Toyota 2005 Prius Owner's Manual page 117

Service reminder indicators and warning buzzers
If the indicator or buzzer comes on...
or
(red indicator and buzzer)
(a)
(yellow indicator)
(b)
(indicator and buzzer)
(c)
(d)
or
(e)
(f)
or
If any warning comes on, the hybrid system may not start by pushing the "POWER" switch. In that case, push it once again.
If parking brake is off, stop immediately and contact Toyota dealer.
Take vehicle to Toyota dealer. If red brake system warning light is also on, stop imme-
diately and contact Toyota dealer.
Fasten driver's seat belt.
Fasten front passenger's seat belt.
Take vehicle to Toyota dealer.
See multi−information display.
Take vehicle to Toyota dealer. If red brake system warning light is also on, stop imme-
diately and contact Toyota dealer.
Do this.
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