
Vehicle Details
2026 GMC Sierra 1500
Denali Ultimate
Naperville, IL 60540
Is this 2026 GMC Sierra 1500 Denali Ultimate a good deal?
OAV verdict: Great Deal
Why: Listed at $75,663, comparable market range $76,163–$86,738, based on 15 comparable listings. Days on lot: 76 days (market average 61 days).
Market price position
$75,663 · $500 below market low
- Regional range
- $76,163 – $86,738
- vs. market low
- — $500 (1% below)
- Comparable vehicles
- 15
Similar vehicles recently sold in an estimated 14–55 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.
Dealer Info
Naperville, IL
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About This 2026 GMC Sierra 1500
Listing updated: May 21, 2026Listed by a franchise dealer in Naperville, IL · On lot for 76 days · VIN verifiable at NHTSA
This new 2026 GMC Sierra 1500 Denali Ultimate is listed at $75,663 by a franchise dealer in Naperville, IL 60540. It has 5 miles on the odometer. The exterior color is Black. It features a 4WD drivetrain with a 6.2L V8 engine and Automatic transmission.
OAV's AI-powered Price-to-Market analysis rates this vehicle as a Great Deal — priced below market value. Based on 15 similar vehicles in the Naperville market, the estimated market range is $76,163 to $86,738. The local market range in IL is $76,163 to $86,738.
This vehicle has been on the lot for 76 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 Naperville, IL 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 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 a franchise dealer in Naperville, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTUUHE87TZ312139 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 1500 Market in IL
Comparable Vehicles
5,200
Average Price
$60,622
Price Range
$26,383–$94,153
Avg Days on Lot
61
Based on 5,200 comparable 2024-2028 GMC Sierra 1500 listings in IL, the average asking price is $60,622. This listing at $75,663 is $15,041 above average (25% above market). Comparable prices in IL range from $26,383 to $94,153. Similar vehicles spend an average of 61 days on dealer lots in this market.
Similar GMC Sierra 1500 Listings in IL
8 comparable vehicles within ±2 model years and ±30,000 miles (subject trim: Denali Ultimate — compare trims below)

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