Diagnostic Aids

WARNING: This page is about a different car, the 2011 GMC Cab & Chassis Sierra, 2011 Chevrolet Suburban, and 2011 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC C0131 5A can set if the brake is applied while accelerating.
This DTC may set during off road driving in sand or hilly terrain.
Anything that may cause the vehicle to decelerate without the brake pedal being applied.
The electric trailer brake is applied without the brake pedal being applied.
Inform the customer that this DTC will set if the brake is applied for 60 seconds while at speeds greater than 21 km/h (13 mph), such as a two footed driving.