Toyota 2015 Prius Owner's Manual page 430

Coolant
The coolant level is satisfactory if it is between the full ("FULL" or "F")
and low ("LOW" or "L") lines on the reservoir when the hybrid system
is cold.
■
Engine coolant reservoir
1
Reservoir cap
2
"FULL" line
3
"LOW" line
If the level is on or below the
"LOW" line, add coolant up to
the "FULL" line. (P. 541)
■
Power control unit coolant reservoir
1
Reservoir cap
2
"F" line
3
"L" line
If the level is on or below the "L"
line, add coolant up to the "F"
line. (P. 541)
PRIUS v_OM_OM47887U_(U)
7-3. Do-it-yourself maintenance
I n f o r ma t i o n P r o v i d e d b y :
429
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