Parking Assist System Operational Checks

The scan tool Parking Assist Disable History 1 - 8 data can be used to diagnose a malfunction within the parking assist system or an intermittent concern. The following is a brief description of potential causes which may aid in diagnosis. For each potential issue, perform an appropriate inspect of the component or system and refer to the specific service information subsection related to that system for further diagnosis:

• Disable by Switch - The parking assist system has been disabled through the parking assist switch.
• Disabled by Customization Menu - The parking assist system has been disabled through the vehicle personalization menu.
• Vehicle Speed Too High - The vehicle is travelling too fast in reverse at speeds of greater than 8 km/h (5 mph).
• Vehicle Speed Invalid - The vehicle is unable to determine the vehicle speed.
• Steering Angle Signal Invalid - The vehicle is unable to determine the steering angle.
• Front Attached Object Detected - An object has been determined to be attached to the front of the vehicle. Common items such as a brush guards, light bars, and license plates may cause this concern. Additionally, damage to the front of the vehicle or a misaligned sensor may cause this concern. If the vehicle is damaged in a manner that causes the sensor to detect the bumper itself, the parking assist control module will interpret this as an attached object and disable the system. Carefully inspect the bumper, bumper mounting surface, and sensor retainers before continuing with normal diagnosis. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 MPH).
• Rear Attached Object Detected - An object has been determined to be attached to the rear of the vehicle. Common items such as a hitch receiver, trailer, or a bicycle rack may cause this concern. Additionally, damage to the rear of the vehicle or a misaligned sensor may cause this concern. If the vehicle is damaged in a manner that causes the sensor to detect the bumper itself, the parking assist control module will interpret this as an attached object and disable the system. Carefully inspect the bumper, bumper mounting surface, and sensor retainers before continuing with normal diagnosis. After the detected cause has been addressed the vehicle must be driven at speed greater than 40 km/h (25 MPH).
• Front And Rear Attached Object Detected - An object has been determined to be attached to the front and rear of vehicle.
• Parking Assist Alarm Sensor Blocked - One of the following conditions may be present:
  • One or more of the sensors may be blocked by snow, mud, ice, or other debris. This might happen after going through a car wash in cold weather.
  • Silicone insulator surrounding sensor maybe missing, cut, or twisted.
  • Improperly installed sensor, sensor maybe be crooked due to a tight wire harness.
  • One or more of the sensors may be scratched or the paint maybe chipped.
  • Excessive paint thickness on a sensor may cause an excessive sensor ring time. When replacing or refinishing a sensor, do not apply an excessive amount of paint or clear coat.
• Haptic Seat Malfunction - A fault exists with the safety alert seat. Check for DTCs.
• Chime Malfunction - A fault exists with the vehicle chime. Check for DTCs.
• Parking Assist Switch Malfunction - A fault exists with the parking assist switch. Check for DTCs.
• Invalid Gear - The vehicle has determine a plausibility fault exists with the transmission range.
• Incorrect Power Mode - The vehicle is in an incorrect power mode for parking assist operation.