Reduced by $4,091 since Mar 04, 2026

2021 GMC Sierra 1500 AT4



Available
  • $32,909 BRONDES PRICE


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Vehicle Information

VIN: 1GTU9EET8MZ401966
Stock #: UT15915
Model Code: TK10743
  • Body Style 4D Crew Cab
  • Exterior Color Cayenne Red Tintcoat
  • Interior Color Jet Black With Kalahari Accents
  • Mileage 91,687
  • Fuel Economy
    City/Highway 22/26 MPG
  • Engine 6 Cyl - 3 L
  • Transmission 10-Speed Automatic
  • Fuel Type Diesel

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Discover the ultimate off-road companion in the 2021 GMC Sierra 1500 AT4. This rugged and capable truck is designed to conquer any terrain, offering unparalleled performance and an exceptional driving experience.

Featuring a striking Cayenne Red Tintcoat exterior, this Sierra 1500 AT4 is equipped with a range of impressive features that set it apart from the competition. Some key highlights include:

- LT275/65R18C MT BLACKWALL GOODYEAR WRANGLER DURATRAC tires for exceptional off-road traction
- Preferred Equipment Group 4SB and Trailering Package for enhanced capability and convenience
- Perforated leather-appointed front seat trim, heated and ventilated front seats, and heated rear outboard seats for unmatched comfort

The Sierra 1500 AT4 is powered by a robust 3.0L I6 engine paired with a 10-speed automatic transmission, delivering an impressive 22 city / 26 highway MPG. With its 4WD system and off-road suspension, this truck is ready to tackle any adventure, whether it's conquering rugged terrain or towing your favorite toys.

Inside, the Sierra 1500 AT4 offers a premium audio system, dual-zone automatic climate control, and a host of advanced technology features, including a 4G LTE Wi-Fi hotspot, Apple CarPlay, and Android Auto. The spacious cabin and ample storage space make this truck the perfect companion for both work and play.

Safety is also a top priority, with features like dual front impact airbags, front and rear anti-roll bars, and electronic stability control ensuring your peace of mind on the road.

Whether you're looking to conquer the great outdoors or simply need a capable and versatile truck for your daily driving needs, the 2021 GMC Sierra 1500 AT4 is the perfect choice. Experience the power and performance that only a true off-road champion can provide. Visit our showroom today and let us help you find your perfect match.

All 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
  • 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
  • Block heater
  • 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
  • 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
  • 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 2nd Row Outboard Seats
  • 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
  • Deep-Tinted Glass
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio
  • Mileage
    • Fuel Economy Est-Combined (MPG): 16
    • Fuel Economy Est-Combined (MPG): 17
    • Fuel Economy Est-Combined (MPG): 24
    • EPA Fuel Economy Est - City (MPG): 14
    • EPA Fuel Economy Est - City (MPG): 15
    • EPA Fuel Economy Est - City (MPG): 22
    • EPA Fuel Economy Est - Hwy (MPG): 19
    • EPA Fuel Economy Est - Hwy (MPG): 19
    • EPA Fuel Economy Est - Hwy (MPG): 26
  • Electrical
    • Cold Cranking Amps @ 0° F (Primary): 730
    • Cold Cranking Amps @ 0° F (Primary): 850
    • Maximum Alternator Capacity (amps): 170
    • Maximum Alternator Capacity (amps): 220
    • Maximum Alternator Watts: - TBD -
  • Cooling System
    • Total Cooling System Capacity (qts): - TBD -
  • Weight Information
    • Gross Axle Wt Rating - Front (lbs): 3800
    • Gross Axle Wt Rating - Rear (lbs): 3800
    • Curb Weight - Front (lbs): 2918
    • Curb Weight - Rear (lbs): 1949
    • Gross Vehicle Weight Rating Cap (lbs): 7000
    • Gross Vehicle Weight Rating Cap (lbs): 7100
    • Gross Combined Wt Rating (lbs): 15000
  • Trailering
    • Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
    • Dead Weight Hitch - Max Tongue Wt. (lbs): 500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 9000
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 8900
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 900
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 890
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 6600
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 6400
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 1650
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 1600
    • Maximum Trailering Capacity (lbs): 9000
  • Suspension
    • Suspension Type - Front: Independent
    • Suspension Type - Rear: Solid Axle
    • Spring Capacity - Front (lbs): 3800
    • Spring Capacity - Rear (lbs): 4150
    • Spring Capacity - Rear (lbs): 3850
    • Axle Type - Front: - TBD -
    • Axle Type - Rear: - TBD -
    • Axle Capacity - Front (lbs): 3800
    • Axle Capacity - Rear (lbs): 4150
    • Axle Capacity - Rear (lbs): 3800
    • Axle Ratio (:1) - Front: 3.42
    • Axle Ratio (:1) - Front: 3.23
    • Axle Ratio (:1) - Rear: 3.42
    • Axle Ratio (:1) - Rear: 3.23
    • Shock Absorber Diameter - Front (mm): 50
    • Shock Absorber Diameter - Rear (mm): 51
    • Stabilizer Bar Diameter - Front (in): 1.30
  • Brakes
    • Brake Type: Pwr
    • Brake ABS System: 4-Wheel
    • Disc - Front (Yes or ): Yes
    • Disc - Rear (Yes or ): Yes
    • Front Brake Rotor Diam x Thickness (in): 13.5 x 1.18
    • Rear Brake Rotor Diam x Thickness (in): 13.6 x 0.79
  • Tires
    • Front Tire Order Code: QAE
    • Front Tire Order Code: QFV
    • Front Tire Order Code: R3O
    • Front Tire Order Code: XCK
    • Rear Tire Order Code: QAE
    • Rear Tire Order Code: QFV
    • Rear Tire Order Code: R3O
    • Rear Tire Order Code: XCK
    • Spare Tire Order Code: QAQ
    • Spare Tire Order Code: XCQ
    • Front Tire Size: 275/60R20SL
    • Front Tire Size: LT265/60R20
    • Front Tire Size: LT275/65R18C
    • Front Tire Size: 265/65R18SL
    • Rear Tire Size: 275/60R20SL
    • Rear Tire Size: LT265/60R20
    • Rear Tire Size: LT275/65R18C
    • Rear Tire Size: 265/65R18SL
    • Spare Tire Size: 255/80R17SL
    • Spare Tire Size: 265/70R17SL
    • Front Tire Capacity (lbs): - TBD -
    • Rear Tire Capacity (lbs): - TBD -
    • Spare Tire Capacity (lbs): - TBD -
    • Revolutions/Mile @ 45 mph - Front: - TBD -
    • Revolutions/Mile @ 45 mph - Rear: - TBD -
    • Revolutions/Mile @ 45 mph - Spare: - TBD -
  • Wheels
    • Front Wheel Size (in): 20 x 9.0
    • Front Wheel Size (in): 18 x 8.5
    • Rear Wheel Size (in): 20 x 9.0
    • Rear Wheel Size (in): 18 x 8.5
    • Spare Wheel Size (in): 17 x - TBD -
    • Front Wheel Material: Aluminum
    • Rear Wheel Material: Aluminum
    • Spare Wheel Material: Steel
  • Steering
    • Steering Type: Electric Rack & Pinion
    • Steering Ratio (:1), On Center: - TBD -
    • Steering Ratio (:1), At Lock: - TBD -
    • Turning Diameter - Curb to Curb (ft): 50.2
    • Turning Diameter - Curb to Curb (ft): 49.5
    • Turning Diameter - Wall to Wall (ft): - TBD -
  • Frame
    • Frame Type: Hydroformed
  • Fuel Tank
    • Fuel Tank Capacity, Approx (gal): 24
    • Fuel Tank Location: - TBD -
  • Exterior Dimensions
    • Wheelbase (in): 157.05
    • Length, Overall (in): 241.25
    • Width, Max w/o mirrors (in): 81.24
    • Height, Overall (in): 78.22
    • Overhang, Front (in): - TBD -
    • Overhang, Rear w/o bumper (in): - TBD -
    • Front Bumper to Back of Cab (in): - TBD -
    • Cab to Axle (in): - TBD -
    • Cab to End of Frame (in): - TBD -
    • Ground to Top of Load Floor (in): - TBD -
    • Ground to Top of Frame (in): - TBD -
    • Frame Width, Rear (in): - TBD -
    • Ground Clearance, Front (in): 10.7
    • Ground Clearance, Rear (in): 10.7
  • Cargo Area Dimensions
    • Cargo Box Length @ Floor (in): 79.44
    • Cargo Box Width @ Top, Rear (in): - TBD -
    • Cargo Box Width @ Floor (in): 71.4
    • Cargo Box Width @ Wheelhousings (in): 50.63
    • Cargo Box (Area) Height (in): 22.4
    • Tailgate Width (in): - TBD -
    • Cargo Volume (ft³): 71.7
    • Ext'd Cab Cargo Volume (ft³): - TBD -
  • Interior Dimensions
    • Passenger Capacity: 5
    • Front Head Room (in): 43.03
    • Front Leg Room (in): 44.53
    • Front Shoulder Room (in): 66.02
    • Front Hip Room (in): 61.18
    • Second Head Room (in): 40.12
    • Second Leg Room (in): 43.4
    • Second Shoulder Room (in): 65.16
    • Second Hip Room (in): 60.24
  • Summary
    • Vehicle Name: GMC Sierra 1500
    • Body Style: Crew Cab Pickup
    • Body Code: E63
  • Emissions
    • Tons/yr of CO2 Emissions @ 15K mi/year: 11.1
    • Tons/yr of CO2 Emissions @ 15K mi/year: 10.3
    • Tons/yr of CO2 Emissions @ 15K mi/year: 8.5
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