This PI addresses an issue where the
Chevrolet technical service bulletin PIT6474A for 2022-2024 Chevrolet Silverado 1500 and 2022-2024 GMC Sierra 1500.
- Bulletin number
- PIT6474A
- Component
- Unknown or other
- 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 started, caused by a drop in battery voltage to the Brake System Control module. Dealers are to clean and tighten battery cable connections, test the vehicle battery and charging system, and update the Brake System control module with updated software.
Vehicles covered
- Chevrolet Silverado 1500 2022-2024 202220232024
- GMC Sierra 1500 2022-2024 202220232024
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