OPERATION OF INSTRUMENTS AND CONTROLS - Gauges, Meters and Service reminder indicators -> Coolant temperature indicator and warning light for Your Toyota Prius 4 Door First Generation (1997-2003)

Coolant temperature indicator  
and warning lights  
Low coolant temperature  
indicator light in blue  
High coolant temperature  
warning light in red  
At the first blinking of the light, the master  
warning light in the instrument cluster  
comes on and the message appears on  
the multiinformation display to remind the  
driver to fill fuel.  
The fuel system malfunctions in the fol-  
lowing cases, so contact your Toyota  
dealer.  
The indicator and warning lights indi-  
cate the coolant temperature when the  
ignition switch is on. The hybrid sys-  
tem operating temperature will vary  
with changes in weather and hybrid  
system load.  
D All the segments blink.  
D The “E” mark and the segments indi-  
cating remaining fuel blink.  
The red high coolant temperature warning  
light will come on when the ignition key  
is turned to the “ON” position. After a few  
seconds, the light will go off.  
If your coolant temperature is cool with  
the ignition switch on, the blue low cool-  
ant temperature indicator light comes on.  
If it keeps lighting on with the hybrid sys-  
tem fully warmed, contact your Toyota  
dealer as soon as possible to service the  
vehicle.  
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