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Service bulletins for the 2018 GMC Terrain

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

1345 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
PIP5540A2018-02-21. Service bulletin. ENGINE. This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.
PIP5472C2018-01-16. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. This Preliminary Information communication provides information to the technician related to vehicles that have a Malfunction Indicator Lamp on. A technician may find Diagnostic Trouble Code P050D set as current or history. The technician is advised that if the engine misfires during very specific cold start conditions, to replace only the exhaust side SHLA's (Stationary Hydraulic Lash Adjuster) and to retest for the concern.
PIP5417B2018-01-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. This Preliminary Information communication provides information to the technician related to utilizing crankcase pressure testing to aid in engine oil leak diagnostics. The technician is directed to perform the testing and to check related components based on the results.
17-NA-2462017-12-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. This technical bulletin provides a procedure to replace an affected belt molding that may not fit correctly due to being produced the wrong size with the newly designed part.
PIP5428C2017-12-14. Service bulletin. ENGINE. This Preliminary Information communication advises the technician that the ECM part numbers 55501366, 55502052 and 55485591 will be placed on a parts restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
PIP5517A2017-11-14. Service bulletin. ENGINE. This Preliminary information communicates the following to the dealer. If an engine oil leak has been isolated to the front crankshaft seal, check for misfires low engine compression and/or cylinder leakage readings. These issues could cause excessive positive crankcase pressure leading to engine oil leaks.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.