The automatic transmission handbrake will not be put down, which will make the car owner feel troubled, because it will affect the normal driving of the vehicle. When the handbrake cannot be put down, various reasons may occur, such as handbrake line failure, handbrake system damage, and so on. In order to solve this problem, it is first necessary to find out the specific reason why the handbrake cannot be put down, and then carry out targeted maintenance and treatment.
1. Check the handbrake line.
The handbrake line is an important part of the handbrake system, which is responsible for transmitting the operating force to the brakes and bringing the vehicle to a stable stop. If the handbrake line fails, it will cause the handbrake to not be put down. Therefore, when the handbrake cannot be released, you first need to check whether the handbrake line is normal. This can be checked by following these steps:
1.Check the handbrake circuit for breakage or wear, and if any abnormalities are found, you need to replace the damaged parts in time
2.Check whether the handbrake lever is moving smoothly, if it is stuck or unable to move, it may be that the lever is in a rusted state and needs to be cleaned and lubricated
3.Check if the end connection of the handbrake lever is loose or detached, if it is, you need to re-secure the connection.
2. Check the handbrake system.
The handbrake system is a part of the vehicle's braking system, which works with the brakes to ensure that the vehicle does not slide or move when parked. When the handbrake won't come down, it may be that the handbrake system is malfunctioning. Therefore, a comprehensive inspection of the handbrake system is required to troubleshoot.
1.Check whether there is oil leakage in the hydraulic oil circuit of the handbrake system, if oil leakage is found, the leakage needs to be repaired in time, and enough hydraulic oil needs to be added
2.Check the electrical parts of the handbrake system, such as handbrake switches, wiring harnesses, etc., to ensure the normal operation of the electrical components;
3.Check the control unit and sensors of the handbrake system, and if there is a fault**, you need to clear the fault code in time and troubleshoot.
3. Professional maintenance.
If none of the above methods can solve the problem that the handbrake cannot be put down, it is recommended to seek the help of a professional technician. Professional technicians can conduct a comprehensive inspection of the vehicle through diagnostic instruments, find out the specific reason why the handbrake cannot be released, and carry out targeted repairs.
When carrying out handbrake repairs, you need to pay attention to the following:
1.Operate in strict accordance with the vehicle maintenance manual to ensure the safety and correctness of the operation;
2.Use special tools for maintenance to ensure that there will be no secondary damage to the vehicle during the repair process;
3.After the repair, the vehicle needs to be tested and tuned to ensure that the handbrake system is working properly.
In short, when the handbrake cannot be put down, it is necessary to troubleshoot in time to ensure the normal use of the vehicle. When carrying out handbrake repairs, it is recommended to seek the help of a professional technician to avoid unnecessary losses. At the same time, we should also do a good job in the daily maintenance and inspection of the vehicle, find and solve the problem in time, and ensure the normal operation of the vehicle.