NHTSA Complaint #11450934 — 2017 GMC TERRAIN

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11450934
Vehicle	2017 GMC TERRAIN
Component	ENGINE
Date of Incident	February 4, 2022
Date Filed	February 8, 2022
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	MO

Consumer Description

Available for inspection upon request. The rear main seal is out, which is causing an oil leak. The intake manifold failed because the pcv system has a clog which has caused too much pressure to build up and caused the rear main seal to blow out. There were no dash lights. My car was completely out of oil from the issue and I had no indicators. This issue has been check and confirmed by a GMC mechanic.

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Recent Complaints for the 2017 GMC TERRAIN

#11719289 — FUEL/PROPULSION SYSTEM — February 20, 2026 — I had a message flash that said the power to the engine was reduce. Next message said check stabilink ( or something ...

#11719289 — UNKNOWN OR OTHER — February 20, 2026 — I had a message flash that said the power to the engine was reduce. Next message said check stabilink ( or something ...

#11714193 — UNKNOWN OR OTHER — January 29, 2026 — The PCV valve froze which caused pressure to build up in the rear main seal to fail. Causing oil to leak out of the m...

#11712537 — ELECTRICAL SYSTEM — January 21, 2026 — I am filing this complaint to report a catastrophic engine failure involving my 2017 GMC Terrain equipped with the 2....

#11712537 — POWER TRAIN — January 21, 2026 — I am filing this complaint to report a catastrophic engine failure involving my 2017 GMC Terrain equipped with the 2....