Service bulletins for the 2025 GMC Sierra
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.
759 on file from NHTSA, as of 2026-10-19.
About B1B2F on the 2025 GMC Sierra: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
By topic
Only bulletins with trouble code: B1B2F are shown. Show all
| PIT6455C | 2026-09-02. Service bulletin. UNKNOWN OR OTHER. This PI communications information that Engineering has released an OTA to correct the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting. |
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| PIT6455B | 2026-07-13. Service bulletin. UNKNOWN OR OTHER. This PI communications information that Engineering is investigating the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting. |
| PIT6455A | 2026-05-13. Service bulletin. UNKNOWN OR OTHER. This PI communications information that Engineering is investigating the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting. |
| PIT6455 | 2025-11-28. Service bulletin. UNKNOWN OR OTHER. This PI communications information that Engineering is investigating the Service Driver Assist message with current DTC B1B2F Telematics Control Module and U1624 Image Processing Control Module setting. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.