2003 Toyota Prius Owners Manual - Page 100

If the indicator or buzzer comes on... Do this. Stop and check. (h) (i) or Take vehicle to Toyota dealer. If brake system warning light is also on, stop immediately and contact Toyota dealer. (j) Take vehicle to Toyota dealer immediately. (k) Close all doors. (l) Fill up tank. (m) (in red) Stop and check. (n) Key reminder buzzer Remove key. (o) Shift position reminder buzzer Put the selector lever in "P" position. 93