Set Condition
WARNING: This page is about a different car, the 2015 Fiat 500. However, it is still accessible from the selected car via links, so may be relevant.
The Battery Pack Control Module (BPCM) detects the difference between a single cell voltage and the average cell voltage has exceeded a calibrated voltage deviation threshold or a cell voltage balancing differential threshold has been exceeded. EVS lamp is illuminated but vehicle operation is not affected.