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Home >> GMC >> 2021 >> Terrain SLT, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Body Interior >> Vehicle Access System >> Diagnostic Information and Procedures >> DTC B396A - Liftgate Motor Power Open/Close Malfunction >> Diagnostic Aids

Diagnostic Aids

Whenever the liftgate control module loses power or is disconnected, the ignition must be cycled OFF then ON in order to reactivate the liftgate control module.

In some circumstances high or low control circuit faults may cause the liftgate control module to react as if the liftgate has encountered an object in its travel and reverse direction.