2021 GMC Sierra 1500 SLT

  • Used
Please Call
Groulx Automotive
Call 734-636-0994
We’re here to help

    The overview

    Exterior Color
    Cayenne Red Tintcoat
    Interior Color
    JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTB
    Odometer
    47,482 miles
    Fuel Economy
    14/20 MPG City/Hwy
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    Engine: 5.3L, EcoTec3 V-8, DI, Dynamic Fuel Mgt, V V T
    VIN
    3GTU9DEDXMG249594
    Stock Number
    GT629A
    • Show Me the CARFAX 1-Owner Badge

    A closer look at what’s included

    Base model features & specs only
    • Max seating capacity: 5
    • Fuel System: Direct Injection
    • Fuel tank capacity: 24 gal
    • Horsepower: 355
    This stunning 2021 GMC Sierra 1500 SLT in red with jet black leather interior delivers capability and comfort in one impressive package. With 47,482 miles on the odometer, this Crew Cab Short Box has been well maintained and is ready for your next adventure. Powered by an EcoTec3 5.3L V8 engine paired with a 10-speed automatic transmission and 4WD capability, this truck handles any task with authority.

    Spray-on bed liner for durable cargo protection
    SLT Premium Package with elevated comfort and convenience
    Driver Alert Package I for enhanced safety and peace of mind
    X31 Off-Road Package with specialized suspension and handling
    Premium GMC Infotainment System with Apple CarPlay and Android Auto
    All-terrain 275/60R20 blackwall tires
    Heated front seats and leather upholstery throughout
    Ultrasonic front and rear park assist
    Dual-zone automatic temperature control
    ProGrade Trailering System with integrated controller

    This Sierra combines modern technology with genuine truck toughness. The cabin features premium leather seating, a touchscreen infotainment system with wireless connectivity, and heated seats for year-round comfort. Whether you're hauling cargo or tackling terrain, the advanced suspension and off-road package make this truck exceptionally versatile. Schedule your test drive today to experience the Sierra SLT difference.

    Groulx Automotive is a 3rd generation dealership in Monroe Michigan that has been in business for over 75 years. We value exceptional service and honesty. We would love an opportunity to earn your business.

    Peace of mind

    vehicle history report

    Vehicle history report

    • Title information
    • Odometer readings
    • Accident data (if applicable)
    • Service history
    • Vehicle usage
    • Recall information (if applicable)
    • Warranty status
    Free CarFax report

    A name you can trust

    Groulx Automotive is dedicated to your satisfaction before, during, and after your purchase. We'll go the extra mile to take care of you.
    More about us

    KBB.com Consumer Reviews

    Kelley Blue Book Logo4.0out of 5 overall
    • 4.0

      Depreciation of 50%

      by Manny A on 10/28/2026 10:06:36 AM

      This is a amazing truck.. Comfortable lots of sensors Etc…. My truck has 30000 miles I when to trade in they offer $46000 I paid $86000 the depreciation is incredible I don’t buy new truck never again.…
    • 5.0

      2021 GMC SLT 4WD SIERRA, Great Truck

      by Ransom1 on 10/15/2026 4:18:42 PM

      This is my 8th truck. This is hands down the very best truck I’ve ever owned. Not only is it the best looking truck on the road I have never had it in the shop except for oil changes and scheduled maintenance. The silver does not show dirt or grime.…
    • 5.0

      Great 4 cylinder truck

      by Steve on 9/23/2026 2:01:15 AM

      I have only pulled a trailer one time and still got 18 mpg down doing 80 down the interstate. Otherwise this vehicle is used for commuting or recreating. I typically get 22-24 mpg driving MT highways to the mountains. The turbo has some spunk for getting up to speed and the five years I've had my truck no complaints.…
    Disclaimer: The Manufacturer’s Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.

    1Dealer Discount applied to everyone