Check MyEngine Light
P0571Starts at: Get it checked this week

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.

ElectricalFix: Moderate, basic tools

What usually causes it

  1. A failed or out of adjustment brake switch
  2. A blown brake light fuse or bad bulbs
  3. A damaged wire or a loose plug
  4. A brake pedal that is not touching the switch

Check this first

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.

What to watch for

  • Brake lights that do not come on, or that stay on
  • Cruise control not working
  • Trouble shifting out of Park, or trouble starting the car

Can I keep driving?

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.

Quick answers about P0571

What does P0571 mean?

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.

Can I keep driving with P0571?

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.

What usually causes P0571?

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.