Page 401 of 482

ENGINE
376If the coolant level drops within a short time after replenishing,
there may be a leak in the system. Visually check the radiator,
hoses, engine coolant filler cap, radiator cap and drain cock
and water pump.
If you can find no leak, have your Lexus dealer test the cap
pressure and check for leaks in the cooling system.
CAUTION
To prevent burning yourself, do not remove the radiator
cap when the engine is hot.
Coolant type selection
Use of improper coolants may damage your engine cooling
system.
Only use Toyota Super Long Life Coolantº or similar high
quality ethylene glycol based non- silicate, non- amine,
non- nitrite, and non- borate coolant with long- life hybrid
organic acid technology. (Coolant with long-life hybrid organic
acid technology consists of the combination of low phosphates
and organic acids.)
Toyota Super Long Life Coolantº is pre- mixed with 50%
coolant and 50% deionized water. This coolant provides
protection down to about -35C (-31F).
NOTICE
Do not use plain water alone.
Page 402 of 482
ENGINE
377 Lexus recommends Toyota Super Long Life Coolantº which
has been tested to ensure that it will not cause corrosion nor
result in malfunction of your engine coolant system with proper
usage. Toyota Super Long Life Coolantº is formulated with
long- life hybrid organic acid technology and has been
specifically designed to avoid engine cooling system
malfunction on Lexus vehicles.
Toyota Super Long Life Coolantº is pre- mixed with 50%
coolant and 50% distilled water. This coolant provides
protection down to about -35C (-31F).
Please contact your Lexus dealer for further details.
CHECKING THE RADIATOR AND
CONDENSER
If either of the above parts are extremely dirty or you are not
sure of their condition, take your vehicle to a Lexus dealer.
CAUTION
To prevent burning yourself, be careful not to touch the
radiator, condenser or intercooler when the engine is
hot.
NOTICE
To prevent damage to the radiator and condenser, do
not perform the work by yourself.
Page 403 of 482
ENGINE
378
SPARK PLUGSYour engine is fitted with iridium-tipped spark plugs.
NOTICE
Use only iridium-tipped spark plugs and do not adjust
gaps for your engine performance and smooth
drivability.
Page 404 of 482
Page 405 of 482

SECTION 6 ± 3
380
SERVICE PROCEDURES AND
SPECIFICATIONS
Chassis
Specifications381 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking brake fluid385 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking power steering fluid387 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking tire inflation pressure389 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire information392 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires400 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rotating tires401 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking and replacing tires402 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installing snow tires and chains404 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Replacing wheels406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Aluminum wheel precautions407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis408 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Page 406 of 482
CHASSIS
381
SPECIFICATIONS
Ð AUTOMATIC TRANSAXLE
Fluid capacity
Drain and refill
3.5 L (3.7 qt., 3.1 lmp. qt.)
Fluid typeToyota Genuine ATF Type T-IV*
*: Change automatic transmission fluid only as necessary.
Generally, it is necessary to change automatic transmission
fluid only if your vehicle is driven under one of the Special
Operating Conditions listed in your Owner's Manual
Supplement/Scheduled Maintenanceº. When changing the
automatic transmission fluid, use only Toyota Genuine ATF
Type T-IVº (ATF JWS3309 or NWS6500) to aid in assuring
optimum transaxle performance.
Page 407 of 482
CHASSIS
382
NOTICE
Using automatic transmission fluid other than Toyota
Genuine ATF Type T-IVº may cause deterioration in
shift quality, locking up of your transmission
accompanied by vibration, and ultimately damage the
automatic transmission of your vehicle.
Please contact your Lexus dealer for further details.
Page 408 of 482
CHASSIS
383 Ð BRAKES
Pedal clearance
Fixed type
Adjustable type (in frontmost position)
70 mm (2.8 in.) Min. *1
59 mm (2.3 in.) Min. *1
Pedal free play
Fixed type
Adjustable type (in frontmost position)1 Ð 6 mm (0.04 Ð 0.24 in.)
1 Ð 8 mm (0.04 Ð 0.31 in.)
Brake pad wear limit1.0 mm (0.04 in.)
Parking brake lining wear limit1.0 mm (0.04 in.)
Parking brake adjustment3 Ð 6 clicks *2
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3
*1: Minimum pedal clearance when depressed with the force of 490 N (50 kgf, 110 lbf) with the engine running
*2: Parking brake adjustment when depressed with the force of 294 N (30 kgf, 66 lbf)
Ð STEERING
Wheel free play
Less than 30 mm (1.2 in.)
Power steering fluid typeAutomatic transmission fluid DEXRONII or III