Lexus CT200h Owner's Manual page 505

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
Power control unit coolant reservoir
CT200h_OM_OM76067E_(EE)
4-3. Do-it-yourself maintenance
Reservoir cap
"FULL" line
"LOW" line
If the level is on or below the
"LOW" line, add coolant up to
the "FULL" line. (P. 657)
Reservoir cap
"FULL" line
"LOW" line
If the level is on or below the
"LOW" line, add coolant up to
the "FULL" line. (P. 657)
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