Calibration Criteria

WARNING: This page is about a different car, the 2017 Cadillac ATS. 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 a suspension position sensor has been removed/reinstalled/replaced, or if the headlamp leveling control module has been serviced. The learn procedure will set the front and rear suspension position sensors home value. This value is used by the headlamp leveling control module to determine the movement of the front and rear suspension systems. The headlamp leveling control module compares the information from both suspension position sensors and adjusts the headlamp leveling as needed.