What s going on with parking brake failure, what does parking brake system failure mean?

There are many reasons why this braking system fails, such as:

1) Insufficient brake oil pressure. (lack of oil in the brake master cylinder, rupture of the brake line, leakage of oil pipe joints, and blockage of the oil circuit).

2) There is air in the braking system.

3) The free stroke of the brake pedal or the brake clearance is too large, and the brake shoe friction pad is not in good contact, and the wear is serious or there is oil stain.

4) The brake master cylinder, wheel cylinder piston and cylinder tube are worn or strained, and the leather bowl is aged and damaged.

A parking brake system failure is a handbrake failure.

Common faults mainly include: poor parking brake efficiency, parking brake failure and parking brake lever can not be positioned. The failure of the parking brake system will cause the car to be unable to park stably on the ramp, and the parking will produce slippery phenomenon, so you should go to the 4S shop in time for inspection and maintenance.

The parking system refers to a function that automatically brakes.

After activating this function, such as when parking and waiting for traffic lights, it is equivalent to not having to pull the handbrake, and you can avoid using the handbrake or electronic handbrake.

And to simplify the operation, automatic transmission.

The model also does not need to switch back and forth from D to N and D to P frequently.

Electronic parking fault solution:

1. Reset the electronic parking, turn on the car key, then step on the foot brake, then press the electronic parking brake down for 5 seconds, and then pull the electronic parking brake up for 5 seconds, so that the electronic parking brake is initially reset.

2. Parking brake.

It usually refers to the manual brake installed by a motor vehicle, referred to as the handbrake. The common handbrake is generally placed in the driver's right hand in a down-hanging position for easy use.

3. The function of the parking brake is to stabilize the vehicle after the vehicle is stopped, so as to avoid accidents caused by slipping when the vehicle is parked on the slope road.

4. Some automatic transmission models on the market are designed with the same function as the handbrake on the outside of the driver's left foot, and some advanced models are also equipped with electronic parking brake systems.

You seem to have this situation because your electronic parking system is malfunctioning, and you need to go to the repair shop to read the fault code with a decoder, and then repair it.

1) The parking brake is out of order. The main reason for the failure is that the gap between the friction plate and the paste drum is too large, and there are oil stubs or friction plates on the friction plate and brake drum that are seriously worn, the rivets are exposed, and the surface hardening causes slippage; It may also be that the parking brake pin shaft is severely worn, the clearance is too large, and the parking brake lever adjustment is too long. Therefore, before driving use, it should be checked and adjusted so that it can achieve parking brake manipulation and stop at 28% slope or cannot start in second gear.

2) The parking brake lever cannot be fixed. When the parking brake is thrown and braked, the parking brake lever is pulled to the braking position and then released, and it cannot be fixed on the braking position. When inspecting, first press and release the lever head, hold and relax the lever handle, carry out the up and down movement test, check whether the lever is bent, stuck or the spring is broken, if no problem is found, check whether the fan teeth and pins are seriously worn and cause tooth slippage.

It is the failure of the electronic parking system, the problem of the electronic handbrake, or the wear of the brake pads, or the battery power supply and other problems.

When the vehicle is temporarily parked and needs to be restarted after a short period of time, the parking is completed by the ESP-controlled brakes, and the computer will measure the levelness of the body and the torque of the wheels through a series of sensors, make a judgment on the trend of the vehicle slipping, and implement an appropriate braking force on the wheels to make the vehicle stationary.

This braking force is just enough to stop the car from moving, but not too much, so that when you press the accelerator again, there will be no too serious forward movement.

Advantage. The traditional handbrake needs to rely on the driver to start comfortably by manually releasing the handbrake or skillfully throttle and clutch cooperation when starting on a slope. The Auto Hold function gives accurate parking force by the controller via the slope sensor, and the parking control unit passes the clutch distance sensor when starting.

The information provided by the clutch pinching speed sensor, accelerator pedal sensor, etc., is calculated to automatically release the parking brake when the driving force is greater than the driving resistance, so that the car can start smoothly. Even if you are congested and parked in the city, as long as you enable the auto hold function, the corresponding automatic parking function will be activated.

The intelligent Auto Hold function allows the vehicle to automatically activate the four-wheel brake when waiting for a red light or stopping uphill or downhill, so you don't need to keep your foot on the brakes or use the handbrake even in D or N gear, and the car is always stationary. When it is time to release the standstill state, you can also release the brake with a simple tap of the accelerator.

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1. The gap between the friction plate and the brake drum is too large, and there is oil stain on the friction plate and the brake drum or the friction plate is seriously worn, the rivet is exposed, and the surface hardening causes slippage; 2. It may also be that the parking brake pin shaft is seriously worn, the clearance is too large, and the parking brake tie rod adjustment is too long.

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Hello, that is, we often call the electronic parking brake failure.

Parking brake is commonly known as "handbrake", after the vehicle is parked, let the car stay in place and do not move, relying on the handbrake, parking brake failure is the function of no brake after the car stops, parking brake failure is recommended to go to the maintenance plant as soon as possible to detect, there are many components in the parking system, involving safety issues, it is recommended not to underestimate.

Parking brake system failure cause:

When the proportional valve function of the rear brake force control function of the ABS anti-lock braking system fails, the braking system warning light will be displayed together with the ABS warning light, and the braking system warning light will be lit when driving, indicating that the vehicle's braking system may be faulty.

There may also be serious wear of the brake pads, the brake pads are divided into two kinds with induction line and without induction wire, with the induction line will be worn to the limit position of the brake pad, the induction line will automatically turn on the circuit, then the fault light will be lit, and the brake pad without the induction line will not automatically alarm.

The failure of the parking BAI system is caused by a sensor problem

It is impossible to realize the automatic zhàng brake dao function. The parking brake function is to give the car a resistance when stopping, so that the car does not slip. The parking brake, i.e. the handbrake or parking gear in an automatic transmission, locks the propeller shaft or the rear wheels.

The parking brake is much, much less powerful than the service brake, and it is enough to stop on the slope without slipping. The electronic parking function is developed through the ESP module, and during parking, the ECU uses sensors installed on the vehicle to determine the levelness of the vehicle body and the torque required for wheel braking, so as to decide whether to brake to prevent rolling.

1. Reason: 1. Parking brake.

The joystick cannot be fixed.

2. The parking brake fails.

3. The parking brake makes abnormal noise, or it is aging.

4. The gap between the friction plate and the brake drum of the automatic parking system is too large, and the friction plate and brake drum are oily or seriously worn, the rivets are exposed, and the surface hardening causes slippage and failure.

5. Parking brake pin.

Severe wear, too much clearance, and too long adjustment of the parking brake lever.

2. Solution:

1. Swing the parking brake by hand to see if the fixing screw is loose, the lever is deformed or the fixed pin is loose, and the joystick spring is damaged, etc., which should be repaired and adjusted in time.

2. If you hear a kind of "swish, swish" friction sound, after driving a distance, touch the surface of the brake drum with your hand and feel the heat, indicating that the gap with the brake drum is too small, and should be readjusted, and the general gap should be.

3. Pull the parking brake lever to the braking position and let go, and when you can't fix it in the braking position, you should first release the lever and leak the head according to the reputation, hold and relax the lever handle, and carry out the upper and lower movement tests to check whether the lever is bent, stuck or the spring is broken, if you don't find the problem, you should immediately drive to the car repair shop for maintenance.

Precautions for the use of parking brake:

Do not tighten the parking brake when starting the car, otherwise the rear brake effect will be reduced due to overheating, the brake life will be shortened or the brake will be permanently damaged. If the parking brake does not brake the car stably or does not release completely, you should immediately ask the dealer or service station for inspection. The parking brake should usually be fully applied before exiting the car, otherwise the car will move and cause injury or damage.

Make sure to keep the shift lever of the manual transmission car in neutral when parking: make the automatic transmission.

The car's gear lever is in P (Park.

position or N (neutral) position, and the vast majority of automatic transmission cars only have P gear.

before you can pull out the ignition key of the car.

The common faults of the parking brake include ineffective braking, brake failure, deviation, and dragging. If the parking brake fails, it should be overhauled as soon as possible to avoid the car from moving, causing injury or damage.

The failure of the parking brake system will cause the car to be unable to park stably on the ramp, and the parking will produce slippery phenomena, which should be repaired in time to the 4S shop. When braking on a stationing vehicle, press down on the brake pedal and pull out the parking brake lever all the way up. To release the parking brake, press down on the brake pedal, pull the parking brake lever up slightly, press the button on the end of the handle with your thumb, and lower the parking brake lever to its original position.

Usage of the parking brake

Press and hold the control button on the dashboard of your car until the yellow P indicator on the button lights up, and when the red arrow indicator inside the instrument is on, the electronic parking brake is on. Turn on the ignition, press and hold the control button on the dashboard, and press and hold the brake pedal until both the yellow P indicator and the red arrow indicator in the instrument cluster turn off, indicating that electronic parking is off.

Generally speaking, the electronic parking brake control button is located at the bottom left of the dashboard, and the button has a "P" logo on the button. When the ignition is turned on, the red "" indicator in the instrument cluster and the yellow "P" indicator on the electronic parking brake control button will illuminate if the electronic parking brake is on.

The above content refers to Encyclopedia - Parking Brake.