2005 Cadillac STS power train problems
18 owner complaints filed with NHTSA name the power train on the 2005 Cadillac STS — 18% of all complaints for this model year.
What owners report
“The contact owns a 2005 Cadillac STS. The contact stated that while the vehicle was parked in the driveway, the contact became aware of a fluid leak. There was no warning light illuminated. The vehicle was driven to an independent mechanic where it was diagnosed with a pinion seal leak on the rear…”
filed Jan 31, 2025
“Without warning my transmission stopped working . I can move the greer with out it collecting any greer . No engine check light nothing . I pulled the parking lot and had to be pushed out street .”
filed Nov 1, 2018
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- ON CERTAIN PASSENGER VEHICLES, THE REAR AXLE PINION SEAL DOES NOT MEET ALL OF THE…Campaign 07V589000 · Dec 20, 2007
Power Train problems in other STS years
| Year | Reports | Share |
|---|---|---|
| 2008 STS | 6 | 12% |
| 2007 STS | 5 | 10% |
| 2006 STS | 13 | 9% |
Other reported problem areas on the 2005 Cadillac STS
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.