GMC Sierra 1500 Price in Ontario, CA

As of October 17, 2026, there are 117 GMC Sierra 1500 vehicles available at 2 dealerships in Ontario, CA. Local dealers are pricing competitively — the average selling price is $2,812 below MSRP, with 100% of inventory at or under sticker. 2 of 2 dealers are currently pricing below MSRP on average. Prices range from $52,220 to $84,290, with a median of $59,570.

Across California (3,475 listings) the average is $1,476 below MSRP (97% at/below MSRP) — Ontario is priced about $1,336 cheaper than California as a whole. See the Sierra 1500 in California overview. These are advertised prices — a negotiated deal (incentives, dealer discounts) often beats them.