Service bulletins for the 2019 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.
1006 on file from NHTSA, as of 2026-10-19.
About P0300 on the 2019 GMC Terrain: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0300 are shown. Show all
| PIE0505 | 2019-03-25. Service bulletin. ENGINE AND ENGINE COOLING; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This engineering informational bulletin is requesting information from the field to determine a root cause for a condition of Engine Running Rough and/or Check EngineLight Illuminated, DTCs P0300, P0301, P0302, P0303, P0304 Set. |
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| 18NA020 | 2019-03-18. Service bulletin. ENGINE AND ENGINE COOLING. This technical bulletin provides a procedure to replace the charge air cooler due to moisture getting inside of it and causing a malfunction indicator lamp illuminated with DTC P0300 and/or P0299/P2227. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.