P0571 — Cruise Control Accel Signal Malfunction
Can drive — fix at your convenience.
What P0571 means
This code appears when the computer detects a fault in the 'accel' signal from the cruise control switch, which is what raises your speed while cruise is active. It's typically caused by a worn cruise control switch, damaged wiring or a corroded connector near the steering wheel, or a failing control module. The fix is usually simple, often just cleaning or replacing the switch or repairing a wire.
Common symptoms
- Check engine light is on
- Accelerate function on cruise control doesn't work
- Cruise control won't increase speed when commanded
- Cruise control turns off on its own
- Cruise control switches feel unresponsive
Common causes
- Worn or faulty cruise control accel switch
- Damaged wiring or corroded connector in the steering wheel
- Failing clock spring under the steering wheel
- Faulty cruise control or body control module
- Short or open in the accel signal circuit
Typical repair cost
$90 – $350
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0571 code?
Yes. This code only affects the cruise control system, so the car drives normally and safely. You just may not be able to rely on cruise control until the issue is fixed.
How much does it cost to fix a P0571 code?
Repairs typically range from $90 to $350. A switch cleaning or replacement is inexpensive, while wiring work or a module replacement raises the cost.
Is a P0571 code serious?
No, it's a low-severity code. It poses no risk to your engine, transmission, or safety, but fixing it restores full cruise control function.
Why won't cruise control speed up with a P0571 code?
The accel input that tells the computer to raise your set speed isn't reaching it correctly, usually because of a bad switch or wiring. The system ignores the faulty signal, so the accelerate feature stops responding.