Battery Monitoring System Control Module Self Calibration
WARNING: This page is about a different variant/trim than selected.
The BMS control module periodically initiates a self-calibration routine. The self calibration requires that the startup battery is fully charged.
To self-calibrate, the BMS control module sends a signal to the BCM /GWM .
NOTE:
When the vehicle is only driven for short periods the charging process could take a number of days to complete.
When the startup battery is fully charged, the system then resumes normal charging control. The optimum level of charge is between 12.3V to 15.2V, depending on startup battery condition, temperature and loading.
The BMS control module also monitors the startup battery condition within Power Mode 0 (ignition OFF). When a low voltage condition is detected, the BMS control module can request the infotainment system is switched OFF to protect startup battery voltage.