what it costs new, what it’s worth used, and who has one near you.
The 2006 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.
The view no marketplace shows you
Typical payment
$53/mo $185
Typical asking price
$2,998 $10,502
Median market price by vehicle age
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 141 owner complaints filed on the 2006 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
4 campaigns issued by the manufacturer
Fuel System, Gasoline · Delivery · Fuel Pump
General Motors LLC (GM) is recalling certain model year 2004-2007 Cadillac CTS-V vehicles manufactured October 6, 2003, to March 15, 2007, and 2006-2007 Cadillac STS-V vehicles manufactured June 23, 2005, to March 15, 2007. In the affected vehicles, the electrical terminals of the fuel pump module may overheat resulting in the melting of the flange material.
Campaign 14V542000
Vehicle Speed Control
ON CERTAIN PASSENGER VEHICLES EQUIPPED WITH ALL WHEEL DRIVE AND A 3.6L V6 ENGINE, THE TORQUE MONITORING FUNCTIONS OF THE ELECTRONIC THROTTLE CONTROL (ETC) ARE NOT ENABLED. THESE FUNCTIONS CAN LIMIT ENGINE SPEED AND TORQUE IF UNUSUAL ENGINE CONTROL MODULE (ECM) HARDWARE OR SOFTWARE FAILURES OCCUR.
Campaign 06V007000
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
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.