Service bulletins for the 2026 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.
170 on file from NHTSA, as of 2026-10-19.
About P16F4 on the 2026 GMC Terrain: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P16F4 are shown. Show all
| PIP6099A | 2026-02-01. Service bulletin. UNKNOWN OR OTHER. This P/I is advising that the TCM should not be replaced for DTC P16F4 and to follow the repair instructions. |
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| PIP6099 | 2026-01-30. Service bulletin. UNKNOWN OR OTHER. This P/I is advising that the TCM should not be replaced for DTC P16F4 and to request FSE assistance for a TCM data pull. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.