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What Causes the Brake Light on the Car Dashboard to Stay On?

2 Answers

FelixDella

07/24/25 5:16pm

Reasons why the brake light on the car dashboard stays on: 1. Severe wear of brake pads; 2. Insufficient brake fluid; 3. Faulty brake switch. The car dashboard is a device that reflects the working conditions of various vehicle systems, including: 1. Fuel indicator light: When lit, it indicates that the fuel is almost depleted; 2. Washer fluid indicator light: The light turns on when the washer fluid level is low, prompting the owner to refill it in time; 3. Battery indicator light: The light turns on when the ignition is switched on and turns off after the engine starts; 4. Front and rear fog light indicators: Both lights turn on when the fog lights are activated; 5. Turn signal indicator: The corresponding indicator light flashes at a certain frequency when the turn signal is on.

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LeEmilio

08/11/25 9:31am

With decades of experience in driving and auto repair, I've encountered numerous cases where the dashboard brake warning light stays on. This usually occurs due to low brake fluid levels, as the sensor detects insufficient hydraulic pressure and illuminates the warning light. Possible causes include minor leaks in the braking system (such as aging hoses or damaged caliper seals causing fluid leakage) or normal fluid depletion without timely replenishment. Additionally, faulty brake light switches or poor electrical connections can trigger the light, and ABS module malfunctions may also activate this warning. Never ignore this warning light as it may indicate compromised braking performance, especially dangerous during high-speed driving. Safety first – pull over immediately, check the brake fluid reservoir level under the hood, and add appropriate DOT 4 brake fluid if low. However, it's best to visit a professional repair shop promptly for comprehensive inspection to prevent deeper issues. I typically recommend inspecting the braking system every 20,000 kilometers as preventive maintenance against such failures.

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How many years can a Baojun 510 car last?

How many years a Baojun 510 car can last depends on its usage. With good maintenance, it can last longer. Here is more information about car maintenance: 1. Introduction: Car maintenance, also known as car servicing, refers to the regular preventive work of inspecting, cleaning, supplying, lubricating, adjusting, or replacing certain parts of the car. 2. Purpose: To keep the car clean and in good technical condition, eliminate potential hazards, prevent failures, and extend its service life. 3. Types: Regular maintenance is divided into three aspects: body maintenance, interior maintenance, and body refurbishment.

What Causes Abnormal Noises in a Car?

If the car makes a squeaking sound when driving at low speeds, it is likely coming from the suspension. The car's suspension includes components such as links, springs, shock absorbers, and stabilizer bars. If any of these parts are abnormal, such as loose bolts, they may produce abnormal noises due to movement. The details are as follows: 1. Inside the car: If the noise comes from inside the car, it is necessary to check whether the clock spring under the steering wheel and the universal joint inside the steering column are functioning normally. Wear or malfunction of these two components can cause abnormal noise. 2. Outside the car: If the noise comes from outside the car, it is necessary to check whether the upper plane bearings of the two front shock absorbers are worn, whether the ball joints of the steering gear are loose, and whether the internal rack and pinion of the steering gear are worn. Malfunction of these three components can lead to abnormal noise in the vehicle.

Is it necessary to drive the car for out-of-town vehicle registration transfer?

Out-of-town vehicle registration transfer requires driving the car to the destination and completing the registration process at the local vehicle management office. Below are the procedures involved in out-of-town vehicle registration transfer: 1. Suspicious vehicle investigation: Mainly involves verifying whether the engine and chassis numbers have been altered, whether they match the original records, and whether the vehicle is stolen. 2. Issuance of a used car transaction invoice: For vehicles under customs supervision, the 'Notice of License Plate Collection/Cancellation for Customs Supervised Vehicles at the Border (Exit) of the People's Republic of China' issued by the supervising customs must be submitted, along with the identity proofs of the transferor and transferee (or unit), and relevant documents pertaining to the vehicle.

What does vehicle VIN mean?

Vehicle VIN (Vehicle Identification Number) is a 17-character code that includes information about the manufacturer, year, model, body type, engine code, and assembly location of the vehicle. The details are as follows: 1. The functions of the VIN are: (1) To identify the vehicle; (2) To check traffic violations; (3) To query vehicle batches; (4) To accurately locate parts. 2. The locations of the VIN are: (1) On the left side of the dashboard; (2) On the lower left side of the windshield; (3) On the vehicle's nameplate; (4) On the body near the upper part of the right front shock absorber; (5) In the trunk area; (6) On the door hinge pillar, door lock pillar, or one of the door edge pillars connected to the door lock pillar.

Why is it necessary to replace brake fluid regularly?

Here are the reasons for replacing brake fluid: 1. Brake fluid, commonly known as brake oil, has a limited service life. Unopened brake fluid typically has a shelf life of about 3 years, while opened brake fluid lasts about 1 year. 2. Expired brake fluid gradually emulsifies and deteriorates. During the emulsification process, bubbles may form and accumulate in the pipelines, unable to be released. This creates air resistance, affecting the normal transmission of hydraulic pressure and leading to reduced braking performance or even failure. Additionally, brake fluid has strong water absorption properties. Over time, absorbed water lowers the boiling point of the brake fluid, resulting in insufficient brake pressure and compromised braking effectiveness. 3. Using brake fluid beyond its recommended service period may not affect daily driving, and there may be no noticeable abnormalities. However, during downhill driving or aggressive driving, the high temperatures generated by the braking system can cause the brake fluid to boil. This can lead to bubble formation in the brake lines, severely affecting the operation of the braking system in extreme cases. Brake failure caused by boiling brake fluid often occurs suddenly without warning.

What to do if the driver's license renewal is one month overdue?

If the driver's license is one month overdue, it can still be renewed normally. Time regulations: If the license is overdue for less than one year, it can be renewed normally; if it is overdue for more than one year but less than three years, the license will be revoked, but it can be renewed by passing the subject one exam; if it is overdue for more than three years, the license will be invalid and cannot be renewed. Renewal process: The motor vehicle driver should bring the required materials and apply for renewal at the vehicle management office where the driver's license was originally issued. The vehicle management office will process the renewal within one working day after approval. Penalties for overdue driver's license: Driving a motor vehicle during the overdue period is not allowed and will be treated as driving without a license. If the driver's license is overdue for less than one year, the driver can renew it at any time, but if caught driving, a fine of 200 yuan will be imposed. If the driver's license is overdue for more than one year without renewal, the traffic management department will revoke it. If the overdue period is less than three years, the driver must retake and pass the subject one exam to restore driving privileges. Driving during this period will result in a fine ranging from 200 to 2000 yuan. If the driver's license is overdue for more than three years, it will be permanently revoked. To drive again, the driver must retake the driver's license exam. Otherwise, driving will be treated as driving without a license, resulting in a fine of 2000 yuan and up to 15 days of administrative detention.

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