Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's smart cruise control system is acting up and not working properly all the time.
This code indicates that the Adaptive Cruise Control system has detected irregular activity, which may cause it to function intermittently.
The P167A code is triggered when the Adaptive Cruise Control (ACC) system detects inconsistent signals or malfunctions in its operation. This can be due to sensor issues, wiring problems, or software glitches within the ACC system.
• Adaptive Cruise Control not engaging
• ACC system warning light on the dashboard
• Inconsistent speed control while using ACC
• Faulty radar or camera sensor
• Wiring issues or loose connections
• Software malfunction in the ACC module
ACC: Adaptive Cruise Control, a system that automatically adjusts the vehicle's speed to maintain a safe distance from vehicles ahead.
OBD-II: On-Board Diagnostics, a standardized system for self-diagnostics and reporting in vehicles.
• Check for any ACC-related warning lights on the dashboard.
• Inspect the radar and camera sensors for any physical damage or obstructions.
• Use a diagnostic scanner to check for additional error codes and live data.
• Clean or replace the radar and camera sensors if necessary.
• Repair or replace any damaged wiring or connectors.
• Update or reprogram the ACC module software if a glitch is detected.
• OBD-II diagnostic scanner
• Multimeter
• Basic hand tools
$200 - $600
Moderate
• Vehicle 1
• Vehicle 2
• Vehicle 3
• Regularly clean sensors and keep them free of obstructions.
• Perform routine checks on wiring and connectors.
• Keep the ACC system software updated.
Sensor Issue
• Avoid using ACC until the issue is resolved.
• Drive with caution and maintain manual control of speed.
Check with the vehicle manufacturer for warranty coverage on the ACC system.
The P167A code has been associated with vehicles equipped with advanced driver-assistance systems, particularly those using radar and camera sensors for cruise control.
Moderate – The vehicle can still be driven, but the ACC system may not function properly, which could affect driving comfort and safety.
Ensure all repairs comply with local laws and safety regulations. Improper repairs can lead to safety hazards.
• Vehicle must be in motion to test ACC functionality.
• Clear weather conditions are ideal for sensor accuracy.
The ACC radar sensor is typically located in the front grille or bumper, while the camera sensor is often mounted near the rearview mirror inside the vehicle.
Q: Can I drive with the P167A code?
A: Yes, but the Adaptive Cruise Control may not work properly, so it's best to drive manually until it's fixed.
Q: What happens if I ignore this code?
A: Ignoring the code may lead to inconsistent cruise control performance and could affect driving safety.
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