What s going on with the braking system warning light appearing on the dashboard of a car

When the car's braking system is normal, the braking system warning light will only light up when the handbrake is pulled, and the light will turn off when the handbrake is released. This serves to remind the driver that the handbrake has been fully released before driving. If the handbrake is fully released, but the brake system warning light is still on, it usually means that there is not enough brake fluid in the brake fluid bottle.

Insufficient brake fluid and low fluid levels can increase braking distances and require more pedal travel for greater braking results. There is a certain danger in this, so it is best to stop the car in time for inspection.

In such a situation, the driver should do the following:

1.Carefully pull over to the side of the road, check the brake fluid, and add the manufacturer's recommended brake fluid to the MAX mark.

2.Check whether the braking operation is normal, judge whether the driving is safe, if the braking operation is normal, driving safely, drive the car carefully, and go to the nearest after-sales service center for maintenance.

3.If there is a leak, or the warning light is on and does not go out, or the brakes do not work properly, the vehicle will be towed to the nearest after-sales service center for maintenance.

Tips: When the ignition switch turns to the open position when the handbrake is pulled up, if the warning light of the braking system does not light up, it means that the braking system is faulty, and first check whether the bulb of the warning light of the braking system is invalid; If the bulb is normal, check the braking system again.

The steps of disassembling and assembling the brake disc are: 1. Disassemble the tire and the brake cylinder; 2. Disassemble the rear wheel assembly, and use special tools when disassembling the rear wheel bearing cover, so as to avoid destroying the seal of the bearing cover when prying it open with a slotted screw; 3. Disassemble the baffle of the rear brake disc, and clean up the dust in the bearing sleeve after dismantling; 4. Install a new brake disc baffle, tighten the rear wheel bearing and install the bearing cover; 5. Take out the sub-pump bracket; 6. After installing the brake pads, install the brake cylinder, and tighten the screws of the cylinder and the bracket; 7. Install the hub.

When the braking system warning light lights up the slag, indicating that the brake tie shield system is faulty, which may lead to the failure of the brake, which needs to be overhauled in time, otherwise it will affect the driving safety, and the reasons for the failure light of the automobile braking system are as follows:

functional failures; 2.The brake pads are badly worn and malfunctioning; 3.The brake fluid does not meet the requirements. Abnormal braking system manifestations include poor braking or malfunction, unilateral braking deviation, braking noise, brake drum heating caused by braking resistance, and parking brake failure.

If the brake fluid is insufficient, it may affect braking performance and driving safety. The vehicle should be sent to a repair shop for repair as soon as possible. When releasing the handbrake during normal driving, if the brake warning light is on, you need to get out of the car in time to check whether there is any hidden danger.

If the brake system fault light is on and the handbrake is still on, check that the brake fluid level is normal or that the brake pads are too thin.

If the braking force does not weaken at this time, you can drive cautiously and go to a nearby repair shop as soon as possible to repair it. The quality of the brakes is directly related to driving safety.

Braking systemThe way to disarm the warning light is as follows:

1. Brake pads.

Serious wear, brake pads are divided into two kinds with induction line and without induction wire, with 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. Brake pads need to be replaced;

2. Brake fluid.

If the fluid level is too low, beware of leaking brake fluid.

The lack will also be accompanied by a significant lack of braking force, and even a loss of braking force will occur in serious cases. In this case, the warning light will turn on. As long as the brake fluid is replenished in time;

3. Oil leakage and false alarm of the brake system. It directly affects the technical performance of the car, resulting in the waste of lubricating oil and fuel, the consumption of power, the cleanliness of the car, and the noisy pollution of the environment. This will cause the fault light to illuminate and the gasket or oil seal will need to be replaced.

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Judgment and elimination of automobile braking system faults.

1. Press the brake pedal continuously.

If the pedal is gradually raised and has a springy feeling, but it is still very low when you press the pedal after stopping for a while, it means that there is air in the braking system, and the braking system should be exhausted.

2. One foot braking does not make a noise, but the braking effect is very good when pressing the pedal several times in a row, generally because the free stroke of the brake pedal is too large or the braking clearance is too large. The free travel of the pedal should be adjusted, and then the brake clearance should be checked, and the brake disassembly repair should be carried out if necessary.

3. When stepping on the brake pedal, it is not weak or sinking, but the braking effect is poor, which is the fault of the wheel brake, such as the brake shoe has oil or poor contact, the friction plate is aging, wearing, and the brake drum is worn unevenly. The condition of the braking technology should be checked and adjusted and repaired if necessary.

When everything is working properly with the braking system software, the brake warning light will only flash when the brake is pulled on and will go off when the brake is released. It is a reminder to the driver that the brakes have been completely loosened before driving. If the hand brake is completely loosened, but the brake system warning light is still on, it usually means that there is not enough brake fluid in the brake fluid tank.

Insufficient brake fluid and too low a level gauge are likely to increase braking deceleration, and a higher foot pedal travel arrangement is required to obtain a higher braking system effect.

There are certain risk factors, and it is best to stop and check immediately. In such cases, carefully pull over to the side of the road, check the brake fluid, and add the manufacturer's highly recommended brake fluid to a larger mark. Check whether the actual operation of the braking system is normal, and distinguish whether the driving is safe.

If the braking system is actually operating normally and driving safely, please drive carefully and safely, and go to the recent after-sales maintenance service management center to carry out maintenance. If you notice a leak, or the alarm light is always on, or the brake pedal is not working properly, please tow the car to the nearest after-sales service management center for maintenance.

When the hand brake is pulled, the motor is turned to the ON position, if the brake system warning light is not on, it indicates that the brake system has a common fault. The first thing to check is whether the bulb of the warning light of the brake system is invalid. If everything is fine with the light bulb, check the brake system again.

When the alarm light of the brake system software flashes, indicating that the brake system is found to be abnormal in a certain position, it is necessary to rush to the car 4S shop as soon as possible to check and repair, and can not ignore the trip again. The alarm light of the braking system software is on, which may be due to insufficient brake fluid or abnormal braking system, which is mainly manifested as poor or failed braking system, unilateral deviation of braking system, noise of braking system, and lag of braking system.

Under normal conditions of braking system software, the brake system warning light will only flash when the brake is pulled, and then extinguish when the brake is released, which has the effect of prompting the driver that the brake has been completely released before driving; If the brakes are completely released, but the brake system warning light is still on, it mostly means that there is not enough brake fluid in the brake fluid tank; Insufficient brake fluid, low liquid level gauge is likely to increase braking deceleration, must be higher pedal stroke arrangement can get higher braking system actual effect, it is very dangerous. Of course, it's best to park your car right away and do the test.

If this kind of problem occurs in the car, you must go to the repair shop or 4S shop in time to deal with it.

The handbrake is not released or is not released to the end (check the handbrake); Insufficient brake fluid level (check brake kettle level).

Abnormalities in the braking system are manifested in poor braking or malfunction, unilateral braking deviation, braking noise, brake drum heating caused by braking lag, and parking brake failure. If the brake fluid is insufficient, it may affect the braking performance and driving safety, and the vehicle should be sent to the repair shop for maintenance as soon as possible.

Extended Materials. Common faults in the brake system.

1. Brake failure.

When braking is used while driving, the car cannot slow down or stop; After one or more successive braking, the braking suddenly does not work. The cause of the failure may be oil or air leakage in the brake line, rupture or detachment of the pipe joint, failure of the brake sealing element, etc.

2. Poor braking effect.

When braking is needed in the driving process, the braking force is obviously insufficient, the brake pedal position is low or the idle stroke of the brake pedal is large during braking, the braking effect is still poor after continuous multi-foot braking during braking, and the braking distance and braking time are significantly increased during emergency braking.

The cause of the failure may be the poor sealing of the brake sealing element or the loose fit between the piston and the cylinder wall of the brake cylinder, the bubbles mixed in the brake oil circuit, the poor contact of the brake element or the oil stain of the brake pad.

Ask what happened when the brake light came on.

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First: the brake system fault indicator will light up in the following situations, the brake fluid is missing or the fingers are not let go Second: first of all, you need to check the brake fluid to open the engine compartment cover, find the brake fluid, check that the brake fluid is normal, it should be between the upper and lower lines of the brake fluid pot, if it is lower than the offline braking system, the fault light will alarm, and the brake fluid needs to be added in time Third:

If there is no problem with the brake fluid level, do you need to check if your fingers are put to the end? If you put your finger to the end, it may be that the sensor of the braking system is faulty, and it is recommended that you go to a nearby 4S shop for repair. The above is the information for you, I hope my answer will be helpful to you.

Question: What should I do if the brake system is faulty and the light is on.

You can check it yourself first according to what I said above, and if there is no problem with checking the above two by yourself, it is recommended that you contact the 4S shop of the vehicle.

The reasons why the brake system fault light is lit are:

1.Lack of brake fluid, in which the cause of the lack of brake fluid is the pipeline or the main cylinder, sub-cylinder oil leakage.

The sensor is damaged, or the ABS sensor line is short-circuited or open-circuited.

The main cylinder plug is rusty and has poor contact.

Damage to the inside of the master cylinder. When one of these problems occurs, it will cause the instrument to light up the brake system fault light.

When the braking system fault light is on, the ABS anti-lock braking system does not work. So go to the repair shop as soon as possible to repair, read the fault code, and narrow down the inspection scope according to the fault code. The vast majority are ABS sensor damage.

Because the sensor is on the inside of the tire, it is easy to get damaged when it comes into contact with mud or water.

After the brake is pressed, the master cylinder generates a thrust to press the hydraulic oil to the cylinder, and the piston inside the cylinder begins to move under hydraulic pressure to push the brake pads. The oil brake is made up of a brake master cylinder and a brake fluid reservoir. They have the brake pedal attached to one end and the brake hose to the other.

The brake master cylinder is stored with brake fluid, and there are oil outlets and oil inlets. When the brakes are applied, the oil outlet opens and the oil inlet closes. Under the pressure of the piston of the pump body, the brake oil pipe is squeezed out of the oil pipe and flows to each brake cylinder for braking function.

When the brake plate is released. The oil outlet in the brake master cylinder will be closed, and the oil inlet will be opened, so that the brake fluid will flow back from each brake cylinder to the brake master cylinder and return to the original state.

The car's brake failure light is on. If the owner of the car is driving, don't panic, try to slow down, then pull over and choose a safe place to park as soon as possible. First of all, check whether the brake fluid is noisy and lacking, and if so, pay attention to whether there is oil leakage.

the second is to check the degree of wear of the brake pads; Third, check if the parking switch is put back in place. Next, it is best to check with a fault detector, which can quickly and accurately find out the fault in the first place, and then find out the cause step by step.

A braking system that forces a car to travel at a reduced speed. The braking system is mainly composed of energy supply device, control device, transmission device and brake. The main function of the braking system is to slow down or even stop the moving car, keep the speed of the downhill car stable, and keep the stopped car stationary.

Therefore, if the braking system is late and there is a positive collision alarm, then the car will find the fault as soon as possible** and then fix it in time.

There are other factors that can cause the brake warning light to illuminate, such as false alarms. When driving uphill or braking suddenly, the level indicator will give a false alarm due to the excessive slope and the oil rolls over. For this occasional tip, a moderate amount of brake fluid replenishment is sufficient.

There are the following solutions to the braking system warning light:1. Check whether the brake fluid level is normal, and refill it in time if the brake fluid is missing.

2. There may be a problem with the sensor in the brake oil can, and the oil pot should be replaced in time.

3. If the handbrake switch is faulty, the handbrake needs to be disassembled before it can be checked.

Try your best to reduce your speed, choose a safe place to stop, and carry out relevant inspections.

The solution for the warning light of the braking system is as follows:

1. When the warning light of the car braking system is on, reduce the speed of the car as much as possible and then pull over as soon as possible to choose a safe position to stop and detect the car.

2. The warning light of the automobile braking system is on because there is oil leakage in the brake cylinder and oil pipe, and the leakage should be checked immediately and repaired and replaced.

3. When driving uphill or braking suddenly, the warning light of the braking system is on because the slope is too large and the oil is rolling, which will cause the false alarm of the liquid level indicator, and the appropriate amount of brake fluid can be replenished.