2012 GMC Terrain: misfire or rough idle

Filed Nov 18, 2020 · Driver assistance, Engine · 95,860 miles · OH

Code-p0014-camshaft positionb timing over-advanced or system.code-p0300 random/muitiple cylinder misfire.computerized engine analysis.recalls#50490-50491

Filed Oct 23, 2020 · Engine, Transmission · 99,000 miles · VA

Have a serious oil consumption problem have to have oil changed every 500 miles, it starts to shake when start up it turns off keep getting camshaft codes also got misfire code

Filed Oct 12, 2020 · Engine · VA

Car is misfiring and shutting off while driving. I was driving and car stooped in the middle of the street. I turned on my car and pulled off and car cut off.

Filed Jul 3, 2019 · Acceleration, Driver assistance · 41,000 miles · FL

Several times in 3 years, the dealership can not duplicate the problem loss of power starts running slow, wont go over 20 MPH, check stability light comes on, check engine light starts blinking, acts like misfire or no fuel in vehicle, starts anywhere at any time, very unsafe and scary. At least taken to a certified dealership 7 or 8 times and every time they do something differant , yet the problem persists! The vehicle can be stationary at red light and big or while driving going 45 or 65 and drop to 20 MPH and not want to go, I push the gas paddle to floor and it does nothing. This has been intermediate and a problem since month 3 of buying my vehicle. This is not safe and the dealership has basically givin up on me and my vehicle.

Filed Mar 14, 2014 · Acceleration, Body · 44,039 miles · FL

On 8/2/12 I purchased my gmc terrain brand new in ashland city, tn. I moved to west palm beach in october 2012. The current miles on the vehicle are 44,039. I got an oil change, filter and multi-point inspection on 10/24/13 by the local gmc dealer. On 10/23/13 I took my vehicle in to have a recall repaired at schumacher buick/gmc. The recall # is 12312. A month later the vehicle would lunge sharply forward while driving and a heavy shaking vibration (both while driving and at a stop) below my feet in the vehicle (floor board). I took the vehicle to schumacher buick/gmc 3031 okeechobee blvd, on 11/11/13 and it remained until 11/15/14 and the problem was not identified. I returned the vehicle for the same problem on 12/21/13 (same dealer) and it was picked up on 12/31/13. The first service advisor was rob deal he told me that the vehicle shifts its drivability to the driver and nothing was wrong. I took my vehicle back a second time for the same problem this time (it was getting worst) my rep was "[xxx]". He said it was the "eco" button in the car, if pushed makes the car run rough." on march 7, 2014, I contacted gmc corporate office and spoke to sherry and requested a full analysis of my car. This time I went to another gmc dealer locally (lake park schumacher) and my service tech was [xxx]. Per [xxx] it is a transmission issue -left on my voicemail and saved" specifically he said it was the "control pressure valve causing it to lunge forward and it was improper." he said it was "uncommon to see this issue." the reason I took the vehicle in is that I almost rear ended two people while driving due to the vehicles lunges and have my body jolted into the glass the force was so strong with the lunge. I fear for my safety and that of my 12 year old daughter in this car. I was contacted on 3/13/14 that the vehicle was ready for pick-up and it had been fixed. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Dec 18, 2013 · Driver assistance · 20,000 miles · IL

I own a 2012 terrain sle2 with approximately 20,000 miles. On friday, december 13, 2013, I joined the innumerable owners of gm products (found on the various owner forums on the internet) that have experienced the service stabilitrak light coming on with rough idling. Other owners have expressed the loss of power when this event occurs. Luckily, I was backing out of my garage and not traveling on the expressway so I cannot advise whether there was loss of power since I was going so slow. The light went off when I turned the vehicle off in order to come inside and call the dealer (woody buick gmc in naperville il). The dealer was able to find code po300 (random cylinder misfire) but they could find nothing wrong. I was told the vehicle fixed itself (which I find highly doubtful and very disturbing). I am a one vehicle family and now in a complete panic whenever I drive this vehicle. I fear for my life, my passengers? And others because loss of power can happen at any time and I am concerned about being rear ended since the driver behind me would have no clue, as I don?t, that my vehicle will lose power. Since this is a huge safety concern, I am shocked that gm has not addressed this failure of its products.

Filed Oct 23, 2013 · Brakes, Driver assistance · 17,956 miles · PA

The vehicle has been in the shop for 10 to 12 times due to failure with the engine misfiring as well as traction control lights and stability trac as well as transmission not shifting right and loss of power while driving on major highways and brought into the dealership where they tell me they can find or make the problem reappear. But have shown the dealership service department video and have had 3 general motor techs that they hired from hp and been told the vehicle is safe and that there will be no more problems but have been in the vehicle while the problems have happened and have it on video to the point where I almost lost my life yesterday night. The vehicle is a death trap and many customers including myself on gmc terrain forum as well as online have had the same problem and have been told the same thing that it is nothing to worry about but it is. Please help have been told by gm to keep my mouth shut they would offer me 5,000 dollars for my troubles and that my kids are worth that much from a legal advisor at general motors legal. Have ask to be taking out of the vehicle for something safe and still I'm being told no......please help