2021 GMC Sierra 1500 SLT

$28,667 • 137,123 miles

VIN: 3GTU9DET8MG425548

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UsedNHTSA

$28,667

Key Specifications

Mileage
137,123 miles
Trim
SLT
Exterior Color
Summit White
Interior Color
Dark Walnut/Slate
Body Style
Truck
Transmission
Automatic
Drivetrain
4WD
Fuel Type
Gasoline
MPG
16 city / 22 hwy
Engine
3L 6-cyl
Horsepower
355 hp
Torque
383 lb-ft
Seating
6 seats
Doors
4
VIN
3GTU9DET8MG425548

Details & features

Includes OEM-advertised specs for the SLT. Verify with the dealer website for details.

Engine & performance

Engine type
gas
Cylinders
V8
Displacement
5.3 L
Horsepower
355 hp
Torque
383 lb-ft

Dimensions

Seating
6
Length
231.7 in
Width
81.2 in
Height
75.5 in
Wheelbase
147.4 in
Ground clearance
8.1 in

Capacity & weight

Max towing
11,700 lbs
Max payload
2,030 lbs
Curb weight
5,040 lbs
Fuel tank
24 gal
Combined MPG
19

Safety Ratings

NHTSA NCAP
5/5
Frontal crash (overall)4/5
Frontal crash (driver)5/5
Frontal crash (passenger)4/5
Side crash (overall)5/5
Rollover4/5
Estimated rollover risk: 19.8%
Driver-assistance features (NHTSA-evaluated)
Electronic Stability Control: StandardForward Collision Warning: OptionalLane Departure Warning: No

Safety data for the 2021 GMC Sierra 1500 SLT (2021 GMC Sierra 1500 PU/RC 4WD) is sourced from the NHTSA 5-Star Safety Ratings program. Ratings apply to the model and may not reflect this specific trim or options.

Open Recalls

NHTSA · 7 open for this model

Power Train: Automatic Transmission: Control Module: Software

Campaign 26V083000

General Motors, LLC is recalling certain 2020 Chevrolet Silverado 2500, 3500, GMC Sierra 2500, 3500, and 2020-2022 Chevrolet Silverado 1500 and GMC Sierra 1500 vehicles that may have been repaired incorrectly under recall 24V797. The transmission control valve may fail and cause the rear wheels to lock up.

Risk: Rear wheel lock up increases the risk of a crash.

Remedy: Dealers will inspect the vehicles and update the transmission control software, free of charge. Owner notification letters were mailed March 6, 2026. Owners may contact GMC customer service at 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252516560. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on February 12, 2026.

Engine And Engine Cooling: Engine: Hard Parts Internal / Mechanical

Campaign 25V274000

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Risk: Engine failure increases the risk of a crash.

Remedy: Dealers will inspect the engine, and as necessary, repair or replace the engine. For vehicles that pass inspection, dealers will add higher viscosity oil, install 6 oil fill cap, replace the oil filter, and update the owner's manual. Repairs will be performed free of charge. Owner notification letters were mailed June 18, 2025. Owners may contact Cadillac customer service at 1-800-333-4223, Chevrolet customer service at 1-800-222-1020, or GMC customer service at 1-800-462-8782. GM's number for this recall is N252494000.

Power Train: Automatic Transmission: Control Module: Software

Campaign 24V797000

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Risk: Rear wheel lock-up can increase the risk of a crash.

Remedy: Dealers will install new transmission control module software, free of charge. GM will provide a special coverage program to cover the repair of transmissions that are identified by the remedy software as containing a defective control valve. Owner notification letters were mailed December 12, 2024. Owners may contact GM customer service at 1-888-988-7267, Cadillac customer service at 1-800-458-8006, GMC customer service at GMC 1-800-462-8782 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N242454440.

Tires: Temporary / Emergency Spare Tire

Campaign 21V985000

General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.

Risk: An ABS system that does not function properly can increase the risk of a crash.

Remedy: Dealers will provide a new 17" spare tire and wheel assembly that is compatible with the accessory wheels, free of charge. Dealers will also apply a new spare tire information label, and provide owners with an owner's manual insert clarifying which spare tire to use with the accessory road tires and with the 17" original tires. Owner notification letters were mailed February 7, 2022. Owners may contact GM customer service at 1-800-462-8782 or GMC customer service at 1-800-462-8782. GM's number for this recall is N212346510.

Seat Belts

Campaign 20V811000

General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.

Risk: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.

Remedy: GM will notify owners, and dealers will replace the suspect bolts, free of charge. The recall began January 29, 2021. Owners may contact GMC customer service at 1-800-462-8785, Cadillac customer service at 1-800-458-8006, or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202322230.

Seat Belts

Campaign 20V792000

General Motors, LLC (GM) is recalling certain 2019-2021 Chevrolet Silverado 1500 and GMC Sierra 1500, 2021 Chevrolet Suburban and Tahoe and GMC Yukon XL and 2020-2021 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 vehicles. The seat belt brackets may not be secured to the seat frame in the front-row center seating position.

Risk: If a seat-belt bracket is not secured, the seat belt may not properly restrain an occupant in the front-row center seat position, increasing the risk of injury in a crash.

Remedy: GM will notify owners, and dealers will inspect left-side and right-side front-row center seat-belt bracket attachments and reassemble it correctly as necessary, free of charge. The recall began January 26, 2021. Owners may contact GMC customer service at 1-800-462-8782, Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N202314670.

Tires

Campaign 20V684000

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.

Risk: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.

Remedy: GM will notify owners, and dealers will inspect vehicles and replace tires that have DOT number and production mold number combinations identified by Continental, free of charge. The recall began December 17, 2020. Owners may contact GMC customer service at 1-888-988-7267, Buick customer service at 1-866-608-8080, Chevrolet customer service at 1-800-222-1020 or Cadillac customer service at 1-800-458-8006. GM's number for this recall is N202319030.

Recall data for the 2021 GMC Sierra 1500 SLT is sourced from the NHTSA recall database. These recalls are reported by NHTSA for the 2021 GMC Sierra 1500. They may or may not apply to this specific vehicle or VIN. Contact the dealer or check with NHTSA to confirm remedy status.

Who This Vehicle Is Good For

Safety-Focused Buyers

Earned a 5-star overall NHTSA safety rating, a top pick for families and anyone who puts crash protection first.

Contractors & Tradespeople

Capable bed and towing capacity for hauling equipment and materials to job sites.

Homeowners

Perfect for DIY projects, landscaping, and trips to the hardware store.

Price Comparison

Market Insights

Financing information

Total price

$28,667

Loan term

Typical monthly

$588/mo

Avg. APR

8.50%

60-month loan estimate for good credit. Not a credit offer; actual APR varies by lender, credit, and dealer. Assumes $0 down.

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Vehicle Description

From the dealer listing

2021 GMC Sierra 1500 SLT 4WD Crew Cab ??? Duramax Diesel, X31 Off-Road & Premium LuxuryBuilt for work, adventure, and everyday comfort, this 2021 GMC Sierra 1500 SLT Crew Cab 4WD is finished in Summit White with a premium Dark Walnut/Slate leather interior. Powered by the highly sought-after 3.0L Duramax Turbo-Diesel inline-six paired with a 10-speed automatic transmission, this Sierra delivers exceptional fuel economy, 460 lb-ft of torque, and outstanding towing capability while maintaining a refined, quiet ride.Performance & Capability3.0L Duramax Turbo-Diesel I6 (277 HP / 460 lb-ft Torque)10-Speed Automatic TransmissionFour-Wheel DriveAutotrac?? 2-Speed Electronic Transfer CaseX31 Off-Road PackageOff-Road SuspensionHill Descent ControlAuto-Locking Rear DifferentialIntegrated Trailer Brake ControllerIn-Vehicle Trailering AppSkid PlatesEngine Block Heater220-Amp AlternatorHigh-Capacity Air Filter7,200-lb GVWRInterior & TechnologyPremium Leather-Appointed SeatingHeated & Ventilated Front Bucket SeatsHeated Rear Outboard SeatsHeated Leather-Wrapped Steering Wheel10-Way Power Driver & Passenger Seats with LumbarDual-Zone Automatic Climate ControlRear Sliding Power WindowUniversal Home RemoteRemote StartRear Seat Storage Package120-Volt Interior Power Outlet120-Volt Bed Power OutletDual Rear USB Charging PortsApple CarPlay?? & Android Auto???Bluetooth?? Hands-Free ConnectivityWi-Fi Hotspot CapabilitySafety & Driver AssistanceRear Vision CameraStabiliTrak?? Electronic Stability ControlTrailer Sway ControlHill Start AssistHitch GuidanceTeen Driver TechnologyTire Pressure Monitoring SystemMultiple Airbag Safety SystemExterior FeaturesSummit White Exterior20-Inch Polished Aluminum WheelsAll-Terrain TiresGMC MultiPro TailgateSpray-On BedlinerLED Headlights, Fog Lights & Signature LED TaillightsLED Cargo Box LightingChrome Grille, Mirror Caps & Door HandlesChrome Front & Rear BumpersRear Wheelhouse LinersDeep-Tinted GlassPremium Packages & HighlightsX31 Off-Road and Protection PackageSLT Convenience PackageHeated & Ventil

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Location

9051 East Colonial Drive, Orlando, FL, 32817

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