Chevrolet Trax: Hydraulic Brakes

 DTC P2122, P2123, P2127, P2128, OR P2138

Diagnostic Instructions Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Review Strategy Based Diagnosis for an overview of the diagnostic approach. Diagnostic Procedure Instructions provides an overview of each diagnostic category. DTC Descriptors D

 Descent Control System (DCS)

If equipped, the DCS allows the vehicle to travel at a low speed without applying the brake. The vehicle will automatically decelerate to a low speed and remain there when DCS is turned on. Use only when descending steep grades while driving off-road. Do not use when driving on normal road surfaces