GMC Terrain owners have reported 2 problems related to service engine light on (under the engine and engine cooling category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Terrain based on all problems reported for the Terrain.
Purchased a brand new GMC Terrain. 12 days and 460 miles later the service engine soon light came on. Took it to dealership for a p050f. This is code for a leak in the booster. They did not repair anything, just checked for leak and reset engine light. As I read more, the problem affects the brakes ability to function properly increasing danger to driver. There is also defective stop/idle on the engine that no longer works. I was just driving down the road in town when it popped on. Gm and young's have refused to refund this defective vehicle.
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all problems of the 2018 GMC Terrain
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Wife was driving her vehicle, all service engine lights displayed, car DE-accelerated and was able to limp into a business on a 45 mph road. Took car to dealership, all service engine lights were on display, service technician acknowledged this. Cannot duplicate problem, no problem found in diagnostic testing.
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all problems of the 2014 GMC Terrain
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