Lexus LS460 Owner's Manual page 547

The coolant level is satisfactory if
4
it is between the "FULL" and
"LOW" lines on the reservoir.
Reservoir
1
"FULL"
2
"LOW"
3
Add coolant if necessary.
5
(→P. 453)
Water can be used in an emergency if
coolant is unavailable.
LS460/LS460L_U (OM50G04U)
7-2. Steps to take in an emergency
547
7