Huge win for car owners! All TSBs to be made public. The Center for Auto Safety just made the NHTSA (US Government) make public the full text of all TSBs from now on. They are the same organization that has petitioned the NHTSA & filed lawsuits to protect car owners over exploding gas tanks & other major safety issues. Whenever you drive in your car, you are safer thanks in part to a lot of work over the years by this small but very effective consumer advocacy group.

Please take a moment & say thank you by donating $5 or whatever you can to the Center for Auto Safety.


really awful
Crashes / Fires:
3 / 0
Injuries / Deaths:
1 / 0
Average Mileage:
62,893 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.

2004 Cadillac CTS engine problems

engine problem

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2004 Cadillac CTS Owner Comments

problem #10

Sep 042009

CTS 6-cyl

  • miles


2004 Cadillac Cts. Consumer writes in regards to throttle body assembly issues. The consumer stated the throttle was either replaced or serviced six times. Because the vehicle would not go over 45- 50 mph.

- Urbana, IL, USA

problem #9

Oct 062015


  • 128,000 miles
I have a 2004 Cadillac Cts I have replaced the ECM, throttle body 3 times, gas pedal, wiring harness for the throttle body, but the throttle body position will be learned for about a month then my vehicle would go into limp mode almost causing several car accidents. I have tried just about everything I have had the engine replaced as well. I don't want to let this vehicle go but this issue will not stop. It is a huge safety issue and I need it fixed before me or one of the other GM owners lose their lives.

- Robins Afb, GA, USA

problem #8

Nov 252013

CTS 6-cyl

  • 175,000 miles
Had my cruise control set at 70 mph for highway driving when I heard a psshhh sound and cruise control broke violently and smelled burnt rubber with smoke coming from back end of car. Pulled over immediately and car smoke from back end and smell only increased. Thought for sure I had a tire blowout. Walked around car and nothing wrong with tires. Had car towed to an auto repair place and am told that the rear differential went out. I have since investigated and found many, many forums about this issue. There are no recalls for this particular model but a certain recall for 2005 models. This situation could have been deadly and I feel both fortunate and upset with GM that such a problem has been so commonly noted but with no "real" resolve. The auto repair place has called around and this is a special part that is not available in my state and a new one costs an estimated $1,200. With so many issues with models 2004-2006 how come there is no recall for 2004 and only a lesser degree of a recall for 2005?

- Corpus Christi, TN, USA

problem #7

Oct 182010

CTS 6-cyl

  • 76,000 miles


My Cadillac '04 Cts has a brake issue. When turning sharp at low speeds the brakes "disengage" and I lose complete control of the car. It is intermittent and I can't duplicate it at will. It just happens. I have filed a case with GM customer service and am taking to the dealer tomorrow.

- Los Angeles, CA, USA

problem #6

Jul 152010

CTS 6-cyl

  • 82,000 miles
The contact owns a 2004 Cadillac Cts. The contact was driving approximately 40 mph, approaching a stop sign when the vehicle jerked and surged forward unexpectedly. The failure occurred whenever the vehicle was at stop sign or traffic light. The vehicle was taken to an authorized dealer and the technician was unable to duplicate the failure. The vehicle had not been repaired when the complaint was filed. The contact had significant concerns regarding the potential safety hazard. The failure mileage was 82,000. Updated 9/22/10 the consumer stated he experienced a hesitation and surge when accelerating from a stop. The consumer stated he was able to correct the problem by cleaning the air intake that had an oily dirty film on it. Updated 09/24/10 updated 04-14-14

- South Bend, IN, USA

problem #5

Feb 152007

CTS 6-cyl

  • 50,000 miles
On or about February of 2007, September 2008, June 2008 and March 2010, my 2004 Cadillac Cts's RPM fluctuated from 1 to 3 at a high speed while driving and while parked.

- Ventura, CA, USA

problem #4

Sep 292006

CTS 6-cyl

  • Automatic transmission
  • 37,000 miles


: the contact stated at various speeds without warning, the vehicle lost power and would not accelerate above 20 mph. Also, without warning, the vehicle stalled on several occasions, and would not restart. The vehicle was towed to the dealership, who replaced the throttle twice and the throttle body assembly harness, but the problem persisted. Updated 10/25/2006 -

- Vacaville, CA, USA

problem #3

Mar 112005

CTS 6-cyl

  • Automatic transmission
  • 22,700 miles
Vehicle has twice accelerated forward upon braking when coming to a stop. First time was in a parking lot. Vehicle was pulling into parking space, slowed to a crawl with the brakes applied, then suddenly lunged forward, hitting the car parked directly in front of vehicle. No damage occurred, but experience very frightening. Second time was returning from doctor appointment. A passenger in the vehicle at the time and experienced the defect. While coming to a stop behind a group of cars at the stop light, brakes applied to slow the car to a crawl, then suddenly the car surges forward. Upon slamming brake fully to the floor, the vehicle stopped, missing hitting the car ahead and stopped by only inches. Vehicle was taken to dealership, which kept the car over the weekend, supplying a loaner car. Called dealership Monday afternoon. Told there was nothing wrong with the vehicle. It was driven a total of 80 miles over the weekend and the problem was not recreated. The trouble is, it was almost 450 miles between the first problem occurrence and the second one. They were almost one week apart. Now I am told by the dealership that since the computer found no defects over the weekend, my car is ready for me to drive. I now have a defective car with a serious safety issue, which I am afraid to drive. I told them I wanted a piece of paper stating the car was free of defects, so when this occurs again, I will be notifying my insurance company and we will take action against this dealership if any damage results from another occurrence of this type. I am also going to request the dealership to allow the computer to stay hooked up to the car for at least a week when I go tomorrow to pick up the car.

- Smithfield, NC, USA

problem #2

Oct 142004

CTS 6-cyl

  • Automatic transmission
  • 58,000 miles
While pulling inside of a parking lot the consumer applied the brakes, placed the vehicle in reverse and the vehicle suddenly accelerated backwards. The driver was able to maintain control of the vehicle and applied the brakes, the pedal went to the floor. The driver placed the vehicle in drive and the vehicle suddenly accelerated uncontrollably and ran into a glass window. No injuries. Both frontal air bags did not deploy. The vehicle was towed to the dealer. Please fill in additional information. Sierra vista police department has a report of the accident.

- Sierra Vista, AZ, USA

problem #1

Jul 052004


  • Automatic transmission
  • 232 miles
The consumer was parking the vehicle when the gas pedal became stuck causing the consumer to crash into a building head on. Upon impact the air bags did not deploy. Consumer sustained injuries and was hospitalized.

- Deer Park, NY, USA

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