Problems · NHTSA complaints

2011 Cadillac STS problems

Owners filed 7 complaints about the 2011 Cadillac STS with NHTSA between Jan 2013 and Jan 2025. The most-cited component is electrical system (3).

Complaints
7
Filed with NHTSA
Crashes
1
Reported by owners
Fires
0
Reported by owners
Injuries
2
People reported injured
Deaths
0
Reported to NHTSA
01 —By component

Complaints by component

One complaint can cite several components
  1. Electrical system3
  2. Service brakes2
  3. Steering1
  4. Vehicle speed control1
  5. Exterior lighting1
  6. Seat belts1

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 29, 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
20131
20142
20152
20161
20170
20180
20190
20200
20210
20220
20230
20240
20251

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

Electrical system

3 reports
“WE OWN A 2011 CADILLAC STS. RECENTLY MY WIFE WAS LEAVING FOR WORK AND ALL OF A SUDDEN I FELT THE HOUSE SHAKE. MY WIFE WAS REVERSING OUT OF THE DRIVEWAY WHEN SHE APPLIED THE BRAKES. THE PEDAL WAS SO HARD SHE COULD NOT PRESS THE PEDAL DOWN. TO AVOID A CRASH SHE PUT THE CAR INTO DRIVE TO KEEP IT FROM GOING INTO THE STREET. ONCE SHE WAS ABLE TO KEEP THE VEHICLE OUT OF THE STREET SHE PUT THE CAR IN NEUTRAL, BUT THE BRAKES WERE STILL NOT RESPONDING. THATS WHEN OUR HOME BECAME OUR CAR STOPPER. I DROVE THE CAR AFTERWARDS AND THE BRAKE PEDAL WAS STILL HARD AND WOULD NOT HOLD THE CAR FROM MOVING WHEN IT WAS PUT INTO GEAR. I CONTACTED THE LOCAL DEALERSHIP WHO INFORMED ME THAT IT WOULD TAKE AT LEAST 3 TO 4 HOURS LABOR TO DIAGNOSE THE PROBLEM. THAT AT $149.99 PER HOUR. HE ALSO INFORMED ME THAT THEY HAD A VEHICLE IN EARLIER SAYING THE SAME THING AND THEY PRETTY MUCH REPLACED ALL OF THE BRAKING SYSTEM ON THE CAR AT THE COST OF OVER $3900.00. THAT IS CRAZY TO ME SO I WENT THROUGH THE CAR MYSELF. I REPLACED ALL BRAKES AND ROTORS, REPLACED THE BRAKE FLUID AND BLEED THE WHOLE BRAKE SYSTEM. ALL THAT FOR THE NEXT DAY THE SAME THING HAPPENED. I HAVE SINCE TRACED THE ELECTRICAL SIDE…”
Owner complaint to NHTSAFiled Oct 4, 2016Electrical system, Service brakesODI 10913653

Service brakes

2 reports
“WHEN I BACKED OUT OF MY CARPORT AND APPLIED MY BRAKES IT WOULDN'T STOP. I TOOK IT TO THE DEALERSHIP AND THEY COULDN'T MAKE THE CAR DO IT AGAIN. THE BRAKES WHEN I BACK UP STILL DOES NOT STOP MY CAR INTERMITTENTLY, UNTIL I STEP ON BRAKES 3 OR 4 TIMES. THIS IS FRIGHTENING. THE DEALERSHIP WOULDN'T EVEN TAKE A LOOK AT MY BRAKES. *TR”
Owner complaint to NHTSAFiled Aug 23, 2014Service brakesODI 10627767

Steering

1 report
“The steering wheel became uncontrollable while idle and can't turn the steering wheel without picking up speed. While stopped you can't turn the steering wheel, it's like trying to turn it while the engine is off.”
Owner complaint to NHTSAFiled Jan 4, 2025SteeringODI 11634057

Vehicle speed control

1 report
“2011 CADILLAC STS. CONSUMER WRITES IN REGARDS TO CRUISE CONTROL ACTIVATED ON ITS OWN. *SMD UPDATED 09/17/15*LJ UPDATED 09/21/15.*JB UPDATED 09/22/15*JB”
Owner complaint to NHTSAFiled Aug 3, 2015Vehicle speed controlODI 10744288

Exterior lighting

1 report
“DASH LIGHTS FAIL TO COME UP UPON START - SPORADIC IN MARCH 2013, CHRONIC IN NOVEMBER TO PRESENT BACK UP SENSORS MALFUNCTIONING - JANUARY 2014 TO PRESENT POWER WINDOWS GO UP AND DOWN - SPORADIC JAN 2014 CD/RADIO VOLUME EXCEPTIONALLY HIGH AND THEN RE-ADJUSTS ITSELF HEADLIGHTS TURN OFF WHEN THEY SHOULD BE ON - 2 OCCURRENCES - FEBRUARY 2014 2 EMISSION WARNING FROM ONSTAR DENIED BY DEALER - JAN - 03/2014 ALARM COMING THROUGH REAR-VIEW MIRROR ASSEMBLY - VERY, VERY LOUD AND PERSISTENT - FEBRUARY 2014 I REPORTED SEVERAL OCCURRENCES IN 2013. DEALERSHIP SAID THEY COULD NOT DUPLICATE REPORTED CHRONIC OCCURRENCES AGAIN IN NOVEMBER, DECEMBER AND JANUARY AND FEBRUARY - TOLD COULD NOT DIAGNOSE COMPLAINED TO CORPORATE WHO OFFERED TO HAVE CAR DIAGNOSED FOR 99.00; THEN CHARGED ASSIGNED WERE 99.00 PER SYMPTOM - GREAT WAY TO DETER A CUSTOMER TOLD BY CORPORATE THIS PAST WEEK THAT THEY DID NOT SAY THAT AND THAT THE CAR WAS UNFIXABLE. ALSO TOLD I WAS OUT OF WARRANTY AND ANY CHARGES WERE NOW ON ME. CAN'T FIX SOMETHING NO ONE CAN/WILL ACKNOWLEDGE EXISTS IF CONSUMER DOESN'T HAVE THE MONEY TO PURSUE THE MATTER. REFUSAL TO OFFER ANY OTHER SUPPORT FROM CORPORATE. I HAVE SENT IN 3 LETTERS TO CORPORATE. *TR”
Owner complaint to NHTSAFiled Mar 17, 2014Electrical system, Exterior lightingODI 10572730

Seat belts

1 report1 crash
“TL* THE CONTACT OWNS A 2011 CADILLAC CTS. WHILE TRAVELING APPROXIMATELY 48 MPH, THE DRIVER CRASHED INTO THE FRONT PASSENGER'S SIDE OF ANOTHER VEHICLE. THE FRONT PASSENGER SEAT BELT AND SHOULDER ATTACHMENT DEVICE SEPARATED WHICH CAUSED THE OCCUPANT TO MOVE FORWARD INTO THE DEPLOYED AIR BAG. THE PASSENGER SUSTAINED A BROKEN RIGHT ANKLE. THE VEHICLE WAS COMPLETELY DAMAGED AND TOWED TO A SAVAGE FACILITY. THE MANUFACTURER WAS NOT NOTIFIED OF THE PROBLEM. THE FAILURE MILEAGE WAS UNAVAILABLE. ...UPDATED 01/23/13 *BF....UPDATED 01/30/13 *BF AN INVESTIGATOR WITH THE CALIFORNIA HIGHWAY PATROL SUBMITTED THIS COMPLAINT FORM, NOT THE OWNER OF THE VEHICLE. UPDATED 2/4/2013 *JS UPDATED 2/7/2013 *JS”
Owner complaint to NHTSAFiled Jan 11, 2013Seat beltsCrash reportedODI 10492235
Data from NHTSA Complaints API (owner reports, unverified) · synced Oct 29, 2026

Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.