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
01 —By component

Complaints by component

One complaint can cite several components
  1. Air bags5
  2. Electronic stability control (esc)4
  3. Steering3
  4. Engine2
  5. Service brakes2
  6. Electrical system1
  7. Exterior lighting1
  8. Traction control system1
  9. Vehicle speed control1
  10. Wheels1
  11. Power train1
  12. Service brakes, hydraulic1
  13. 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
02 —Trend

When complaints were filed

Does it get worse with age? Complaints per calendar year filed
View as table
Model yearComplaints filed per calendar year
20102
20110
20120
20130
20142
20151
20162
20173
20180
20194
20200
20210
20220
20230
20240
20250
20261

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.

03 —Owner reports

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.”
Owner complaint to NHTSAFiled Dec 20, 2019Air bagsCrash reportedODI 11290251

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.”
Owner complaint to NHTSAFiled Dec 25, 2019Electrical system, Exterior lighting, Electronic stability control (esc)ODI 11291164

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.”
Owner complaint to NHTSAFiled Oct 26, 2019Steering, Air bags, Electronic stability control (esc)Crash reportedODI 11271159

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.”
Owner complaint to NHTSAFiled Apr 20, 2026EngineODI 11732370

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.”
Owner complaint to NHTSAFiled Sep 5, 2019Traction control system, Service brakesCrash reportedODI 11253511

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.