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January 27, 2026 Service bulletin

This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication...

Chevrolet technical service bulletin PIT5985K for 2022-2026 Chevrolet Silverado 1500, 2021-2026 Chevrolet Tahoe and 2026 Chevrolet Equinox and others.

Bulletin number
PIT5985K
Component
Unknown or other
Summary
This PI provides diagnostics tips to dealership techs when trying to diagnose a CAN Bus communication issue after an event like a lightning strike, battery jump started backwards, failure over the air update, etc.

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