Many important driver assistance functions are included for better control modern cars. The braking function is one of the best features of the system.
In this article, we will talk about the importance of the “service Brake support” warning.
We also cover common causes of brake maintenance and tells you how to fix them.
What Does Service Brake Assist Mean?
There has been a problem with the brake assist system when the Service Brake Assist message appears on the dashboard. It’s possible that the brake system doesn’t have enough pressure or that one of the brake sensors has failed.
In any case, it needs to be examined immediately. The amount of pressure applied to the pedals is controlled by brake assist. This sophisticated system provides the extra power in case an emergency arises and more pressure is required.
Causes of the Service Brake Assist Message
Depending on the model of the car, a faulty brake light switch or brake pressure sensor is usually to blame if you see a service brake assist message without an ABS light or any other message. But this message can appear for a variety of reasons, so a proper diagnosis is required.
The most common reasons why the Service Brake Assist message appears are as follows:
- Old Brake Fluid
- Faulty ABS Sensor
- Faulty ABS Ring
- Wiring issues
- Bad Brake Pressure Sensor
- Bad Brake Booster Check Value
- Vacuum Leaks to the Brake Booster
- Faulty Brake Booster
There might be more serious problems with the brake system if this message appears in your Chevrolet along with a service traction control, service stabiltrak, and ABS light.
How to Fix the Service Brake Assist Message?
Follow These steps for fix the Service Brake Assist message.
- Reset the Light
- Read the Trouble Codes
- Check Brake Fluid
- Check Brake Pressure Sensor
- Check Vacuum Leaks and Check Valve
- Replace Brake Boosters
- Talk to a Mechanic
1) Reset the Light
There’s always the possibility that the light accidentally turned on. Even though it’s unlikely. You should role it out before continuing. You can confirm there is a problem by resetting the brake assist light. An OBD2 scanner is the best tools for this.
You can disconnect the faulty cable from the battery while the vehicle is stationary and the engine is off. Get inside your car and depress the brake pedal until the interior is completely free of electricity. After it’s finished, reconnect the cable to the battery and turn on the engine. Here the lights need to be turned off. Take the car for a test drive and see if the light comes back on. In that case, you must proceed to the next set of instructions.
2) Read the Trouble Codes
Modern cars usually have trouble codes that can be read with an OBD2 scanner, which makes diagnosing issues much simpler. Either purchase an OBD2 scanner for your use at home. Though if your car is equipped with a brake assist system, you might also need a specific scanner made for the model.
Once you have this information, read the code and continue troubleshooting.
3) Check Brake Fluid
Brake fluid in the system contributes to the problem. This hydraulic fluid is used by the brake assist system and is required when pressure is applied to the pedals. You might not apply enough pressure to the brake pedal to stop in time if the system is low.
Because the dipstick cap and reservoir have clear indicators, it’s easy to tell if more should be added. A brake fluid flush may be more beneficial if the fluid appears contaminated or dirty. Usually indicated on the recommended maintenance schedule, this professional service could run you about $100. This Should be done every two years or 30,000 kilometers (whichever comes first).
4) Check Brake Pressure Sensor
One of the biggest problems in brake assist system is the brake sensor. To solve this problem, need to be replaced this sensor. This is usually located in the ABS unit or brake master cylinder, depending on the condition on your vehicle.
Pieces cost between $10 and $150. Even if you need a mechanic to install the sensor, you may only spend 75 to $200.
5) Check Vacuum Leaks and Check Valve
The brake booster needs vacuum to activate the feature. To create a vacuum, most cars have a hose that run from the engine intake manifold to the brake booster,
Additionally, a check valve, which would result in low brake pressure and the possible activation of the service brake assist system. Another possibility if your engine is diesel is a malfunctioning vacuum pump.
6) Replace Faulty ABS Parts
If the traction control or ABS lights are on in addition to the service brake assist message, there might be an issue with the ABS system rather than the brake assist system.
A broken ABS sensor, ABS ring, or ABS pump are the most frequent issues with the ABS system that can result in issues with brake assist.
7) Replace Brake Boosters
The component that increases the power from the pedal to the brake system is called the brake booster. It is the element that sets apart a manual setup from a power-assist braking system. A service brake assist warning light may appear if the brake booster fails.
If you choose to fix it yourself, the brake booster may cost between 100 and $500. You may have to pay an additional 150 to $450 for labor if you have to pay a mechanic. But keep in mind that these are only estimates, and the exact amount you pay will depend on the type, year, and make of your vehicle.
Talk to a Mechanic
It’s time to consult your mechanic if none of these fixed worked. Identifying
The issue with complex technology like the Brake Assist system can be challenging. Certified mechanics however, have access to better diagnostic tools and equipment. They may therefore be more qualified to identify the issue.