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RecallGazette

Vehicle problems, recalls & safety intelligence

Chevrolet Silverado 1500 2014–2018technical service bulletin

Bulletin PIT5529A · NHTSA communication 10126992 · issued Dec 21, 2017

Technical service bulletin
communication type
Electrical System
component
2014–2018
model years
38
vehicle entries

Official summary

This Preliminary Information communication provides information to the technician about vehicles that have Trailer connection not recognized or “Check Trailer wiring” or “Service Trailer Brake” message. Technician may find Diagnostic Trouble Codes C1112, C1113, C1114, C111B, U1556, and/or U1505. Technician will need to inspect the battery and Trailer Brake Power Module connector for corroded terminals and replace as necessary.

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.