Live US dealer listings Median-priced benchmark Updated 2026-10-17
Market price · Used 2018 GMC Canyon 193 listings tracked

Used 2018 GMC Canyon Price in the US

A used 2018 GMC Canyon in the US typically lists for $17,999–$23,989, with a median asking price of $20,499 across 193 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $10,975, a 2018 Work in New Braunfels, TX — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.

Used 2018 GMC Canyon · asking prices193 listings
$12k$30k
Typical range
$17,999 – $23,989
Median
$20,499
Cheapest 5%
under $13,358
Cheapest listed now
$10,975

Browse by model year

typical price per year
More years (12)

Cheapest 10 listed right now

ranked by price
  1. 2018 GMC Canyon
    $10,975
    2018 GMC Canyon Work
    122,112 mi · New Braunfels, TX · Kachow Motors
    View listing →
  2. $11,995
    2018 GMC Canyon SLE
    195,569 mi · Baton Rouge, LA · Southeast Auto Inc - Baton Rouge
    View listing →
  3. 2018 GMC Canyon
    $11,995
    2018 GMC Canyon Work
    165,117 mi · Lake Station, IN · Auto Wholesale Hobart Ls
    View listing →
  4. $12,000
    2018 GMC Canyon SLE
    150,469 mi · Somerville, OH · Stewart Automotive LLC
    View listing →
  5. 2018 GMC Canyon
    $12,127
    2018 GMC Canyon Work
    144,189 mi · Colton, CA · The Truck Boutique
    View listing →
  6. $12,491
    2018 GMC Canyon Work
    123,625 mi · Apache Junction, AZ · Ideal Cars
    View listing →
  7. 2018 GMC Canyon
    $12,998
    2018 GMC Canyon Work
    101,914 mi · Blaine, WA · Emerald Motors
    View listing →
  8. 2018 GMC Canyon
    $12,999
    2018 GMC Canyon Work
    155,030 mi · Bakersfield, CA · Paraiso Auto Sales
    View listing →
  9. 2018 GMC Canyon
    $13,111
    2018 GMC Canyon Work
    125,820 mi · Signal Hill, CA · Glenn E Thomas Dodge Chrysler Jeep
    View listing →
  10. $13,299
    2018 GMC Canyon Work
    161,228 mi · Dallas, GA · DriveMax Inc.
    View listing →

These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2018 GMC Canyon asks $17,999–$23,989. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.

FAQ

How much does a used 2018 GMC Canyon cost?

A used 2018 GMC Canyon in the US typically lists for $17,999 to $23,989, with a median asking price of $20,499 across 193 active US dealer listings. Nine in ten are priced between $13,358 and $28,537 (as of 2026-10-17, source: UnderMarket Cars).

Is $20,000 a good price for a used 2018 GMC Canyon?

That sits at about the market median ($20,499) for a used 2018 GMC Canyon. Under $17,999 puts you in the cheapest quarter of active US listings and under $13,358 in the cheapest 5%; above $28,537 is the priciest 5% (as of 2026-10-17).

What is the cheapest used 2018 GMC Canyon for sale right now?

$10,975 — a 2018 GMC Canyon Work in New Braunfels, TX, $9,524 under the median (as of 2026-10-17).

Are these MSRP or real asking prices?

Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.

How often are prices updated?

The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2018 GMC Canyon page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.

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Prices updated 2026-10-17. Data covers active dealer listings across the USA.