2003 Toyota Prius Owners Manual - Page 105

NOTICE Continued driving with the light on could result in the overheating of hybrid system. (n) Key Reminder Buzzer This buzzer reminds you to remove the key when you open the driver's door with the ignition key in the "ACC" or "LOCK" position. (o) Shift position reminder buzzer This buzzer will sound if the driver's door is opened in the following conditions: CHECKING SERVICE REMINDER INDICATORS (except the low fuel level indicator light) 1. Apply the parking brake. 2. Open one of the doors. The open door warning light should come on. 3. Close the door. The open door warning light should go off. 4. Turn the ignition key to "ACC". The SRS warning light should come on. It goes off after about 6 seconds. 5. Turn the ignition key to "START". At this time, all the bulbs are checked in self-diagnosis mode. All the service reminder indicators except the open door warning light and SRS warning light should come on. The "ABS" warning light goes off after a few seconds. There may be the case that the "ABS" warning light stays on for about 60 seconds after the ignition key is turned to the "ON" position. It is normal if it goes out after a while. If any service reminder indicator or warning buzzer does not function as described above, have it checked by your Toyota dealer as soon as possible. D The hybrid system is on. D The parking brake is applied. D The selector lever is in a position other than "P". 98