
This situation indicates a malfunction in the parking brake system. It is recommended to contact professional technicians at a 4S dealership to use diagnostic equipment for identifying specific fault codes, followed by targeted repairs. Below are specific causes for different parking brake failures: Unusual Noises: If knocking sounds are heard from the parking brake while driving, stop immediately to inspect for loose fastening screws, control levers, or pivot pins, and perform timely adjustments or repairs. Parking Brake Lever Fails to Lock: When applying the parking brake, if the lever cannot maintain the braking position, first release the lever head to check for bends, jams, or broken springs. Parking Brake Failure: Causes for this issue include excessive clearance between friction linings and brake drums, oil contamination or severe wear on friction linings/drums, exposed rivets, or surface hardening leading to malfunction.


