Lexus LS 600h L 2012 Owner's Manual page 450

Coolant
The coolant level is satisfactory if it is between the "FULL" and "LOW"
lines on the reservoir when the hybrid system is cold.
Engine coolant reservoir
4-3. Do-it-yourself maintenance
Reservoir cap
"FULL"
"LOW"
If the level is on or below the
"LOW" line, add coolant up to the
"FULL" line. (→P. 539)
4
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