# Used 2018 GMC Canyon Extended Cab prices

> The average asking price for a used 2018 GMC Canyon Extended Cab is $20,175, with 70,878 miles on average, across 5 cars for sale at U.S. dealers as of Nov 15, 2026.

Data as of Nov 15, 2026 · [ottoquest.com](https://ottoquest.com/models/gmc-canyon-extended-cab/2018) · [all GMC Canyon Extended Cab model years](https://ottoquest.com/models/gmc-canyon-extended-cab.md)

- Average asking price: $20,175 (median $18,995)
- Average miles: 70,878
- For sale now: 5
- Average days listed: 26 (of 3 with a listing date)

## 2018 GMC Canyon Extended Cab prices by state

Too few cars in any one state yet.

## Other GMC Canyon Extended Cab years

| Year | Average asking | Miles | For sale |
| --- | ---: | ---: | ---: |
| [2022](https://ottoquest.com/models/gmc-canyon-extended-cab/2022.md) | $28,723 | 12,260 | 3 |
| [2021](https://ottoquest.com/models/gmc-canyon-extended-cab/2021.md) | $19,990 | 87,288 | 1 |
| [2020](https://ottoquest.com/models/gmc-canyon-extended-cab/2020.md) | $22,541 | 60,902 | 4 |
| [2019](https://ottoquest.com/models/gmc-canyon-extended-cab/2019.md) | $17,448 | 92,633 | 2 |
| **2018** | $20,175 | 70,878 | 5 |
| [2017](https://ottoquest.com/models/gmc-canyon-extended-cab/2017.md) | $22,290 | 64,470 | 2 |
| [2016](https://ottoquest.com/models/gmc-canyon-extended-cab/2016.md) | $22,470 | 59,565 | 10 |

## Used 2018 GMC Canyon Extended Cab prices: common questions

### What is a fair price for a used 2018 GMC Canyon Extended Cab?

Used 2018 GMC Canyon Extended Cabs for sale at U.S. dealers ask $20,175 on average (half ask less than $18,995), across 5 cars. The cars for sale have 70,878 miles on average: one with fewer miles is worth more, and one with more is worth less. To check one car's price against cars of its trim and mileage, enter its VIN in OttoQuest's free Deal Check.

## More

- Check one car's price: https://ottoquest.com/deal-check.md?vin=<VIN>&price=<price>&mileage=<miles> (markdown; the page is https://ottoquest.com/deal-check)
- Value a car by model, trim, year and mileage: https://ottoquest.com/value
- Free alerts for new listings and price drops: https://ottoquest.com/deals

Used and certified cars for sale at U.S. dealers, each car counted once. Days listed are the dealer's own days on market where they publish it. Price moves compare the same cars at both ends of the window.

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OttoQuest · [this page](https://ottoquest.com/models/gmc-canyon-extended-cab/2018). Prices are asking prices of cars for sale in the U.S. and recorded sold prices; a guide to the price, not to a car's condition.