What is the reason for not being able to shift gears after the brake switch is damaged?

2 Answers
DeFaith
09/07/25 5:37am
The reason for not being able to shift gears after the brake switch is damaged is that the computer cannot receive signals normally after the brake switch is damaged. The following is a detailed introduction about automobile brakes: 1. Brake: Brake, also known as deceleration, refers to the action of stopping or reducing the speed of running locomotives, vehicles, other transportation tools or machinery. The brake device is a mechanical braking device that can slow down the speed, also known as a decelerator. 2. Brake system: The brake system consists of a control system, a hydraulic system and a power assist system. The control system is the pedal, handbrake, etc. The hydraulic system consists of hydraulic oil, brake pump and hydraulic oil pipe. The power assist system is the vacuum booster pump. The electronic control system consists of ABS pump, ABS sensor and ABS computer. The execution system consists of brake caliper, brake pad and brake disc.
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Alex
09/19/25 4:53am
I've encountered the issue where the car won't shift gears after the brake switch fails, and it's quite frustrating. Essentially, when the brake switch is broken, it can't send an electrical signal when you press the brake pedal. The vehicle's computer doesn't receive the signal, so it doesn't know you've pressed the brake, and it defaults to locking the transmission to prevent gear changes. This design is a safety feature to prevent accidental gear shifts that could lead to accidents. I had the same problem with a friend's car before, and it took a while to fix. Most brake switches are located behind the pedal and are made of plastic, which tends to wear out over time, causing them to stick or break. If you need the car urgently, it's best not to tamper with it and instead take it to a professional shop for inspection and replacement. Otherwise, a malfunction while driving could be even more dangerous. The switch itself isn't expensive to replace, but you'll need to remove the lower dashboard cover, which is a bit of a hassle.
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