What is the Brakewear warning light?

[VanPresley]

It indicates a brake system malfunction. Below is relevant information about Brakewear: 1. Parking brake engaged: If the parking brake is not released or not fully released, it will cause the brake warning light to stay on, reminding the driver to release the parking brake before starting. 2. Insufficient brake fluid: Low brake fluid level can affect the vehicle's braking performance and driving safety. 3. Brake master cylinder or brake line leakage: If brake fluid was recently topped up but the vehicle shows low brake fluid again, check for leaks in the brake master cylinder or lines. 4. Air in brake system: If you feel weak braking or insufficient stopping power when applying the brakes, it indicates air in the brake system. In this case, check for leaks in the vacuum booster pump.

[StephenDella]

The first time I saw the brake wear light come on, I was also confused. Later, after checking some information, I learned that it's the brake pad wear indicator light. Modern car brake pads are equipped with sensor wires. When the friction material wears down to the limit, the circuit is completed, and this light turns on. Once, my car suddenly lit up this light on the highway, and I quickly used my phone to look up a guide on replacing brake pads. I found that the rear brake pads had worn down to only 3 mm. If not replaced, the metal backing would directly scratch the brake disc. This situation must be addressed as soon as possible. Generally, replacing a pair of brake pads costs around three to four hundred yuan, but don't delay. Excessive wear can lead to longer braking distances or even brake failure. Now, during every maintenance check, I specifically ask the mechanic to inspect the thickness of the brake pads.

[VonElliott]

During my last road trip, a small red light suddenly appeared on the dashboard, shaped like a parenthesis with a wavy line inside. I later learned it was the brake wear warning. The mechanic explained it's a brake pad life alert system - when the friction material is depleted, the sensor wire contacts the metal rotor to complete the circuit and trigger the warning. This is quite a user-friendly design. My car has already done 60,000 km, with the front brake pads recently replaced. Vehicles where rear pads wear faster are most prone to this situation. If the light comes on during mountain driving or when fully loaded, extra caution is needed as braking power will noticeably decrease. It's recommended to replace the pads within 10 days after the warning appears, otherwise the metal backing plate scraping against the rotor makes a distressing noise.

[McKarter]

I drove my new car for three years before seeing the brake wear light for the first time. Checking the manual revealed it was a brake pad wear warning. The principle is actually simple: a pre-installed alarm wire in the brake pad shorts and triggers the signal when worn through. This light indicates the remaining friction layer is less than 3mm, and replacement is urgently needed. A friend of mine ignored it for a few more weeks, resulting in deep grooves on the brake discs during emergency braking, doubling the repair cost. Most mainstream models now come with this warning system. Japanese cars typically light up after 40,000 kilometers, while German cars are relatively more durable. The key is not to inspect it yourself, as worn brake pads are very fragile and prone to cracking.

[Lacey]

During last week's maintenance, I noticed the brake pad indicator on the dashboard was lit. The technician explained it was a brake wear warning. When the sensor wire inside the brake pad gets worn through, it triggers the alarm, indicating the friction material is nearly depleted. The most dangerous situation is uneven wear between left and right brake pads - a single-side warning light can cause braking deviation. My previous car owner experienced this; the right front wheel warning light came on but wasn't repaired promptly, resulting in a near rear-end collision during emergency braking on a rainy day. When replacing brake pads, consider the type: ceramic pads are quiet but expensive, while semi-metallic pads are cheaper but tend to generate more dust. It's recommended to lubricate the caliper guide pins at the same time to prevent poor retraction that accelerates wear.

[ORyan]

My old car's brake wear warning light came on, and I learned from the repair shop that it's a brake pad life alert. This design is quite practical—the sensor embedded in the brake pad completes the alarm circuit when worn down to a preset position. Interestingly, the triggering methods differ between old and new models: older cars rely on mechanical contact, while newer ones mostly use electronic signals. Once, I saw someone in a car group cover the warning light with tape and keep driving, only to end up with sparks flying when braking. Normal brake pads can last 40,000-60,000 km, but for cars frequently driven on mountain roads, getting an alert at just 20,000 km isn’t unusual. After the light comes on, it’s best not to drive more than 500 km without inspection—both the discs and pads should be checked, or you’ll pay more in the long run.