Chevrolet Silverado 1500 2022–2024 — technical service bulletin
Bulletin PIT6474 · NHTSA communication 11027881 · issued Jan 22, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2022–2024
model years
6
vehicle entries
Official summary
This PI addresses an issue where the customer may experience a loss of brake assist, accompanied by numerous MILs and warnings, after the engine has restarted following a stop/start event, caused by a drop in battery voltage tot he Brake System Control module. Dealers are to test the vehicle battery and update the Brake System control module with updated software.
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.