IS350 AWD/IS350/IS300- Page 294

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6-3. Do-it-yourself maintenance

■

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.

Check the battery as follows.

■

Battery exterior

Make sure that the battery terminals 
are not corroded and that there are no 
loose connections, cracks, or loose 
clamps.

Terminals
Hold-down clamp

■

Before recharging

When recharging, the battery produces 

hydrogen gas which is flammable and 

explosive. Therefore, observe the following 

before recharging:

●

If recharging with the battery installed on 

the vehicle, be sure to disconnect the 

ground cable.

●

Make sure the power switch on the char-

ger is off when connecting and discon-

necting the charger cables to the battery.

Checking and adding the brake 
fluid

WARNING

■

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.

NOTICE

■

If the fluid level is low or high

It is normal for the brake fluid level to go 

down slightly as the brake pads wear out 

or when the fluid level in the accumulator 

is high.

If the reservoir needs frequent refilling, 

there may be a serious problem.

Battery

A

B