Market Value Guide
Real market data from 1 active listings. Know what a 2018 gmc sierra is really worth before you buy.
Data refreshed daily from AutoTrader
Sample Size
1
listings analyzed
Average Price
$38,999
from $38,999 to $38,999
Median Price
$38,999
above average
Avg Mileage
143,377 mi
for 2018
For a 2018 gmc sierra, the median observed asking price is $38,999. Listings near or below the 25th percentile can be strong candidates, but mileage, trim, accident history, dealer fees, and local supply should be checked before negotiating.
The 2018 gmc sierra has an average market price of $38,999 based on 1 active listings on AutoTrader. Prices range from $38,999 to $38,999, with a median of $38,999. The middle 50% of listings fall between $38,999 and $38,999, representing the typical fair market range. The average mileage across all 2018 gmc sierra listings is 143,377 miles. Use SmartCarAgent to analyze a specific 2018 gmc sierra listing and get a personalized Deal Score, market comparison, and AI negotiation tips.
Based on 1 active listings, the 2018 gmc sierra market price ranges from $38,999 to $38,999. The median price is $38,999, giving you a clear benchmark for negotiations.
A fair deal typically falls between $38,999 and $38,999 — that's the middle 50% of transactions. Listings under $38,999 are rare finds worth grabbing quickly.
When evaluating a 2018 gmc sierra, check the service history and look for consistent maintenance records. Vehicles with complete service documentation typically command higher prices and are less likely to have hidden issues.
The 1 listings in our database include a wide range of conditions and mileages. Use the mileage (143,377 mi average for this segment) as one indicator of wear — lower-mileage examples generally cost more upfront but may save on repairs long-term.
SmartCarAgent tip: Always verify the VIN history and consider a third-party inspection before purchasing any used vehicle.
Bottom 25%
Under $38,999
Great deals
Mid 50% (Fair Range)
$38,999 – $38,999
Typical market pricing
Top 25%
Over $38,999
Overpriced
| Year | Listings | Avg Price |
|---|---|---|
| 2026 gmc sierra | 3 | $98,538 |
| 2025 gmc sierra | 4 | $68,568 |
| 2024 gmc sierra | 5 | $68,798 |
| 2023 gmc sierra | 1 | $40,962 |
| 2022 gmc sierra | 3 | $43,977 |
| 2020 gmc sierra | 1 | $60,000 |
| 2018 gmc sierra | 1 | $38,999 |
| 2016 gmc sierra | 2 | $41,755 |
| 2000 gmc sierra | 1 | $8,500 |
Sample Size
1
Market
United States and Canada
Refresh
Updated daily
Use these figures as a market baseline, then verify the VIN, title, accident history, taxes, dealer fees, financing terms, and inspection results before buying.
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