Two problems related to engine noise have been reported for the 2010 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2010 GMC Terrain based on all problems reported for the 2010 Terrain.
Vehicle makes noise on cold starts, rattle and engine noise. Found oil leaking on driveway after dealership oil change. Indication was poor fit of filter. Second such vehicle to have this issue. Other 2009 Saturn outlook (vehicle rollover injuries sustained and complained NHTSA) . The cold crank engine noise was present prior to oil change on 4cyl,and steering also makes noise on cold start. Vehicle is stationary and has been purchased second hand from dealership 1 year ago.
Noticed noise coming from engine, took too dealer and was advised nothing wrong. 2010. Took too another dealer, told nothing wrong and vehicle would soon be out of warranty at (36,000 miles) contacted gm, was advised warranty until (100,000 miles). Returned to dealer, cam actuators replaced was told "fixed". Returned to dealer within a month or so, same problem. Cam actuators replaced, was told "fixed" contacted gm regarding lemon law, refused to replace advised them vehicle still making noise. Returned to dealer again, dealer claimed vehicle was fine. Gm offered a $2,000. 00 owner loyalty but refused any further repair or replacement of my vehicle. Recently received a letter from GMC (dated September 2014) advising of the problems that I have had since first month I owned vehicle, and I purchased brand new! October 23, 2014 sent letter to GMC (certified mail/return receipt requested) requesting they either respond and repair or replace vehicle or I would file complaints and do my best to get a class action suit started. As of today 11/21/2014, I have not received any response from GMC. I do not have the finances to just go buy vehicles, I have disabled people in the household and this was to be a long term "reliable" vehicle, instead it has been a joke! vehicle has stalled in traffic numerous times, decided to drop speed and have no power to barely move. This is one of the avenues I am taking, I will also be forwarding copies of all of the repairs and letters to senators, congressman etc.