What causes the brake lights to stay on after the car is turned off?
2 Answers
Specific reasons and solutions for the brake lights staying on after the car is turned off are as follows: 1. Headlight switch in automatic position: When the headlight switch is in the automatic position, not only the rear lights but also the front lights stay on after the car is turned off. The lights will automatically turn off after the car is parked for a while or after locking the vehicle. Solution: The lights will automatically turn off after the car is parked for a while. 2. Brake light switch damage: A damaged brake light switch can cause the rear lights to stay on. Solution: Replacing the switch can solve the problem, and it is not expensive. 3. Tail light circuit issue: Problems with the tail light circuit can also cause this phenomenon. Solution: Have it inspected and repaired at a service center as soon as possible.
Once my car had the same issue, the brake lights stayed on after turning off the engine, which was really annoying. I checked and found that the brake switch was stuck and didn't reset, possibly due to a small stone or dust stuck under the pedal. After cleaning it, everything went back to normal. Switch aging is also common, while wiring short circuits are more troublesome but less frequent. You can try stepping on the pedal a few times to see if the lights turn off. If they don't, you'll need to open the hood and check the switch position. Keeping the lights on for a long time will drain the battery, and it might be half empty overnight, making it impossible to start the car, so don't wait. There are many related risks, such as parking randomly in the neighborhood with the lights on, which might attract complaints from security guards. Handling it promptly saves both trouble and money. If all else fails, spending a few dozen bucks to buy a new switch and replace it is a simple DIY job.
