Why does the brake light of the new Jetta stay on after releasing the pedal?

1 Answers
AliceDella
07/29/25 3:29pm
New Jetta brake light always stays on for the following reasons: 1. Brake fluid function: Lack of brake fluid is an indispensable part of the vehicle's braking system. When the driver steps on the brake pedal, the force applied is transmitted by the piston in the master cylinder through the brake fluid to the wheel cylinders located at each wheel, causing the brake pads to contact the wheels and stop the vehicle. 2. Insufficient brake fluid: If the tail light bulb is damaged or the brake fluid level in the reservoir falls below the minimum line, the sensor beside the reservoir will detect this and reflect it through the brake warning light on the dashboard. If the brake fluid decreases rapidly, it indicates a leak in the braking system. 3. Severely worn brake pads: The light will also stay on if the brake pads are severely worn, requiring replacement.
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