Problems · NHTSA complaints
2009 Cadillac STS problems
Owners filed 15 complaints about the 2009 Cadillac STS with NHTSA between Jun 2010 and Apr 2026. The most-cited component is air bags (5).
Complaints
15
Filed with NHTSA
Crashes
4
Reported by owners
Fires
0
Reported by owners
Injuries
0
People reported injured
Deaths
0
Reported to NHTSA
Complaints by component
One complaint can cite several components
- Air bags5
- Electronic stability control (esc)4
- Steering3
- Engine2
- Service brakes2
- Electrical system1
- Exterior lighting1
- Traction control system1
- Vehicle speed control1
- Wheels1
- Power train1
- Service brakes, hydraulic1
- Equipment1
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.
Data from NHTSA Complaints API · synced Oct 28, 2026NHTSA vehicle page
When complaints were filed
Does it get worse with age? Complaints per calendar year filed
2
0
0
0
2
1
2
3
0
4
0
0
0
0
0
0
1
View as table
| Model year | Complaints filed per calendar year |
|---|---|
| 2010 | 2 |
| 2011 | 0 |
| 2012 | 0 |
| 2013 | 0 |
| 2014 | 2 |
| 2015 | 1 |
| 2016 | 2 |
| 2017 | 3 |
| 2018 | 0 |
| 2019 | 4 |
| 2020 | 0 |
| 2021 | 0 |
| 2022 | 0 |
| 2023 | 0 |
| 2024 | 0 |
| 2025 | 0 |
| 2026 | 1 |
Mileage at failure isn’t a structured field in NHTSA complaint data, so we don’t chart it. Some owners mention it in their reports below.
Top problems in owners’ words
Verbatim from NHTSA complaints, newest first
Air bags
5 reports2 crashes
“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.”
Electronic stability control (esc)
4 reports1 crash
“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.”
Steering
3 reports1 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.”
Engine
2 reports
“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.”
Service brakes
2 reports1 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.”
Electrical system
1 report
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 28, 2026
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.