Explore the rugged capability and refined comfort of the 2021 GMC Sierra 2500 SLE, a standout in the heavy-duty truck segment. This robust vehicle comes equipped with a powerful V8, 6.6L engine, delivering an impressive blend of strength and performance, ideal for both work and leisure. With 4WD, this GMC Sierra 2500 ensures superb traction and stability across various terrains, making it a reliable companion for your toughest adventures.
The exterior showcases a bold design with modern lines and a commanding presence, while the interior offers a spacious and comfortable cabin, designed to keep you and your passengers relaxed during long drives. High-quality materials and thoughtful features enhance your driving experience, including a user-friendly infotainment system, supportive seating, and ample storage space.
This particular model boasts a CARFAX Clean Report, reinforcing its excellent condition and maintenance history. Safety is prioritized with advanced features, ensuring peace of mind on every journey. Whether towing heavy loads or navigating through challenging landscapes, the 2021 GMC Sierra 2500 SLE is engineered to handle it all with ease and confidence. Discover the perfect combination of power, reliability, and comfort with this exceptional heavy-duty truck.
Used 2021 GMCSierra SLE
- Exterior Color
- Quicksilver Metallic
- Interior Color
- Jet Black
- Odometer
- 81,112 miles
- Transmission
- 6-speed automatic
- Drivetrain
- 4WD
- Engine
- V8, 6.6L
- VIN
- 1GT29ME73MF214575
- Stock Number
- BPC449
Highlighted Features
- Wireless phone connectivity
- Split folding rear seat
- Perimeter/approach lights
- Remote keyless entry
- Steering wheel mounted audio controls
- Fully automatic headlights
- Alloy wheels
- Heated door mirrors
- Trailer hitch receiver
- Trailer sway control
Included Packages & Accessories
- Fleet Comfort Package: Manual Tilt-Wheel/telescoping Steering Column; 10-Way Power Driver Seat Adjuster with Lumbar; 120-Volt Instrument Panel Power Outlet; Electric Rear-Window Defogger; Heated Driver and Front Outboard Passenger Seats; A/C with Dual-Zone Automatic Climate Control
- SLE Convenience Package: LED Cargo Area Lighting; Remote Vehicle Starter System; 10-Way Power Driver Seat Adjuster with Lumbar; Electric Rear-Window Defogger; A/C with Dual-Zone Automatic Climate Control; Unauthorized Entry Theft-Deterrent System; Manual Tilt-Wheel/telescoping Steering Column; Heated Steering Wheel; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; Electrical Lock Control Steering Column; LED Fog Lamps; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Front 40/20/40 Split-Bench Seats with Lockable Storage; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet; LED Cargo Area Lighting; Remote Vehicle Starter System; 10-Way Power Driver Seat Adjuster with Lumbar; Electric Rear-Window Defogger; A/C with Dual-Zone Automatic Climate Control; Unauthorized Entry Theft-Deterrent System; Manual Tilt-Wheel/telescoping Steering Column; Heated Steering Wheel; 2nd Row Dual USB Charge-Only Ports; Keyless Open and Start; Electrical Lock Control Steering Column; LED Fog Lamps; LED Smoked Amber Roof Marker Lamps; Heated Driver and Front Outboard Passenger Seats; Front 40/20/40 Split-Bench Seats with Lockable Storage; Rear Wheelhouse Liners; 12-Volt Rear Auxiliary Power Outlet
- Driver Alert Package I: Ultrasonic Front and Rear Park Assist; Rear Cross Traffic Alert; Lane Change Alert with Side Blind Zone Alert; Perimeter Lighting
- Driver Alert Package II: Forward Collision Alert; Following Distance Indicator; Automatic Emergency Braking; IntelliBeam Automatic High Beam On/off; Lane Departure Warning
- X31 Off-Road and Protection Package: LT275/70R18E AT BW Tires; Spray-On Pickup Box Bed Liner with GMC Logo; 1st and 2nd Row All-Weather Floor Liner; 18 Machined Aluminum Wheels
- X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates; Off-Road Suspension; Hill Descent Control; LT265/70R17E AT BW Tires; Skid Plates
- Preferred Package: HD Rear Vision Camera; Power Sliding Rear Window with Defogger; 120-Volt Instrument Panel Power Outlet; In-Vehicle Trailering System App; Wireless Phone Projection; AM/FM Stereo with Premium GMC Infotainment System; 2 USB Ports; Universal Home Remote; HD Radio; Hitch Guidance with Hitch View; HD Rear Vision Camera; Power Sliding Rear Window with Defogger; 120-Volt Instrument Panel Power Outlet; In-Vehicle Trailering System App; Wireless Phone Projection; AM/FM Stereo with Premium GMC Infotainment System; 2 USB Ports; Universal Home Remote; HD Radio; Hitch Guidance with Hitch View
- ProGrade Trailering System: HD Rear Vision Camera; In-Vehicle Trailering System App; Wireless Phone Projection; AM/FM Stereo with Premium GMC Infotainment System; 2 USB Ports; HD Radio; Hitch Guidance with Hitch View; HD Rear Vision Camera; In-Vehicle Trailering System App; Wireless Phone Projection; AM/FM Stereo with Premium GMC Infotainment System; 2 USB Ports; HD Radio; Hitch Guidance with Hitch View
- SLE Value Package: Spray-On Pickup Box Bed Liner with GMC Logo; Spray-On Pickup Box Bed Liner with GMC Logo
- Preferred Equipment Group 3SA: OnStar and GMC Connected Services Capable; Power Front Windows with Passenger Express Down; Remote Keyless Entry; 2-Speed Electronic Shift Transfer Case; Deep-Tinted Glass; 6.6L V8 with Direct Injection and Variable Valve Timing Engine; Chrome Surround Grille with High Gloss Black Mesh; AM/FM Radio with GMC Infotainment System; Power Rear Windows with Express Down; Integrated Trailer Brake Controller; SiriusXM Radio; Manual Tilt Wheel Steering Column; Power Windows with Driver Express Up/down; Compass Located in Instrument Cluster; Front 40/20/40 Split-Bench Seats; Steering Wheel Audio Controls; Power Door Locks
- Remote Start Package: Remote Vehicle Starter System; Electric Rear-Window Defogger
- Gooseneck/5th Wheel Package: Gooseneck/5th Wheel Prep Package; Spray-On Pickup Box Bed Liner with GMC Logo
- GMC Protection Package: Black Front and Rear Molded Splash Guards; 1st and 2nd Row All-Weather Floor Liner
- Assist Step and Floor Liner Package: 1st and 2nd Row All-Weather Floor Liner
- Snow Plow Prep/camper Package: 220 Amps Alternator; Skid Plates
- 20 Machined Aluminum Wheels
- Full-Length Bedside Storage Boxes
- MulitPro Audio System by Kicker
- 6 Rectangular Black Tubular Assist Steps
- 4 Round Black Tubular Assist Steps
- 4 Round Chromed Tubular Assist Steps
- 6 Rectangular Chrome Tubular Assist Steps
- Tri-Fold Soft Tonneau Cover
- Body Color Wheel Arch Moldings
- Cayenne Red Tintcoat
- 18 Machined Aluminum Wheels
- Wired Auxiliary Trailer Camera
- Spray-On Pickup Box Bed Liner with GMC Logo
- Inside Rearview Auo-Dimming Rear Camera Mirror
- LT275/70R18 Mud-Terrain Blackwall Tires
- Cardinal Red
- Pacific Blue Metallic
- Quicksilver Metallic
- Onyx Black
- Brownstone Metallic
- Ebony Twilight Metallic
- Woodland Green
- Wheatland Yellow
- Tangier Orange
- Hitch Package
- Ultrasonic Rear Parking Assist
- 10-Way Power Driver Seat Adjuster with Lumbar
- LED Fog Lamps
- Bed View Camera with Two Trailer Camera Provisions
- Electric Rear-Window Defogger
- 1st and 2nd Row All-Weather Floor Liner
- LT265/70R17E AT BW Tires
- LT275/70R18E AT BW Tires
- LT275/65R20 AT BW Tires
- GMC MultiPro Tailgate Step Lights
- High Idle Switch
- Black Front and Rear Molded Splash Guards
- Rear Underseat Storage
- Upfitter Switch Kit (5)
- Skid Plates
- SEO: 97 Decibels Backup Alarm
- LED Cargo Area Lighting
- Cargo Tie-Down Rings (set of 4)
- 18 Silver 8-Spoke Painted Steel Wheels
- Wheel Locks (set of 4)
- LED Smoked Amber Roof Marker Lamps
- Trailer Tire Pressure Monitor Sensors
- SEO: Back-Up Alarm Calibration
- SEO: Speedometer Calibration Provisions
- Heavy Duty Front Spring/camper Package
- 5th Wheel and Gooseneck Trailer Wiring Provisions
- Apple CarPlay/Android Auto smart device mirroring
- 4G LTE Wi-Fi Hotspot capable mobile hotspot internet access
- Bluetooth handsfree wireless device connectivity
- Rear Vision Camera rear mounted camera
- Brake assist system
- Teen Driver restricted driving mode/alerts
- Immobilizer
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill start assist
- LED daytime running lights
- Manual rear child safety door locks
- 6 airbags
- Driver front impact airbag
- Seat mounted side impact driver airbag
- Curtain first and second-row overhead airbags
- Passenger front impact airbag
- Seat mounted side impact front passenger airbag
- Airbag occupancy sensor
- Cruise control with steering wheel mounted controls
- Keyfob window control
- Rear Seat Reminder rear seat check warning
- BedStep integrated side steps
- EZ Lift
- Easy lower tailgate
- Integrated tailgate step
- Heated driver and passenger side door mirrors
- Capless fuel filler
- Auto-locking doors
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- External memory control
- Internet radio capability
- Part-time 4WD
- 6.6L V-8 gasoline direct injection
- variable valve control
- regular unleaded
- engine with 401HP
- 6-speed automatic
- Tow/Haul Mode selectable mode transmission
- Hitch Guidance vehicle to trailer hitching assist
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Trailer hitch light
- Wheel hub covers
- Manual extendable trailer mirrors
- 17 x 7.5-inch front and rear machined aluminum wheels
- LT245/75SR17 AS BSW front and rear tires
- Leather and metal-look steering wheel
- Manual tilting steering wheel
- Cloth front seat upholstery
- Cloth rear seat upholstery
- Manual climate control
- Front Bucket Seats
- Power-Adjustable Black Outside Mirrors
- Bed View Camera
- 120-Volt Instrument Panel Power Outlet
Dealer Notes
KBB.com Consumer Reviews
- 2.0
Transmission trash
By Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 5.0
Fantastic truck
By Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck! - 3.0
Don't judge a truck by the appearance
By jmil on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).
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