Lexus ES350 Manual page 690

Coolant
The coolant level is satisfactory if it is between the "FULL" and "LOW"
lines on the reservoir when the engine <hybrid system> is cold.
Engine coolant reservoir
■
Reservoir cap
1
"FULL" line
2
"LOW" line
3
If the level is on or below the
"LOW" line, add coolant up to the
"FULL" line. (P. 821, 824)
Power control unit coolant reservoir (hybrid vehicles)
■
Reservoir cap
1
"FULL" line
2
"LOW" line
3
If the level is on or below the
"LOW" line, add coolant up to the
"FULL" line. (P. 824)
ES350_300h_OM_OM33A60U_(U)
6-3. Do-it-yourself maintenance
689
6