Why is the car brake light always on?

1 Answers
ElizabethFitz
07/30/25 4:53am
The reasons for the brake light staying on are as follows: 1. Lack of brake fluid: It is an indispensable part of the car's braking system. When the driver steps on the brake pedal, the force from the pedal is transmitted by the piston of the master cylinder through the brake fluid to the wheel brake cylinders, causing the brake pads to contact the wheels and stop the vehicle. 2. Check if the brake switch has poor contact or has not reset after loosening: Inspect the brake wiring for poor contact or short circuits; check if the brake pedal pad is intact, if the brake rubber ring is severely worn, or if the brake switch is damaged. 3. Severe wear of brake pads: If the brake pads are severely worn, the light may stay on, requiring replacement of the brake pads.
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