
2021 GMC Sierra 1500
Mileage: 125,519 · Vandalia, IL
$1,399 Below market
2021 GMC Sierra 1500 SLT Crew Cab 4WD
Vandalia, IL
$28,478
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Features
Mileage
125,519
Drivetrain
Four-Wheel Drive
Exterior color
Summit White
Interior color
Dark Walnut/Slate
MPG
24 MPG
Engine
277 hp 3L I6 Diesel
Fuel type
Diesel
Transmission
Automatic
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Overview
- Make:GMC
- Model:Sierra 1500
- Year:2021
- Trim:SLT
- Body type:Pickup Truck
- Exterior color:Summit White
- Interior color:Dark Walnut/Slate
- Mileage:125,519 mi
- Condition:Used
- VIN:3GTU9DET4MG334325
- Stock number:26072A
Fuel economy
- Fuel tank size:24 gal
- Combined gas mileage:24 MPG
- City gas mileage:22 MPG
- Highway gas mileage:26 MPG
- Fuel type:Diesel
Performance
- Transmission:Automatic
- Drivetrain:Four-Wheel Drive
- Engine:277 hp 3L I6 Diesel
- Horsepower:277 hp
Safety
- NHTSA overall safety rating:
- NHTSA frontal crash rating:
- NHTSA side crash rating:
- NHTSA rollover rating:
Measurements
- Doors:4 doors
- Front legroom:44 in
- Back legroom:43 in
- Cabin size:Crew Cab
- Cargo volume:69 in
Options
History
Clean title
No issues reported.
1 accident reported
No damage reported.
1 previous owner
Vehicle has one previous owner.
Pricing

Selling slowly
No price changes
217 days at this dealership
Dealer

Dealer reviews
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Dealer's description
EPA 20 MPG Hwy/14 MPG City! SLT trim. Heated Seats, Onboard Communications System, Diesel, Back-Up Camera, 4x4, Chrome Wheels, X31 OFF-ROAD AND PROTECTION PACKAGE, SLT PREMIUM PACKAGE, SLT CONVENIENCE PACKAGE, Hitch.
KEY FEATURES INCLUDE
4x4, Back-Up Camera, Diesel, Onboard Communications System, Trailer Hitch GMC SLT with Summit White exterior and Dark Walnut/Slate interior features a Straight 6 Cylinder Engine with 355 HP at 5600 RPM*.
OPTION PACKAGES
SLT PREMIUM PACKAGE includes (PCY) SLT Convenience Package and (NZM) 20 Polished aluminum wheels, (BVT) Chrome assist steps. X31 OFF-ROAD AND PROTECTION PACKAGE includes (X31) Off-Road Package, (CGN) spray-on bedliner and (RIA) All-weather floor liners, LPO Includes (NZM) 20 Polished aluminum wheels and (QAE) 275/60R20 all-terrain, blackwall tires. 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.) (STD), TRANSMISSION, 10-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking Most vehicles built on or after 6-7-2021 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.), SLT CONVENIENCE PACKAGE includes (A50) bucket seats with (D07) center console, (KQV) ventilated front seats, (A48) rear sliding power window, (UG1) Universal Home Remote, (MCZ) 2 USB ports with auxiliary input (IP Mounted), (MCR) 2 USB Ports/SD Card/Aux Jack (Inside Console with bucket seats) and (KA6) rear heated seats (KA6) Heated Second Row Outboard Seats are included on Crew Cab models built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats, which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.).
PRICED TO MOVE
AutoCheck One Owner Reduced from $56,888. This Sierra 1500 is priced $9,900 below J.D. Power Retail.
Pricing analysis performed on 6/16/2026. Horsepower calculations based on trim engine configuration. Fuel economy calculations based on original manufacturer data for trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase.
Additional Information
10-Speed A/T,4-Wheel Disc Brakes,8 Cylinder Engine,8-Speed A/T,A/C,A/T,ABS,Adjustable Steering Wheel,AM/FM Stereo,Apple CarPlay,Auto-Dimming Rearview Mirror,Auxiliary Audio Input,Back-Up Camera,Bluetooth,Bucket Seats,Chrome Wheels,Climate Control,Cruise Control,Daytime Running Lights,Diesel Fuel,Driver Adjustable Lumbar,Driver Air Bag,Floor Mats,Fog Lamps,Four Wheel Drive,Front Head Air Bag,Front Side Air Bag,Gasoline Fuel,Heated Mirrors,Heated Seats,Heated Seats,Heated Steering Wheel,Keyless Entry,Keyless Start,Leather Steering Wheel,Locking/Limited Slip Differential,Mirror Memory,MP3 Player,Multi-Zone A/C,Pass-Through Rear Seat,Passenger Adjustable Lumbar,Passenger Air Bag,Power Door Locks,Power Driver Seat,Power Mirror(s),Power Outlet,Power Passenger Seat,Power Steering,Power Windows,Privacy Glass,Rear Defrost,Rear Head Air Bag,Remote Start,Requires Subscription,Satellite Radio,Seat Memory,Security System,Sliding Rear Window,Smart Device Integration,Split Bench Seat,Stability Control,Steel Wheels,Steering Wheel Audio Controls,Straight 6 Cylinder Engine,Telematics,Tire Pressure Monitor,Tires - Front All-Season,Tires - Rear All-Season,Tow Hitch,Tow Hooks,Traction Control,WiFi Hotspot
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