P0574

Cruise Control System - Vehicle Speed Too High

Q: Is it safe to drive with P0574?

Yes. The engine and brakes work normally — this only disables cruise control. Have the brake-light switch checked, since a faulty one can also affect brake lights.

Q: Can I just clear P0574?

You can, and it may stay off if it was a one-time attempt to set cruise too fast. If a switch is faulty, it will return.

Vehicle speed & idle control Generic OBD-II Low

What it means

P0574 sets when the cruise control system sees a vehicle speed above its allowed operating limit, or a brake/cruise switch input that doesn't add up. It's a safety interlock that disables cruise; the engine and brakes still work normally. Common triggers are a faulty brake-light switch or a short in the switch circuit — worth checking, since the same switch controls your brake lights.

Low

Can I keep driving? Safe to drive — the engine runs normally; only the cruise control is disabled.

Real-world scan data

Seen in

269

scans in the past year

Found in

<0.1%

of scans

0.1%

of scans that found faults

Appears alongside · share of P0574 scans

P1525in 63.2% of scans

P0575in 50.9% of scans

P2002in 45.0% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Cruise control won't engage or drops out
Check-engine light on
Brake-light switch may read as pressed when it isn't

Common causes

Most likely first

Faulty brake-light switch (falsely signalling brake input)Likely
Cruise control commanded above the system's allowed speedCommon
Short circuit or blown fuse in the cruise/brake switch circuitCommon
Faulty cruise control switchLess often
Failed cruise/PCM control module (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame and check the recorded vehicle speed; confirm whether cruise was engaged above its limit.
Test the brake-light switch adjustment and signal — a stuck-on brake input is a common trigger.
Inspect the cruise/brake switch wiring and fuse for shorts.
Replace the brake or cruise switch if out of spec. Clear and re-test at normal speeds.

FAQ

Quick answers

Is it safe to drive with P0574?+

Yes. The engine and brakes work normally — this only disables cruise control. Have the brake-light switch checked, since a faulty one can also affect brake lights.

Can I just clear P0574?+

You can, and it may stay off if it was a one-time attempt to set cruise too fast. If a switch is faulty, it will return.

Read & clear P0574 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX