2009 Cadillac CTS electrical system problems
26 owner complaints filed with NHTSA name the electrical system on the 2009 Cadillac CTS — 16% of all complaints for this model year.
What owners report
“May car just stopped working come to find out water was leaking from my sunroof which I always keep my closed. Found out water in leaking from sunroof to my mom board now mechanic is saying to take to dealership I no its gonna be a lot of money to fix electric issue smh.”
filed May 15, 2023
“The contact owns a 2009 Cadillac CTS. The contact stated that after refueling, the vehicle was not able to start immediately. The accelerator pedal was pumped to start the vehicle. Additionally, there was an abnormal sound coming from the rear of the vehicle. The contact related the failure to a…”
filed May 12, 2022
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related recalls
- This defect can affect the safe operation of the airbag systemCampaign 14V394000 · Jul 2, 2014
- Electrical SystemCampaign 10V240000 · Jun 4, 2010
Related service bulletins
This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
23-NA-001 · Service Bulletin/Repair Instructions · issued Mar 28, 2025
Electrical System problems in other CTS years
| Year | Reports | Share |
|---|---|---|
| 2017 CTS | 2 | 8% |
| 2016 CTS | 10 | 32% |
| 2015 CTS | 4 | 9% |
| 2014 CTS | 13 | 9% |
| 2013 CTS | 26 | 36% |
| 2012 CTS | 10 | 15% |
| 2011 CTS | 20 | 20% |
| 2010 CTS | 16 | 24% |
| 2008 CTS | 39 | 22% |
| 2007 CTS | 41 | 19% |
| 2006 CTS | 43 | 16% |
| 2005 CTS | 39 | 14% |
Other reported problem areas on the 2009 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.