Is the $19,988 price on this 2018 GMC Sierra 1500 a good deal?

OAV rates this as a Great Deal because the asking price of $19,988 is below the typical market range for this vehicle.

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

Based on 481 comparable listings in IL, the average asking price for a 2016-2020 GMC Sierra 1500 is $28,296, 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 59 days on dealer lots.

Where is this 2018 GMC Sierra 1500 located?

This vehicle is listed in Springfield, IL 62702. VIN: 3GTU2NEC1JG638329. Mileage: 168,542 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 $21,995 to $31,257, based on 9 comparable vehicles.

Vehicle Details

VIN3GTU2NEC1JG638329

TrimSLT

Exterior ColorWhite

Drivetrain4WD

Engine5.3L V8

TransmissionAutomatic

Fuel TypeUnleaded

Inventory Typeused

Days on Lot102

2018 GMC Sierra 1500

SLT

Unscored

$19,988168,542 mi

Springfield, IL 62702

Is this 2018 GMC Sierra 1500 SLT a good deal?

OAV verdict: Unscored

Why: Listed at $19,988, comparable market range $21,995–$31,257, based on 9 comparable listings. Days on lot: 102 days (market average 59 days).

Market price position

Lowest comparable ($)

21,995

Highest comparable ($)

31,257

This vehicle's price ($)

19,988

$19,988 · $2,007 below market low

$21,995comparable$31,257

Regional range: $21,995 – $31,257
vs. market low: — $2,007 (9% below)
Comparable vehicles: 9

Demand-Verified· Backed by recent sales data

Similar vehicles recently sold in an estimated 14–71 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$29,995 – $29,995

Regional Range$21,995 – $31,257

Dealer Info

Hidden

Springfield, IL

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About This 2018 GMC Sierra 1500

Listing updated: May 20, 2026

Listed by an independent dealer in Springfield, IL · On lot for 102 days · VIN verifiable at NHTSA

This used 2018 GMC Sierra 1500 SLT is listed at $19,988 by an independent dealer in Springfield, IL 62702. It has 168,542 miles on the odometer. The exterior color is White. 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 Unscored due to insufficient comparable data. Based on 9 similar vehicles in the Springfield market, the estimated market range is $21,995 to $31,257. The local market range in IL is $29,995 to $29,995.

This vehicle has been on the lot for 102 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 Springfield, 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.

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 an independent dealer in Springfield, IL, one of 57,000+ U.S. dealerships in OAV's nationwide inventory network.The VIN 3GTU2NEC1JG638329 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

481

Average Price

$28,296

Price Range

$8,995–$46,155

Avg Days on Lot

Based on 481 comparable 2016-2020 GMC Sierra 1500 listings in IL, the average asking price is $28,296. This listing at $19,988 is $8,308 below average (29% below market). Comparable prices in IL range from $8,995 to $46,155. Similar vehicles spend an average of 59 days on dealer lots in this market.