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DTC codes / GM codes / P1567

P1567 · GMCruise Control System Active Braking Control Active

P1567 on GM vehicles indicates that the cruise control system has requested or is actively applying braking control, often through the electronic brake control module (EBCM) or powertrain control module (PCM). The computer detects an active braking signal while cruise control is engaged, which may be part of normal adaptive cruise control operation or a sign of a fault in the brake switch, wheel speed sensors, or communication between modules.

SystemPowertrain
Code typeGM specific
SeverityMedium
Fix difficultyIntermediate
AreaVehicle speed, idle control and auxiliary inputs

Symptoms you may notice

  • Cruise control may disengage unexpectedly or fail to engage at all
  • The cruise control indicator light may flash or stay illuminated
  • The brake pedal may feel different or the vehicle may exhibit unintended braking
  • A warning message such as 'Cruise Control Service' or 'Stabilitrak' may appear
  • Often no symptoms besides the warning light, especially if the code is stored but not active
  • The vehicle may enter limp mode or reduce power in some cases

Common causes, most likely first

  1. Faulty brake pedal position sensor or brake switch, sending incorrect signals
  2. Malfunctioning wheel speed sensor or dirty sensor ring, causing false activation of braking control
  3. Wiring issues such as chafed or corroded connectors in the cruise control or brake circuits
  4. Failed electronic brake control module (EBCM) or powertrain control module (PCM) software glitch
  5. Sticking or faulty cruise control switch on the steering wheel
  6. Low brake fluid level or hydraulic issue triggering the brake control system
  7. Aftermarket accessories or improper modifications interfering with the cruise control system

How to diagnose and fix it

  1. Use a scan tool to read all codes and check for related ABS or body control module codes
  2. Inspect the brake pedal position sensor and brake switch for proper adjustment and operation
  3. Check wheel speed sensors and sensor rings for debris, damage, or loose connections
  4. Verify battery voltage and ground connections to the EBCM and PCM
  5. Perform a visual inspection of wiring and connectors in the cruise control and brake systems
  6. Reprogram or update the EBCM/PCM software if applicable
  7. Replace faulty components such as the brake switch or wheel speed sensor as needed

Cruise Control Braking Signal Traps

  • A common cause is a misadjusted brake pedal position sensor that falsely signals braking, so always check sensor calibration before replacing modules.
  • The code can be set by a simple dirty wheel speed sensor ring, which is often overlooked during diagnosis.
  • P1567 may appear after battery replacement or low voltage events, requiring a relearn procedure for the steering angle sensor or brake pedal sensor.
  • Do not assume the EBCM is faulty; check for aftermarket wiring or accessories that may interfere with the cruise control circuit.
  • This code often accompanies ABS or traction control codes, so diagnosing those first can resolve the cruise control issue.

Can I keep driving with P1567?

If the warning light is on but the vehicle drives normally, you can continue driving with caution, but avoid using cruise control until the fault is repaired. If you experience unintended braking or loss of power, pull over safely and seek professional diagnosis immediately.

Tools that help

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Guidance is general and written for GM vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.

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