2005 Cadillac STS: common problems and reliability
One of the worst STS years.
One of the Cadillac STS years to avoid. All STS years
101 owner complaints, most about electrical system. 3 recalls.
Should I buy a 2005 STS?The 2005 Cadillac STS has 101 owner-filed NHTSA complaints and 3 recalls on record. The most-reported areas are electrical system and power train.
Safety record for the 2005 model year
Source: NHTSA complaints and recalls filed for 2005 Cadillac STS vehicles (US, public record).
The Year Score compares this year with other STS years only. How we score it
Is 2005 a good year for the STS?
Across the 7 STS model years we track, complaint volume runs from 4 (2010) to 141 (2006). With 101 complaints, the 2005 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 2005 STS
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.
suspension:rear
Campaign 06V125000CERTAIN VEHICLES HAVE A LEFT OR RIGHT REAR SUSPENSION TOE LINK THAT COULD SEPARATE BECAUSE OF AN INCORRECT WELD.
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 2005 ranks against the rest.
Compare the STS against its rivals
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