2012 Toyota Prius Owners Manual - Page 814

5-2. Steps to take in an emergency Warning message Details Correction procedure Restart the LKA. In case of overheating, the system will become functional once the system cools down. Indicates that the LKA is not currently functional. (If equipped) Alerts the driver that the vehicle is out of the lanes (while the LKA system is operating). A buzzer also sounds. The lane markings and/or the steering wheel marking flash. At the same time, will appear on the head-up display (the image flashes). The hybrid system has overheated. A buzzer also sounds. This message may be displayed when driving under severe operating conditions. (For example, when driving up a long steep hill.) Check around the vehicle and back to inside of the lane markings. Stop and check. (→P. 549) The hybrid battery (traction battery) is low. A buzzer also sounds. (Flashes) When stopping the vehicle for a long period of time, shift the shift position to P. The hybrid battery (traction battery) cannot be charged with the shift position in N. 514