What Causes the Brake Light to Stay On? How to Fix It?
2 Answers
The reasons and solutions for the brake light staying on are as follows: 1. Check if the brake pads are worn to the limit and replace them in time; 2. The brake light switch can be adjusted—remove, adjust, and reinstall the switch; 3. The brake switch is faulty—the switch is installed above the brake pedal, so repair or replace the switch; 4. Check if the brake fluid is low and top it up in time; 5. Inspect the brake bulb for damage—the brake light is usually installed at the rear of the vehicle, with a red-colored body to enhance light penetration. This ensures that vehicles behind can easily detect braking even in low visibility conditions, helping to prevent rear-end collisions. In simple vehicle models, power flows through a fuse to the brake switch. When the brake pedal is pressed, the switch connects, sending electricity to the two brake lights and the high-mounted brake light, completing the circuit via the negative line connected to the vehicle body.
Last time my car's brake light kept staying on, I was so worried thinking it was a short circuit. Turned out the little switch under the brake pedal got stuck and didn't reset, keeping the signal on to light up. I foolishly checked the wiring for ages before finally replacing the switch to fix it. If you encounter the same issue, first try pressing the pedal to see if it springs back. If not, quickly check the fuse location—look for the 'brake light fuse' in the engine compartment's fuse box and pull it out to see if it's blown. Remember, don't force driving with it on—not only does it drain the battery, but if the car behind misjudges your braking status, an accident could spell big trouble. I recommend getting it checked at a proper repair shop for wiring or part replacement—saves hassle and peace of mind.
