what it costs new, what it’s worth used, and who has one near you.
The 2005 Cadillac STS is a vehicle we track across the used market in Canada. A 3-year-old one keeps roughly 30% of a current model's market price — what actually matters over five years of ownership.
Median market price by vehicle age
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Fuel economy & range: Natural Resources Canada (Open Government Licence — Canada). Safety recalls & owner-reported complaints: US National Highway Traffic Safety Administration (public domain); complaint shares are a relative signal, not a failure rate. Prices, payments, depreciation, listing counts and dealer inventory: Conquest market data; payment estimates use market-average terms and are not an offer of credit. Independent service — not affiliated with or endorsed by Cadillac.
Owner-reported problems and open safety recalls
Most-reported problems
Across 101 owner complaints filed on the 2005 Cadillac STS
Share of complaints naming each system — a signal of what owners report most on this model, not a failure rate. The denominator is people who filed a complaint, not every owner. Complaints are filed with the US regulator; the same models are sold in Canada.
Safety recalls
3 campaigns issued by the manufacturer
Power Train · Axle Assembly · Axle Shaft · Seal
ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
Campaign 07V589000
Fuel System, Gasoline · Delivery
CERTAIN VEHICLES EQUIPPED WITH V6 ENGINES MAY HAVE A CONDITION WHERE FUEL IS NO LONGER SUPPLIED TO THE ENGINE. THIS CONDITION OCCURS WITHOUT THE ILLUMINATION OF THE FUEL LEVEL LOW INDICATOR LIGHT OR THE WARNING CHIME.
Campaign 06V020000
Suspension · Rear
CERTAIN VEHICLES HAVE A LEFT OR RIGHT REAR SUSPENSION TOE LINK THAT COULD SEPARATE BECAUSE OF AN INCORRECT WELD.
Campaign 06V125000
Recall campaigns are manufacturer-issued and fixed free of charge. This is the US campaign set matched by year, make and model — it is not a check against a specific VIN, and Canadian campaigns may differ.