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
“el carro se bloquea tanto en direccion como en velocidades. pareciera ser que pierde brake fluid and gasoline”
filed Jan 18, 2022
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.