Long-term storage of vehicles with hybrid batteries

To help minimize degradation of the hybrid battery if the vehicle is not driven for a prolonged period (longer than 1 month) the hybrid battery charge level should be kept at approx. 25% according to the gauge in the instrument panel.
Do as follows:
P5-15w26- State of Charging in the driver display
If the hybrid battery charge level is high, drive the vehicle until the charge level is approximately 25%. If the charge level is low, charge the battery until the level reaches approximately 25%.
If the vehicle is not driven for more than 6 months or the hybrid battery's charge level is noticeably below the 25% mark, charge the battery to about 25% to help compensate for the natural battery discharge that occurs in long-term storage. Regularly check the charge level using the gauge in the instrument display.

 Note

Store the vehicle in as cool a location as possible to minimize battery aging during long-term storage. In the summer, park the vehicle indoors or in a shady location, whichever is cooler.