Toyota Hiace Owner's Manual page 62

Service reminder indicators and warning buzzer
If the indicator or buzzer comes on...
(a)
(b)
(c)
(d)
(e)
Low fuel level warning light
(f)
(indicator and buzzer)
(g)
If parking brake is off, stop immediately and contact Toyota dealer.
Stop and check.
Stop and check.
Add engine oil.
Fill up tank.
Drain water.
Take vehicle to Toyota dealer.
Do this.
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