How to Solve the Problem of BYD Brake Light Staying On?

3 Answers
McJordan
07/28/25 12:01pm
BYD brake light staying on solution: It is necessary to promptly go to a repair shop or 4S store for professional inspection and repair to prevent affecting the normal use of the car. The BYD brake light staying on is generally caused by a damaged switch, resulting in continuous contact between the two. BYD is a private enterprise with three major industrial groups: IT, automobiles, and new energy. Taking its model BYD Song as an example, it is positioned as a new energy compact SUV. In terms of body size, the BYD Song has a length, width, and height of 4565mm, 1830mm, and 1703mm respectively, with a wheelbase of 2660mm. In terms of power, the BYD Song is equipped with a plug-in hybrid system consisting of a 1.5T engine and two electric motors.
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DiArthur
08/11/25 4:51pm
As a seasoned driver with years of experience driving domestic cars, I've encountered the issue of BYD brake lights staying on multiple times and would like to share some insights. The most common cause is a stuck or faulty switch beneath the brake pedal, which keeps sending the signal continuously. My approach is to first find a safe spot to park and turn off the engine, then crawl under the driver's seat to locate that small switch and try pressing it to reset. If the light goes off after resetting, the issue is resolved; otherwise, replacement might be necessary. A short circuit in the wiring could also be the culprit—using a simple test pen to check the circuit continuity is advisable. Remember, not fixing it promptly can drain the battery quickly, leading to a more troublesome breakdown on the road; constant illumination of the brake lights can also mislead following vehicles, increasing the risk of rear-end collisions. During routine maintenance, remind the technician to inspect the switch and circuitry—prevention is more cost-effective than repairs. Driving safety is paramount, so never overlook minor issues.
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SanKarter
09/28/25 6:14am
Recently, the brake lights on my BYD Qin suddenly stayed on constantly, which really scared me. As a mom who drives my kids around, safety is my top concern. I first tried gently pressing the brake pedal multiple times to see if the lights would change, but it didn’t work. After a simple self-check, I suspected it might be a faulty brake switch, which is located in an easily accessible spot under the front of the driver's seat. However, if you're not comfortable handling it yourself, I immediately took it to the 4S shop for inspection. The technician said this is a common issue and replacing the switch wouldn’t cost much. Delaying repairs not only drains the battery and affects startup but also makes it hard for the car in front to see your signals at night, increasing the risk of accidents. It’s a good habit to walk around the car and check the lights before driving, and I also teach my kids in the back seat to pay attention to safety details. If you notice anything unusual, pull over and address it immediately—never take the risk of continuing to drive.
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