2005 Cadillac CTS: check engine light

7 of the 277 complaints about the 2005 Cadillac CTS describe check engine light.

owner complaints: 7
of this car's complaints: 3%
typical mileage: 92,117
recalls: 0

Is there a fix? 105 service bulletins cover this area of the car. See below

Check engine light by model year

2019
2
2017
2
2015
2
2014
2
2013
2
2012
2
2011
1
2010
3
2009
29
2008
14
2007
7
2006
6
2005
7
2004
3
2003
6

What owners say

Filed Aug 9, 2019 · Engine · 170,000 miles · LA

I just purchased this car in february 2019 and it went down in late april or early may of this year. The service engine light would come on for a few days then it would go off for a few days. The engine would rattle when first cranked and then it got to the point where it would constantly keep trying to crank but never would and now it is completely out. I had it towed to mechanic and was told that they had to put 5 quarts of oil in it but I had the oil changed a month before the car died. They say the oil is going somewhere but where? I was also told the timing chain had failed. When this happens it can cause the pistons and everything else to fail with the engine. It will cost me over $2000 to get repaired. This is ridiculous! Something needs to be done about this. Cadilliac makes everything so expensive so I would not recommend getting one unless you can absolutely afford it and not be in debt behind it. I was in love with this car but this is horrible. This is my second time trying to get it repaired and now I'm done.

Filed Nov 23, 2015 · Engine · 103,000 miles · CA

Tl* the contact owns a 2005 cadillac cts. While driving approximately 55 MPH, the vehicle shook violently and the check engine warning light illuminated. The failure recurred numerous times. The vehicle was taken to an independent mechanic where it was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 103,000.

Filed Mar 16, 2014 · Electrical · 40,210 miles · NJ

The engine light flashes on for 2 seconds, then the car decelerates for seconds, and then all is okay. This may happen several times in a row within 5 to 10 minutes. We first had the battery and alternator replaced, as suggested. Then this happened 4 more times, whereas we took it to a dealer who could not find anything wrong. It's hard to feel safe while driving this vehicle as it's happened at major intersections and also in heavy traffic.

Filed Oct 29, 2013 · Engine · 92,000 miles · TX

Engine quit without any warning (noise, engine warning light) going 55mph down highway. Engine is ruined. I bought this car new and kept it for almost 8 years. I had all routine and recommended maintenance done by dealer. I sold this to my friend who this happened to. I have determined this was probably caused by the gm recommended 10,000 miles oil change. Engine failures apparently have been happening for quite some time according to the internet and gm or my dealership never once told me to have the oil changed sooner or warned me about this. I feel this is a real safety hazard. If I would have pulled out on the freeway where I normally do to blend into 70 MPH traffic and the engine would have failed, I would have had no place to pull over and coast to a stop as there isn't a shoulder for several yards. I could have very well been hit from the rear and a chain reaction accident with potential loss of life could have occurred.

Filed Oct 22, 2013 · Driver assistance, Engine · 92,117 miles · NC

In november 2011 I could not take the key from the ignition of my car.then in 2012 the same problem occurred on about the same month, costing me a little under $900.00 both times.the problem mention was stated internal failure of engine control module.the module computer chip, went out both times. Now I am having problems with the car shaking after refueling and the check engine light is on. I understand that there was a recall of this model car in 2010. I brought this n 2011 from ford of rock hill in south carolina. There were no mention of any recalls.

Filed May 16, 2012 · Engine · TX

Tl* the contact owns a 2005 cadillac cts. The contact stated that the vehicle consumed oil at an excessive rate of twenty quarts per month. The contact also stated that the check engine light constantly illuminated on the instrument panel. The contact took the vehicle to the dealer and was informed that the vehicle was consuming oil at a normal rate. There were no oil leaks coming from the vehicle. The dealer suggested performing an oil consumption test, but the test was not performed. The VIN was not available. The failure mileage was unknown and the current mileage was 50,000.

Filed Jul 12, 2006 · Airbags, Engine · 17,200 miles · NY

Dt*: the contact stated there are several things wrong with the vehicle. The check coolant light and the check engine light illuminated on the dashboard. The dealership determined the radiator was damage and attempted to repair the radiator four times. The first three repairs performed by the dealer in an attempt to repair the radiator were unavailable. The fourth time, the dealership determined the problem was with the water pump and the water pump was replaced. The fuel pump was also found to be defective and was replaced. The check engine light illuminated on the dashboard prior to the fuel pump problems. The drive shaft was defective causing the vehicle to become inoperative. The crs light illuminated in the vehicle. There was an unknown part replaced to repair the crs light. The driver's power window worked intermittently making a grinding noise and the dealer repaired the window. The wiring was in backwards on the passenger seat causing only half of the seat to move. The dealership corrected the wiring to repair the seat.