300
6-3. Do-it-yourself maintenance
Check the radiator, condenser and
intercooler radiator (if equipped) and
clear away any foreign objects.
If any of the above parts are extremely
dirty or you are not sure of their condi-
tion, have your vehicle inspected by
your Lexus dealer.
■ Checking fluid level
The brake fluid level should be
between the “MAX” and “MIN” lines
on the tank.
■ Adding fluid
Make sure to check the fluid type and
prepare the necessary item.
Fluid type
SAE J1703 or FMVSS No.116 DOT 3
brake fluid
Item
Clean funnel
■ Brake fluid can absorb moisture from
the air
Excess moisture in the brake fluid can cause
a dangerous loss of braking efficiency. Use
only newly opened brake fluid.
■ When the engine is hot
Do not remove the engine coolant reser-
voir cap, intercooler coolant reservoir
cap (IS300), or coolant inlet cap.
(P.367)
The cooling system may be under pres-
sure and may spray hot coolant if the cap
is removed, causing serious injuries, such
as burns.
■ When adding coolant
Coolant is neither plain water nor
straight antifreeze. The correct mixture
of water and antifreeze must be used to
provide proper lubrication, corrosion
protection and cooling. Be sure to read
the antifreeze or coolant label.
■ If you spill coolant
Be sure to wash it off with water to pre-
vent it from damaging parts or paint.
Checking the radiator, con-
denser and intercooler radiator
(if equipped)
■ When the engine is hot
Do not touch the radiator, condenser or
intercooler radiator (if equipped) as they
may be hot and cause serious injuries,
such as burns.
Checking and adding the brake
fluid
■ When filling the reservoir
Take care as brake fluid can harm your
hands and eyes and damage painted sur-
faces.
If fluid gets on your hands or in your eyes,
flush the affected area with clean water
immediately.
If you still experience discomfort, see a
doctor.
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