2009 Cadillac STS problems

Filed Apr 20, 2026 · Engine · WV

The known timing chain issue GM done a warranty for to fix it but won’t fix it now. My car is running sluggish because of it and had numerous times that it wouldn’t go up to the speed limit almost caused accidents because of it and I’m afraid to even drive it anymore knowing that it’s a time bomb waiting to happen that could blow up on the highway that can cause accidents.

Filed Dec 25, 2019 · Driver assistance, Electrical · AR

When driving in rain the smallest amount of water will cause the reduced engine power to engage and it does not go off until the vehicle has sat for a long amount of time. Extremely dangerous. First the ABS light comes on and then you lose power. 3rd row LED taillight out... 400 to fix. Purchased in march of 2018 with 93k miles. Currently at 104k.

Filed Dec 20, 2019 · Airbags · 80,000 miles · MT · crash

My airbags did not deploy and my traction control failed. The airbag light remains on and there is a faulty code. The vehicle lost ability to control it to turn. I went straight into the fence. The airbags were not addressed by the body shop or repair shop.

Filed Oct 26, 2019 · Airbags, Driver assistance · 90,000 miles · MT · crash

The car traction control failed and the vehicle had the service stability system come on. The ABS light was lit and the vehicle would not accelerate or turn easily. The vehicle went into the ditch. This vehicle had headlights prior to the incident with bulbs popping out inside and moisture. After the repairs were done by the body shop the new headlights have had that same problem. The airbags never came out, and there is a message displayed indicating they needed service. It was never addressed by the body shop. Also prior to the incident the steering had an issue causing pain to my shoulder. The diagnosis was wrong after the steering service light remained after a gear replacement and the same issue caused pain. Time passed and the shoulder got worse. There has been 2 wheel sensors with issues. The dealer never told me that there was a special warranty for the timing belt when I bought the car. I am also now having issues with the computer screen. I cannot change the time anymore.

Filed Sep 5, 2019 · Brakes, Driver assistance · 70,000 miles · MT · crash

Tl* the contact owns a 2009 cadillac sts. While driving approximately 15 MPH, the traction control failed and the ABS warning indicator illuminated. When the brake pedal was depressed, the vehicle continued moving forward. The contact crashed the front driver's side of the vehicle into a ditch. The air bags did not deploy. There were no injuries and a police report was not filed. The vehicle was unable to be driven and was towed to rimrock cadillac gmc (located at 840 shiloh rd, billings, mt 59106, (406) 651-5000). The dealer diagnosed that the traction control needed to be serviced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was 70,000.

Filed Nov 5, 2017 · Airbags · 145,000 miles · IL

Takata recall. Passenger seat, passenger detect sensor (pps) stopped working. No physical damage. Passenger present light says, passenger air bag off. Air bag dash light always on. I checked wiring under the seat and can not visually see any damage to the wiring going to the seat cushion sensor or the seat buckle sensor.

Filed Jan 6, 2017 · Brakes, Driver assistance · 140,000 miles · OH

Vehicle detects fault and displays message to service stability control system. Specific problem not yet diagnosed. Within a few moments, the display states that engine power is reduced. This causes a very unsafe condition as the vehicle slows to 10-15 MPH. Pressing gas pedal causes transmission to downshift to lower gear slowing vehicle further. Cannot safely maneuver in traffic, brakes require much higher pedal pressure due to low vacuum boost after engine power reduced. Insufficient warning that this is happening. Problem is not with engine or powertrain, but engine power is cut (engine runs very rough as a result) in response to detected stability system error. Engine runs fine if turned off and restarted. No overheating, oil level is fine, gasoline is good, no external problems. After restarting car drives fine initially, event recurs within 1 mile. Very difficult to try to justify this kind of intentional vehicle control behavior. Extremely poor design that causes an unsafe condition when a stability system error is detected.

Filed Jan 6, 2017 · Acceleration, Driver assistance · 140,000 miles · OH

Tl* the contact owns a 2009 cadillac sts. While driving various speeds, the vehicle would decelerate independently and the stability system warning indicator illuminated. The contact coasted over to the side of the road and waited a few minutes before resuming driving. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 140,000.

Filed Jun 27, 2016 · Wheels · 75,000 miles · OH

I purchased a 2009 sts in august of 2014. I am having a problem with the wheel bearing hubs going bad. I have replaced both front. The front left side has been changed twice in a 13 month period. Unfortunately the part only has a 1 year warranty. I've also had the right rear changed in may of 2015 and now it's june 2016 and has gone bad. I have no extended warranty,I'm just curious why this particular part went bad in the time frame that it did? I called the salesman at the dealer about the first incident to see if he could do something to help with the repair since it was about 6 months after I purchased the car. I actually bought it at thomson and mcconnell cadillac in cincinnati, ohio, of course he told me that he wished there was something he could do. I won't go there again. I have about or close to 90,000 miles on it at this time. I have never had to have this type of repair on any vehicle in my life. My previous vehicle was a 2006 escalade platinum and the only major thing that had to be replaced was a water pump. I wished I had kept it because it was faithful and paid for. Now I have a 6 year loan on a car that keeps repeating the same mechanical malfunctions along with some other things. With the age of the car at this point I do expect to have to replace some parts, but the same part that seems like it's going to be a yearly thing is ridiculous. I am very disappointed in cadillac motors corp... This is my third caddy. I also have a 1999 catera, but I won't even get into the problems that I've had with that one. The appearance of these cars look very stylish inside and out, but the problems that go along with it is not worth it in my opinion. I will never buy another cadillac ever, even if I was to hit the powerball and was able to buy a new one off of the floor with a warranty. This is my vent on how I feel. Sorry cadillac motors and thomson and mcconnell

Filed Apr 16, 2016 · Airbags · 57,500 miles · CA

Started car to pull out of garage airbag light came on. Took to dealer who said airbags are disabled and new module needs changing at cost of $900.00.