Calibration Criteria

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Remove any excess weight and do not sit in the vehicle during the headlamp leveling sensor learn procedure. Any additional weight will cause the calibration of the front and rear suspension position sensors to be inaccurate and affect the operation of the headlamp leveling system.

The headlamp leveling sensor learn procedure must be performed after the B152F Front Suspension Automatic Forward Lighting Leveling Position Sensor or B152R Rear Suspension Automatic Forward Lighting Leveling Position Sensor has been removed/reinstalled/replaced, if the E13LA Front Headlamp - Left has been replaced or if the K9 Body Control Module has been serviced. The learn procedure will set the sensors home value. This value is received by the E13LA Front Headlamp - Left and communicated to the body control module. The K9 Body Control Module compares the information from both sensors and sends a serial data message to the E13LA Front Headlamp - Left, from there the E13LA Front Headlamp - Left adjusts the M29L Headlamp Leveling Actuator - Left and M29 Headlamp Leveling Actuator - Right to the desired headlamp leveling positions.