P0574 Code: Meaning, Symptoms, Causes & Fix

Overview

Code P0574 indicates a fault in Cruise Control System - Vehicle Speed Too High, typically within powertrain controls.

Symptoms

increased fuel use
reduced performance
rough operation in certain conditions

Common causes

Sensor output out of expected upper range affecting cruise control system - vehicle speed too high
Signal biased high from short-to-voltage
Connector pin damage/corrosion or harness stress near related components

How to diagnose P0574

Confirm P0574 and capture freeze-frame data with a professional scan tool.
Inspect wiring, connectors, and grounds related to cruise control system - vehicle speed too high for obvious defects.
Compare live data against expected upper threshold and verify reference voltage.
Check for related DTCs to identify the root-cause chain before replacing parts.
After repair, clear codes and confirm readiness monitors complete without recurrence.

Severity of code P0574

Moderate: This code is moderate severity: the vehicle may still operate, but fault progression can increase repair cost over time.

Can you drive with P0574?

Most vehicles can be driven short-term with P0574, but postpone heavy load/highway driving until repaired.

If the warning lamp is flashing or drivability/safety is affected, avoid driving and diagnose immediately.

How to fix it (step-by-step)

Repair obvious wiring/connector faults first to prevent repeat parts replacement.
Address the root fault mode (high) in the cruise control system - vehicle speed too high circuit/system.
Apply the required relearn/adaptation procedure if specified by service information.
Road-test and verify P0574 remains cleared under the conditions that originally set the code.

Fix options

Verify reference voltage and inspect wiring.
Perform relearn/adaptation if required.
Clear DTCs and verify with live data and completed drive cycle.

Typical repair cost

$200-$900

Common mistakes when diagnosing P0574

Replacing parts without verifying voltage, ground, and signal integrity first.
Ignoring related stored/pending codes that indicate upstream faults.
Skipping post-repair verification drive cycle and readiness checks.

P0574 in common vehicles

P0574 appears across makes such as Nissan, Hyundai, Kia, Volkswagen. Failure patterns differ by platform: wiring routes, software calibration, and component supplier revisions can change root cause.

Frequently asked questions

What causes P0574?

P0574 is commonly set by high faults affecting cruise control system - vehicle speed too high.

How much does it cost to fix P0574?

For P0574, repair costs are typically $200-$900 depending on exact root cause, labor rates, and part quality.

Can I clear P0574 without repair?

You can clear P0574 temporarily, but the code usually returns until the underlying fault is corrected.