The median asking price for a GMC Sierra 2018 on the Canadian market is $31,990, with most listings between $31,990 and $31,990. The lowest verified ask right now is $31,990. Prices are live asking prices from 1 verified listings.

Pricing has held steady over the last 30 days with few cuts. The best verified offer is $31,990 versus a $31,990 median — the live book below shows how each ask stacks up.

There is 1 GMC Sierra 2018 listed for sale across the verified Canadian market, with 0 sightings in the last 30 days.

A GMC Sierra 2018 sits on the market for about 68 days on average before selling or delisting. Listings priced below the $31,990 median typically move faster.

Every figure is derived from live asking prices on verified listings across the Canadian market — never estimates or MSRP. History blends daily book snapshots with price events; the best offer must sit within striking distance of the median, so junk asks never own the quote. Updated as of 2026-10-26.