Toyota 2003 Prius Owner's Manual page 173

NOTICE
Continued driving with the light on
could result in the overheating of hy-
brid 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:
D
The hybrid system is on.
D
The parking brake is applied.
D
The selector lever is in a position other
than "P".
98
CHECKING SERVICE REMINDER INDICA-
TORS (except the low fuel level indica-
tor 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 ex-
cept 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 sec-
onds 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 warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.