2013 Toyota Sienna Navigation Manual - Page 413

REAR VIEW MONITOR SYSTEM - If the message "System initializing" will be displayed If the message "System initializing" will be displayed on the screen, the help screen is touched. Make a appears when correction using the following method in accordance with the display. When the vehicle is stopped, turn the steering wheel all the way to the left, then all the way to the right. (It does not matter in which direction - right or left - you turn first.) When the screen returns to the original display, correction is complete. If the above screen remains, have the vehicle inspected at your Toyota dealer. 249