Vehicle Details
2021 GMC Sierra 1500
SLT
Houston, TX 77038
Is this 2021 GMC Sierra 1500 SLT a good deal?
OAV verdict: Unscored
Why: Listed at $24,995, comparable market range $28,991–$36,941, based on 3 comparable listings. Days on lot: 19 days (market average 70 days).
Market price position
$24,995 · $3,996 below market low
- Regional range
- $28,991 – $36,941
- vs. market low
- — $3,996 (14% below)
- Comparable vehicles
- 3
Similar vehicles recently sold in an estimated 24–110 days.
Market Breakdown
Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.
Oscar'S Truck Center, Llc
Houston, TX
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Request availability and out-the-door price
OAV will route your inquiry to Oscar'S Truck Center, Llc for current availability of this 2021 GMC Sierra 1500 SLT and an out-the-door price quote (taxes, fees, addons included).
OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.
About This 2021 GMC Sierra 1500
Listing updated: Jun 8, 2026Listed by an independent dealer in Houston, TX · On lot for 19 days · VIN verifiable at NHTSA
This used 2021 GMC Sierra 1500 SLT is listed at $24,995 by oscar's truck center, llc in Houston, TX 77038. It has 150,220 miles on the odometer. The exterior color is White. It features a 4WD drivetrain with a 3.0L I6 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as Unscored due to insufficient comparable data. Based on 3 similar vehicles in the Houston market, the estimated market range is $28,991 to $36,941. The local market range in TX is $28,991 to $36,941.
This vehicle has been on the lot for 19 days.
Analysis powered by OAV's patented inventory standardization technology (U.S. Patent No. 12,236,477).
Market context
This listing is part of OAV's broader Houston, TX trucks market analysis. OAV compares vehicles using local and regional price-to-market ranges, days-on-lot, comparable count, and demand signals where available.
How this deal is rated
OAV compares this 2021 GMC Sierra 1500 against similar vehicles currently available in the local and regional market — same make, model, and year range, filtered for comparable mileage. Based on where this listing falls in that comparable set, it is rated:
- Great Deal — priced below the typical range for comparable vehicles.
- Fair Price — priced within the expected range for comparable vehicles.
- Overpriced — priced above the typical range for comparable vehicles.
Listings show OAV's PTM-derived deal quality and live market context. OAV-claimed dealers manage their listing profile and route buyer inquiries directly. Paid OAV partners surface additional verification signals.
How this listing is verified
This vehicle listing was aggregated from an independent dealer in Houston, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU9DET9MG331159 can be independently verified via the U.S. Department of Transportation's NHTSA VIN decoder, and safety recalls at NHTSA's recall database.
Vehicle attributes (year, make, model, trim, mileage, location) are standardized using OAV's patented methodology (U.S. Patent No. 12,236,477), which normalizes naming conventions and deduplicates cross-listed inventory across the dealership network. Listing data is refreshed daily; Price-to-Market analysis uses comparable vehicles within the same geographic market.
2021 GMC Sierra 1500 Market in TX
Comparable Vehicles
4,471
Average Price
$40,314
Price Range
$12,994–$102,500
Avg Days on Lot
70
Based on 4,471 comparable 2019-2023 GMC Sierra 1500 listings in TX, the average asking price is $40,314. This listing at $24,995 is $15,319 below average (38% below market). Comparable prices in TX range from $12,994 to $102,500. Similar vehicles spend an average of 70 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in TX
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: SLT — compare trims below)
2020 GMC Sierra 1500
SLT
Abilene, TX
2020 GMC Sierra 1500
SLT
Amarillo, TX
2020 GMC Sierra 1500
SLT
Lubbock, TX
2020 GMC Sierra 1500
SLT
Midland, TX
2020 GMC Sierra 1500
SLT
Odessa, TX
2020 GMC Sierra 1500
SLT
Plainview, TX
2020 GMC Sierra 1500
SLT
San Angelo, TX
2020 GMC Sierra 1500
SLT
Slaton, TX