Two problems related to gas recirculation valve (egr valve) 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.
I bought this car 12/2014 in 01/15 I took it in for a noise coming from the engine. It turned out to be the timing chain. It was replaced. In 12/2015 I had engine problems the engine was replaced with help of the warranty I was out of pocket $850. 00. Now 08/16 it ran hot while on the free. I got off a the next exit and took it to firestone they couldn't tell what was wrong. I had it towed to a mechanic and he replaced the thermostat that didn't work. Had it towed back to the dealership who said something about a battery. That didn't even apply. They sent it back to the people they bought the engine from in 12/2015. They said the timing chain was broke again. They fixed it but it's still running hot. They warranty was voided b/c I drove it off the freeway and the temp reached higher than 280 degrees. They are going to replace the gaskets for $1000. 00 that I have to PA out of pocket and it still might have problems and need another engine. All in less than a year. I refuse to believe this. I believe the dealership either didn't install the engine correctly or the engine was already no god.
Cam shaft position actuator & cylinoid & balance shaft chain malfunctioning four times between 65,000 & 97,111. Two dealerships stated that they weren't aware that this was a recurring problem, even though all dealerships have access to the gm global site that lists all repairs and this new model had excessive powertrain repair issues due to the 2. 4 liter engine. Gm customer care utilized stall tactics by insisting that an "oil consumption" test be done that caused wasted miles and time and stalled correction of the problem by pushing the statute of limitations past the 4 year limit because they knew the car should have been repaired with a new engine or new car. Neither dealership had the integrity to assist me as the consumer with this issue, in fact I had to seek assistance from external agencies to even learn that there was a complaint process higher than the dealership and customer care when there are repeated repairs for the same the issue.