2012 GMC Terrain exhaust system NHTSA complaints: Engine And Engine Cooling:Exhaust System:Emission Control:Crankcase (Pcv)

NHTSA — Engine And Engine Cooling: Exhaust System: Emission Control: Crankcase (Pcv) Problems


fairly significant
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
11,000 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2012 GMC Terrain exhaust system problems

exhaust system problem

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2012 GMC Terrain Owner Comments

problem #1

Dec 162016

Terrain 4-cyl

  • 11,000 miles


The contact owns a 2012 GMC Terrain. While driving approximately 35 mph, there was an abnormal noise coming from the engine and the vehicle started to decelerate. The contact coasted into a parking lot and noticed an oil odor around the vehicle. The contact noticed that the vehicle was leaking oil all over the parking lot. The vehicle was towed to an independent mechanic where it was diagnosed that the PCV valve was frozen and was not circulating caused by excessive pressure leaking out oil. The intake manifold and cam cover needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 11,000. The consumer requested an update of the investigation concerning the vehicle's PCV valve.

- Woodstock, IL, USA

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