How to Resolve the Brake Light Malfunction Warning in Focus?

1 Answers
MacValeria
07/30/25 5:33am
Focus brake light malfunction warning is caused by a damaged brake light bulb. Apart from bulb issues, it could also be due to excessively thin brake pads or low brake fluid level triggering the warning light. Measures: If the bulb is damaged, promptly replace it with an OEM bulb and check if the issue is resolved. If the problem persists, it's necessary to visit a 4S shop for brake pad inspection and repair. Focus Brake Light Bulb Specifications and Replacement Instructions: Bulb: The Focus brake light bulb model is P21 with a rated power of 21w. Red Light: Brake lights are generally installed at the rear of the vehicle, featuring a red-colored main body to make it easier for following vehicles to notice when the front vehicle is braking, thereby helping to prevent rear-end collisions.
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