2015 Cadillac CTS power train problems
19 owner complaints filed with NHTSA name the power train on the 2015 Cadillac CTS — 41% of all complaints for this model year.
What owners report
“The contact owns a 2015 Cadillac CTS. The contact stated while driving 65 MPH, the vehicle shuddered and made an abnormally loud sound. The contact exited the highway and drove to the nearest mechanic shop at a gas station. The mechanic diagnosed the vehicle and determined that the rear…”
filed Jul 16, 2025
“The contact owns a 2015 Cadillac CTS. The contact stated that there was an abnormal loud clunking sound coming from the rear end of the vehicle while the vehicle was shifting into gears. The vehicle was taken to AMCO Transmissions & Total Car Care, where it was diagnosed that the rear differential…”
filed Oct 4, 2024
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Power Train problems in other CTS years
| Year | Reports | Share |
|---|---|---|
| 2017 CTS | 9 | 35% |
| 2016 CTS | 9 | 29% |
| 2014 CTS | 84 | 58% |
| 2013 CTS | 13 | 18% |
| 2012 CTS | 4 | 6% |
| 2011 CTS | 22 | 22% |
| 2010 CTS | 9 | 13% |
| 2009 CTS | 28 | 17% |
| 2008 CTS | 21 | 12% |
| 2007 CTS | 33 | 15% |
| 2006 CTS | 45 | 17% |
| 2005 CTS | 82 | 30% |
Other reported problem areas on the 2015 Cadillac CTS
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.