2006 Cadillac CTS engine problems
28 owner complaints filed with NHTSA name the engine on the 2006 Cadillac CTS — 10% of all complaints for this model year.
What owners report
“Engine burns 1quart of oil, 100 miles. Brakes went to floor, brake lines had holes at 69,000 miles. Driver rear axel leaks. 2006 Cadillac CTS is a lemon!! Money Pit !!!”
filed Jun 1, 2026
“The contact owns a 2006 Cadillac CTS. The contact stated that while driving with the cruise control set to 75 MPH, the vehicle was shuddering, and the engine was misfiring. The vehicle was taken to an independent mechanic who determined that the computer was not communicating with the vehicle. The…”
filed May 28, 2025
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Engine problems in other CTS years
| Year | Reports | Share |
|---|---|---|
| 2017 CTS | 1 | 4% |
| 2016 CTS | 4 | 13% |
| 2015 CTS | 4 | 9% |
| 2014 CTS | 8 | 6% |
| 2013 CTS | 7 | 10% |
| 2012 CTS | 6 | 9% |
| 2011 CTS | 13 | 13% |
| 2010 CTS | 10 | 15% |
| 2009 CTS | 49 | 29% |
| 2008 CTS | 22 | 13% |
| 2007 CTS | 22 | 10% |
| 2005 CTS | 24 | 9% |
Other reported problem areas on the 2006 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.