2006 Cadillac STS: common problems and reliability
One of the worst STS years.
One of the Cadillac STS years to avoid. All STS years
141 owner complaints, most about air bags. 4 recalls.
Should I buy a 2006 STS?The 2006 Cadillac STS has 141 owner-filed NHTSA complaints and 4 recalls on record. The most-reported areas are air bags and electrical system.
Safety record for the 2006 model year
Source: NHTSA complaints and recalls filed for 2006 Cadillac STS vehicles (US, public record).
The Year Score compares this year with other STS years only. How we score it
Is 2006 a good year for the STS?
Across the 7 STS model years we track, complaint volume runs from 4 (2010) to 141 (2006). With 141 complaints, the 2006 STS sits above the model's median of 50.
These are raw NHTSA complaint totals, not adjusted for how many cars sold or how long each model year has been on the road. Older and higher-selling years accumulate more complaints.
Where owners report problems
Recalls affecting the 2006 STS
fuel system, gasoline:delivery:fuel pump
Campaign 14V542000General 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.
vehicle speed control
Campaign 06V007000ON 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.
power train:axle assembly:axle shaft:seal
Campaign 07V589000ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE SPECIFICATIONS AND MAY EXPERIENCE A FLUID LEAK.
fuel system, gasoline:delivery
Campaign 06V020000CERTAIN 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.
What owners say across generations
Sentiment is mixed and heavily dependent on model year and powertrain.
Owner insights cover all generations of the STS. See the full STS owner picture and every model year.
Typical used price
Used STS listings typically run $6,080–$9,349 across 2005 to 2011 model years.
Other STS model years
Compare every STS year side by side to see how 2006 ranks against the rest.
Compare the STS against its rivals
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