Gmc Heavy Conventional depreciation
A 2018 Gmc Heavy Conventional averages $23,236 — a 2013 averages $11,221 (52% lower).
Updated July 16, 2026 · Live dealer listing data
Average price by model year
| Year | Average price | Avg. mileage | vs. previous year | Listings |
|---|---|---|---|---|
| 2018 | $23,236 | 90,824 | +$2,932 | 72 |
| 2017 | $20,304 | 104,901 | +$7,397 | 74 |
| 2015 | $12,907 | 134,422 | +$2,047 | 15 |
| 2014 | $10,860 | 164,395 | −$361 | 35 |
| 2013 | $11,221 | 126,644 | — | 17 |
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.
for dealers
Sell these? Know your number.
VinAssessment shows how your inventory is priced against every competing listing in your market — every VIN you own, new and pre-owned, updated daily.
No credit card required.