The average asking price for a used 2020 GMC Canyon Crew Cab is $25,470, with 72,087 miles on average, across 15 cars for sale at U.S. dealers as of Nov 10, 2026.
Used 2020 GMC Canyon Crew Cabs for sale at U.S. dealers ask $25,470 on average (half ask less than $24,590), across 15 cars. The cars for sale have 72,087 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.
The 2020 asks $25,470 on average with 72,087 miles; the 2019 asks $21,808 with 84,754 miles, and the 2021 asks $27,568 with 66,876 miles.
Used and certified cars for sale at US 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.
