U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
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Vehicle Details

VIN3GTU9DET9MG331159
TrimSLT
Exterior ColorWhite
Drivetrain4WD
Engine3.0L I6
TransmissionAutomatic
Fuel TypeDiesel
Inventory Typeused
Days on Lot19

2021 GMC Sierra 1500

SLT

Unscored
$24,995150,220 mi

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

28,991
36,941
24,995

$24,995 · $3,996 below market low

$28,991comparable$36,941
Regional range
$28,991 – $36,941
vs. market low
— $3,996 (14% below)
Comparable vehicles
3
Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 24110 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.

Local Range$28,991 – $36,941
Regional Range$24,995 – $43,825

Oscar'S Truck Center, Llc

Houston, TX

OAV routes your inquiry; pricing, taxes, fees, and availability come from the dealer.

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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, 2026

Listed 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:

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)