really awful
Crashes / Fires:
1 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
95,571 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2006 Cadillac STS drivetrain problems

drivetrain problem

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2006 Cadillac STS Owner Comments

problem #7

Feb 012017


  • 100,000 miles


The contact owns a 2006 Cadillac Sts. While driving various speeds, the vehicle hesitated and sputtered. The vehicle was taken to an independent mechanic who diagnosed that the catalytic converter was faulty and needed to be replaced. While the vehicle was being serviced, the mechanic discovered that the rear tow differential was faulty. The vehicle was not repaired. Woodworth Cadillac (339 N. main street, andover, MA) and the manufacturer were notified of the failures. The failure mileage was 100,000.

- Andover, MA, USA

problem #6

Feb 132016


  • 150,000 miles
Complete failure of suspension:rear:axle:spindle an rear differential 2006 Cadillac Sts plz ref: NHTSA campaign number: 07V589000 component(s): Power train recall subject : drive axle seal leak GM recall no. N070204 car was in motion on city street when grinding noise began and lost all gears. Are repairs coverable?

- Colorado Springs, CO, USA

problem #5

Jan 082016

STS 6-cyl

  • 120,000 miles
The contact owns a 2006 Cadillac Sts. The contact stated that while driving at approximately 55 mph, a strong burning odor emitted inside of the vehicle. In addition, drops of oil were visible on the ground. The vehicle was taken to the dealer where it was diagnosed that the front passenger's side axle seal fractured. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 120,000......updated 03/15/16 updated 03/17/16.

- Laurelville, OH, USA

problem #4

Apr 012015


  • 133,000 miles


This problem started over a year ago and I have had it to the dealer twice and they can no find the problem because there are no codes in the car. While driving the car it shuts down and you lose everthing lights, turn singles, hazards, the dash goes totaly out and the engine stops the best you can do it to pull it over to the side of the road and hope you don't get hit. I have had this happen it town driving and on the highway so it has nothing to do with speed. I have loaned my car to other people and it has happened to them so it is not the driver. I will happen and you pull over put the car in park and it starts right up and you can continue driving and it may happen a mile up the road or it may not happen for a week or a month later and still no codes.

- Abington, MA, USA

problem #3

Jan 092015


  • 111,000 miles
The contact owns a 2006 Cadillac Sts. The contact stated that while accelerating, the vehicle jerked forward and stopped after reaching 35 mph. In addition, the contact stated that the vehicle failed to start without warning. The vehicle was taken to an independent mechanic. The technician informed the contact that the vehicle was operating as designed. The manufacturer was notified of the failure. The failure mileage was 111,000.

- Harrisburg, PA, USA

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problem #2

Oct 062010


  • 55,000 miles
Stopped the vehicle, placed into park position, shut off car and engaged emergency brake. Removed seat belt, driver and passenger opened doors to exit. Engine at that time went into a very high RPM making a horrible loud whining noise and auto accelerated in reverse with car in park and emergency brake on. Tried to stop the vehicle but brake pedal went to floor. No control of the vehicle and rode the vehicle as it reversed on its own, onto street, through the intersection, colliding with a parked car and coming to rest with the rear of the car against a building. Speed unknown, no airbags deployed, small injuries.

- Pittsburgh, PA, USA

problem #1

Sep 012009


  • miles
To date three rear differential "repairs" have been performed on my 2006 Cadillac Sts and I am making an appointment for a fourth. Each time the parts were supposedly replaced. At this point am becoming afraid to drive my vehicle as the harsh grinding noise and rear thuds and thumps are quite disconcerting.

- San Bernardino, CA, USA

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