Chevrolet Silverado 1500 2025–2026 — technical service bulletin
Bulletin PIT6455B · NHTSA communication 11034978 · issued Jul 13, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2025–2026
model years
4
vehicle entries
Official summary
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.
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.