating
7100 lbs
Gross Vehicle Weight Range
7001-8000 lbs
Curb Weight
5140 lbs
Gross Combined Weight Rating
15000 lbs
Base Towing Capacity
9200 lbs
Max Towing Capacity
9200 lbs
Performance Specifications
Turning Circle
46.3 ft
Fuel Tanks
Fuel Capacity
24.0 Gallons
Wheels and Tires
Front Tire Type
265/65R18
Front Wheel Diameter
18.0 x 8.5 in
Rear Tire Type
265/65R18
Rear Wheel Diameter
18.0 x 8.5 in
Testimonials
One of the most pleasant car buying experiences that I have taken part of. From the upfront pricing and the willingness to work with my needs Keating is a wonderful place to buy a car. Erik came highly recommended and he did not disappoint on that either...
The entire service team collaborated to diagnose and remediate my issue, even though minor, was a puzzle to say the least. Appreciate the frequent communication and updates and concierge service was top notch.
Took my car for an oil change recently. Service was great. The staff was friendly and gave the feel that they love their jobs. Always a plus to be around a positive atmosphere when you wait for any type of service.
Similar Vehicle Match
Description
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Dealership Information
Disclaimer
*All pricing and details are believed to be accurate, but we do not warrant or guarantee such accuracy. The prices shown above may vary from region to region, as will incentives, and are subject to change. Vehicle information is based off standard equipment and may vary from vehicle to vehicle. Call or email for complete vehicle information. All specifications, prices and equipment are subject to change without notice. Prices and payments do not include tax, titles, tags, finance charges, documentation charges, emissions testing charges, or other fees required by law, vehicle sellers or lending organizations.
Based on 2021 EPA mileage estimates, reflecting new EPA fuel economy methods beginning with 2008 models. Use for comparison purposes only. Do not compare to models before 2008. Your actual mileage will vary depending on how you drive and maintain your vehicle.
While every effort has been made to ensure display of accurate data, the vehicle listings within this website may not reflect all accurate vehicle items. Accessories and color may vary. All inventory listed is subject to prior sale. The vehicle photo displayed may be an example only. Vehicle Photos may not match exact vehicles. Please confirm vehicle price with Dealership. See Dealership for details.
*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.
Price valid through 07/13/2026
