2025 GMC
Sierra 1500 Truck

Starting at: $38,300

  • Manufacturer Offer

    No Monthly Payments for 90 Days for Well-Qualified Buyers When Financed w/ GM Financial

    * Read full offer details
    Applies to this new 2025 GMC Sierra 1500

    * Disclaimer(s)

    • Deferred monthly payments for 90 days. Finance charges accrue from date of financing. Must finance with GM Financial. Down payment required at signing, if applicable. Offer not available in PA. Some customers may not qualify. Not available with lease and some other offers. 0.0% APR for 36 months for well-qualified buyers when financed w/GM Financial. Monthly payment is $27.78 for every $1000 you finance. Average example down payment is 10.8%. Not available with leases and some other offers. Must take new retail delivery by 09/02/2025. Truth in Lending Act Disclosure: Down payment will vary with APR and credit. For example, 0.0% APR with $2,500 down payment provides for 36 monthly payments of $27.78 per $1000 financed for qualified buyers. 2.9% APR for a term of 48 months corresponds to a monthly cost of $22.09 per $1000 financed. 5.9% APR for a term of 60 months corresponds to a monthly cost of $19.29 per $1000 financed. 5.9% APR for a term of 72 months corresponds to a monthly cost of $16.53 per $1000 financed. 5.9% APR for a term of 84 months corresponds to a monthly cost of $14.56 per $1000 financed. The rates described are for estimation purposes only; you may not be able to finance at this rate.

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  • Manufacturer Offer

    Purchase Allowance

    * Read full offer details
    Applies to this new 2025 GMC Sierra 1500

    * Disclaimer(s)

    • Not available with special financing, lease and some other offers. Must take new retail delivery by 09/02/2025.

      See Trims

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Viewing 1-5 of 15

Inventory

  • 2025 GMC Sierra 1500 SLT

    • MSRP:$70,960
    • Offers:$2,750
    • Final Price:$68,210
    • Conditional Offers:$4,500
    MPG Range:
    15/19,
    Engine:
    6.2L V-8,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    White Frost Tricoat,
    Interior Color:
    Jet Black, Perforated leather-appointed front outb,
    Stock #:
    G25344
    More
    View Details
  • 2025 GMC Sierra 1500 Pro

    • MSRP:$48,080
    • Discount:$3,500
    • Price:$44,580
    • Offers:$3,750
    • Final Price:$40,830
    • Conditional Offers:$4,000
    MPG Range:
    15/19,
    Engine:
    5.3L V-8,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Summit White,
    Interior Color:
    Jet Black, Cloth seat trim,
    Stock #:
    G25292
    More
    View Details
  • 2025 GMC Sierra 1500 Denali

    • MSRP:$76,600
    • Discount:$6,589
    • Price:$70,011
    • Offers:$2,750
    • Final Price:$67,261
    • Conditional Offers:$4,500
    MPG Range:
    15/19,
    Engine:
    6.2L V-8,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Titanium Rush Metallic,
    Interior Color:
    Jet Black, Forge perforated leather seat trim,
    Stock #:
    G25548
    More
    View Details
  • 2025 GMC Sierra 1500 Pro

    • MSRP:$52,525
    • Discount:$3,500
    • Price:$49,025
    • Offers:$3,750
    • Final Price:$45,275
    • Conditional Offers:$4,000
    MPG Range:
    15/18,
    Engine:
    5.3L V-8,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Onyx Black,
    Interior Color:
    Jet Black, Cloth seat trim,
    Stock #:
    G25691
    More
    View Details
  • 2025 GMC Sierra 1500 SLT

    • MSRP:$68,165
    • Discount:$6,589
    • Price:$61,576
    • Offers:$3,750
    • Final Price:$57,826
    • Conditional Offers:$4,000
    MPG Range:
    15/19,
    Engine:
    5.3L V-8,
    Transmission:
    Automatic,
    Drive Line:
    4WD,
    Exterior Color:
    Sterling Metallic,
    Interior Color:
    Jet Black, Perforated leather-appointed front outb,
    Stock #:
    G25721
    More
    View Details
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Specifications

Trims

  MSRP Engine Transmission City/Hwy mpg
Pro 2025 GMC Sierra 1500 Truck Pro Search New $38,300   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $38,500   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $41,600   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $42,900   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $43,100   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $44,000   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $44,900   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $47,300   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Pro 2025 GMC Sierra 1500 Truck Pro Search New $47,600   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
SLE
Search New
$48,800   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Elevation w/3SB
Search New
$50,500   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
SLE
Search New
$51,200   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
SLE
Search New
$52,100   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Elevation w/3VL
Search New
$52,300   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Elevation w/3SB
Search New
$53,100   310-hp 2.7L 4-cyl  8-spd auto  18 / 21  
Elevation w/3SB
Search New
$53,800   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
SLE
Search New
$54,500   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
SLE
Search New
$54,800   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
SLT
Search New
$54,900   355-hp 5.3L 8-cyl  10-spd auto  16 / 20  
Elevation w/3VL
Search New
$54,900   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Elevation w/3SB
Search New
$56,400   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
Elevation w/3SB
Search New
$56,700   310-hp 2.7L 4-cyl  8-spd auto  17 / 19  
SLT
Search New
$58,000   355-hp 5.3L 8-cyl  10-spd auto  15 / 19  
SLT
Search New
$58,700   355-hp 5.3L 8-cyl  10-spd auto  15 / 19  
Denali
Search New
$65,400   355-hp 5.3L 8-cyl  10-spd auto  16 / 20  
AT4
Search New
$66,800   305-hp 3.0L 6-cyl  10-spd auto  22 / 26  
AT4
Search New
$67,300   305-hp 3.0L 6-cyl  10-spd auto  22 / 26  
Denali
Search New
$68,700   355-hp 5.3L 8-cyl  10-spd auto  15 / 19  
Denali
Search New
$69,200   355-hp 5.3L 8-cyl  10-spd auto  15 / 19  
AT4X
Search New
$79,400   305-hp 3.0L 6-cyl  10-spd auto  19 / 20  
Denali Ultimate
Search New
$84,200   420-hp 6.2L 8-cyl  10-spd auto  15 / 19  

Search Through Our New GMC and Buick Model Showroom Near St. Louis

If you're setting out in the St. Louis area for a quality new truck or SUV, our O'Fallon, MO GMC and Buick dealership is the place to shop. With our new model showroom both right here in O'Fallon and with this digital selection you can explore online, you'll see the latest trucks and SUVs from GMC and Buick, a couple of brands that are worth shopping from for incredible rides. See what we currently have available, explore our digital showroom, or visit us from St. Peters, Chesterfield, or St. Charles, MO today to see what we have in stock for new GMC and Buick inventory in O'Fallon.

With a growing focus on trucks and SUVs in the recent years, those are the styles you can expect to find in our new model showroom and throughout the rest of our new Buick and GMC model lineup. Choose any in the range of excellent SUVs we have for sale, from the Buick Envision, Enclave, and Encore, to the GMC Acadia, Terrain, and Yukon. Various sizes and cabin styles, as well as engine levels give you an idea of what each of these new SUVs provides for your family travels around St. Louis, MO and beyond, while the latest Buick and GMC tech will keep everyone safe, connected, and entertained while you're on the go around Chesterfield and St. Charles.

The latest new GMC trucks are excellent options for drivers from St. Peters or O'Fallon who require top-notch towing and hauling, and even high-end 4x4 capabilities. The full-sized GMC Sierra 1500 is a great flagship truck that shows you what to expect from pickups made by this brand. Offered in a variety of cab styles, engine levels, and special editions, you're bound to find the perfect match in a Sierra 1500, or if you need commercial-grade capabilities, check out the GMC Sierra 2500HD or 3500HD. For a smaller, midsized truck, the new GMC Canyon offers a range of versatility you'll love in the St. Louis area.

Explore the new model showroom on display here at O'Fallon Buick GMC and visit today to get going on a quick test drive.

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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