Why is the handbrake light on the dashboard always on?

1 Answers
SamanthaDella
07/30/25 1:21am
If the brake light remains constantly illuminated, several potential fault conditions can be identified, including insufficient brake fluid, damaged brake switch, faulty taillight circuit, or worn/aged brake pads. Below is relevant information: 1. Brake fluid plays a crucial role in a vehicle's braking system. When the driver presses the brake pedal, the force applied is transmitted by the master cylinder piston through the brake fluid to individual wheel cylinders, causing the brake pads to contact the wheels and stop the vehicle. 2. Worn or aged brake pads may also cause the brake light to stay on. In this case, the brake pad thickness should be inspected. If the thickness falls below the specified value (typically 0.8cm), there's significant risk of pad fracture during driving, which could be dangerous.
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