Electrical system
Chevrolet technical service bulletin PIT5648C for 2019 Chevrolet Silverado 1500 and 2019 GMC Sierra 1500.
- Bulletin number
- PIT5648C
- Component
- Electrical system
- Summary
- This Preliminary information communicates an issue with a "Trailer Disconnected Check Connection" message being displayed on the DIC without a trailer ever being connected. Engineering has released updated software calibrations for the Trailer Lighting Control Module.
Owners of these vehicles have filed 287 complaints in the electrical category.
Vehicles covered
- Chevrolet Silverado 1500 2019 2019
- GMC Sierra 1500 2019 2019
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