Is the $24,500 price on this 2018 GMC Sierra 1500 a good deal?

OAV rates this as Fair Price because the asking price of $24,500 is within the typical market range for this vehicle.

What is the average price for a 2018 GMC Sierra 1500 in IL?

Based on 536 comparable listings in IL, the average asking price for a 2016-2020 GMC Sierra 1500 is $28,946, with prices ranging from $8,995 to $46,155.

How long does a 2018 GMC Sierra 1500 typically stay on dealer lots?

Comparable GMC Sierra 1500 listings in IL spend an average of 56 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in Waukegan, IL 60085. VIN: 1GTV2NEC4JZ129257. Mileage: 102,499 miles.

What is the fair market price range for this 2018 GMC Sierra 1500?

OAV's Price-to-Market analysis estimates the fair market range is $21,987 to $38,310, based on 38 comparable vehicles.

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Vehicle Details

VIN1GTV2NEC4JZ129257

TrimSLT

Exterior ColorBlack

Drivetrain4WD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot290

2018 GMC Sierra 1500

SLT

Fair Price

$24,500102,499 mi

Waukegan, IL 60085

Is this 2018 GMC Sierra 1500 SLT a good deal?

OAV verdict: Fair Price

Why: Listed at $24,500, comparable market range $21,987–$38,310, based on 38 comparable listings. Days on lot: 290 days (market average 56 days).

Market price position

Lowest comparable ($)

21,987

Highest comparable ($)

38,310

This vehicle's price ($)

24,500

$24,500 · within market range

$21,987comparable$38,310

Regional range: $21,987 – $38,310
vs. market: $2,513 above low · $13,810 below high
Comparable vehicles: 38

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 14–71 days.

Verify before inquiring

This listing has been on market about 4.1x longer than typical for similar vehicles (cohort sells in 14–71 days; this one is at 290). Long days-on-lot on a fast-turn cohort can signal title concerns, mechanical issues, or pricing the dealer won't actually honor. Recommend a vehicle history report before spending more time.

Market Breakdown

Local = comparable listings in the same metro. Regional = comparable listings across the broader state or multi-state region. Both ranges refresh daily.

Regional Range$21,987 – $38,310

Dealer Info

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Waukegan, IL

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About This 2018 GMC Sierra 1500

Listing updated: May 26, 2026

Listed by an independent dealer in Waukegan, IL · On lot for 290 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLT is listed at $24,500 by an independent dealer in Waukegan, IL 60085. It has 102,499 miles on the odometer. The exterior color is Black. It features a 4WD drivetrain with a 5.3L V8 engine and Automatic transmission.

OAV's AI-powered Price-to-Market analysis rates this vehicle as Fair Price — priced at market value. Based on 38 similar vehicles in the Waukegan market, the estimated market range is $21,987 to $38,310.

This vehicle has been on the lot for 290 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 Waukegan, 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 2018 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 Waukegan, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 1GTV2NEC4JZ129257 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.

2018 GMC Sierra 1500 Market in IL

Comparable Vehicles

536

Average Price

$28,946

Price Range

$8,995–$46,155

Avg Days on Lot

Based on 536 comparable 2016-2020 GMC Sierra 1500 listings in IL, the average asking price is $28,946. This listing at $24,500 is $4,446 below average (15% below market). Comparable prices in IL range from $8,995 to $46,155. Similar vehicles spend an average of 56 days on dealer lots in this market.