U.S. Patent No. 12,236,477 — Patented Automotive Data Standardization Technology
OAV
2026 GMC Sierra 2500HD

Vehicle Details

VIN1GT4UPEY3TF222398
TrimAT4
Exterior ColorGray
Drivetrain4WD
Engine6.6L V8
TransmissionAutomatic
Fuel TypeDiesel
Inventory Typenew
MSRP$93,450
Days on Lot91

2026 GMC Sierra 2500HD

AT4

Unscored
$81,450Mileage not verified

Rockwall, TX 75087

Is this 2026 GMC Sierra 2500HD AT4 a good deal?

OAV verdict: Unscored

Why: Listed at $81,450, comparable market range $81,870–$83,104, based on 5 comparable listings. Days on lot: 91 days (market average 51 days).

Market price position

81,870
83,104
81,450

$81,450 · $420 below market low

$81,870comparable$83,104
Regional range
$81,870 – $83,104
vs. market low
— $420 (1% below)
Comparable vehicles
5
Demand-Verified· Backed by recent sales data
Faster-than-average sell-through

Similar vehicles recently sold in an estimated 853 days.

What does Demand-Verified mean?

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$81,870 – $83,104
Regional Range$68,187 – $105,456

Dealer Info

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Rockwall, TX

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About This 2026 GMC Sierra 2500HD

Listing updated: May 18, 2026

Listed by a franchise dealer in Rockwall, TX · On lot for 91 days · VIN verifiable at NHTSA

This new 2026 GMC Sierra 2500HD AT4 is listed at $81,450 by a franchise dealer in Rockwall, TX 75087. The exterior color is Gray. It features a 4WD drivetrain with a 6.6L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Unscored due to insufficient comparable data. Based on 5 similar vehicles in the Rockwall market, the estimated market range is $81,870 to $83,104. The local market range in TX is $81,870 to $83,104.

This vehicle has been on the lot for 91 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 Rockwall, 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 2026 GMC Sierra 2500HD 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:

This rating refreshes daily as inventory enters and leaves the market. The dealer on this listing has not yet activated on OAV, so the business name and contact details are anonymized here. Activated (paying) dealers appear with their verified business name and a Verified badge.

How this listing is verified

This vehicle listing was aggregated from a franchise dealer in Rockwall, TX, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GT4UPEY3TF222398 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.

2026 GMC Sierra 2500HD Market in TX

Comparable Vehicles

9,188

Average Price

$81,651

Price Range

$38,500–$132,539

Avg Days on Lot

51

Based on 9,188 comparable 2024-2028 GMC Sierra 2500HD listings in TX, the average asking price is $81,651. This listing at $81,450 is $201 below average (0% below market). Comparable prices in TX range from $38,500 to $132,539. Similar vehicles spend an average of 51 days on dealer lots in this market.

Similar GMC Sierra 2500HD Listings in TX

8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: AT4 — compare trims below)