Toyota RAV4 2003 Manual page 100

If the indicator or buzzer comes on...
(h)
or
(i)
(j)
(k)
(l)
(m) Key reminder buzzer
(n) Light reminder buzzer
94
'03 Rav4_U (L/O 0208)
Take vehicle to Toyota dealer.
If brake system warning light is also on, stop immediately and contact Toyota dealer.
Close all side doors and back door.
Stop and check.
Take vehicle to Toyota dealer immediately.
Add washer fluid.
Remove key.
Turn off lights.
2003 RAV4 from Aug. '02 Prod. (OM42517U)
Do this.