IsItFair.caReal Ontario prices, last 30 days · by OmniaAuto
Is $89,988 fair for a 2025 GMC Sierra HD in Ontario?
A used 2025 Sierra HD typically sells for $89,988 in Ontario. The fair price depends most on mileage:
at 30,000 km$83,440 to $95,494from 7 cars at this mileage
at 60,000 km$80,455 to $92,509estimated from nearby mileages
at 100,000 km$74,210 to $86,264estimated from nearby mileages
Listed in the last 30 days12
Sold in that time4
Still for sale8
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From 12 used 2025 Sierra HDs listed by dealers in Ontario in the last 30 days, 4 of them already sold. A car listed at several dealerships is counted once. Ranges are the middle half of prices at that mileage; “estimated” means few cars were listed at exactly that mileage. How it works.