What usually causes it
- A failed or out of adjustment brake switch
- A blown brake light fuse or bad bulbs
- A damaged wire or a loose plug
- A brake pedal that is not touching the switch
The brake switch tells the car when you press the brake pedal. It also turns on the brake lights, and the cruise control uses it.
Ask someone to stand behind the car and tell you if the brake lights come on when you press the pedal. Fix this first if they do not.
We rate P0571 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
Brake switch circuit problem. The brake switch tells the car when you press the brake pedal. It also turns on the brake lights, and the cruise control uses it.
We rate P0571 as Get it checked this week. It is not an emergency yet, but it can get worse. If the light starts flashing, stop driving soon.
The most common causes, in order: A failed or out of adjustment brake switch; A blown brake light fuse or bad bulbs; A damaged wire or a loose plug; A brake pedal that is not touching the switch.
Estimates only. A mechanic should confirm. The same code can mean slightly different things on different cars; the app explains it for your exact year, make, model and mileage.