Service bulletins for the 2018 GMC Savana
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.
981 on file from NHTSA, as of 2026-10-19.
About B125C on the 2018 GMC Savana: what the code means, and the bulletins and recalls about the same components.
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By component
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Only bulletins with trouble code: B125C are shown. Show all
| 17NA214 | 2018-05-21. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; STRUCTURE:FRAME AND MEMBERS. This technical bulletin provides repair information to correct customer concerns of OnStar, XM, GPS or antenna malfunction ? may set DTC B2462, B2470 or B125C - and/or water leak on headliner at sun visor or overhead console areas, possible battery drain concern. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.