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Home >> Hummer >> 2010 >> H3T Alpha >> Repair and Diagnosis >> External Pages >> Different car >> Section 1340 (Trailer Brake Control System) >> Diagnostic Information and Procedures >> Symptoms - Trailer Brake Controls >> Notes

Symptoms - Trailer Brake Controls: Notes

WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: The following steps must be completed before using the symptom tables.
  1. Perform the Brake System Vehicle Road Test before using the Trailer Brake Controls symptom tables in order to duplicate the customer's concern.
  2. Review the system operation in order to familiarize yourself with the system functions. Refer to the following:
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