wheel Lexus IS220d 2012 Repair Manual

427
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
CAUTION
Proper inflation is critical to save tire performance
Keep your tires properly inflated. Otherwise, the following conditions may
occur and result in an accident causing death or serious injury.
Excessive wear
Uneven wear
Poor handling
Possibility of blowouts resulting from overheated tires
Poor sealing of the tire bead
Wheel deformation and/or tire separation
A greater possibility of tire damage from road hazards
NOTICE
When inspecting and adjusting tire pressure
Be sure to reinstall the tire valve caps.
Without the valve caps, dirt or moisture could get into the valve and cause
air leakage, which could result in an accident. If the caps have been lost,
replace them as soon as possible.

428
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
Wheels
If a wheel is bent, cracked or heavily corroded, it should be replaced.
Otherwise, the tire may separate from the wheel or cause loss of han-
dling control.
Wheel selection
When replacing wheels, care should be taken to ensure that
they are equivalent to those removed in load capacity, diame-
ter, rim width, and inset
*.
Replacement wheels are available at any authorized Lexus
dealer or repairer, or another duly qualified and equipped pro-
fessional.
*: Conventionally referred to as “offset”.
Lexus does not recommend using:
Wheels of different sizes or types
Used wheels
Bent wheels that have been straightened
Aluminum wheel precautions
Use only Lexus wheel nuts and wrenches designed for use
with your aluminum wheels.
When rotating, repairing or changing your tires, check that
the wheel nuts are still tight after driving 1600 km (1000
miles).
Be careful not to damage the aluminum wheels when using
tire chains.

429
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
CAUTION
When replacing wheels
Do not use wheels that are a different size from those recommended in the
Owner’s Manual, as this may result in loss of handling control.
Never use an inner tube in a leaking wheel which is designed for a tube-
less tire. Doing so may result in an accident, causing serious injury or
death.

5
459
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If your vehicle needs to be towed
Before towing
The following may indicate a problem with your transmission.
Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional, before towing.
The engine is running, but the vehicle will not move.
The vehicle makes an abnormal sound.
Emergency towing
If a tow truck is not available, in an emergency your vehicle may
be temporarily towed using a cable or chain secured to the emer-
gency towing eyelet(s). This should only be attempted on hard,
surfaced roads for short distances at low speeds.
A driver must be in the vehicle to steer and operate the brakes. The
vehicle’s wheels, drive train, axles, steering and brakes must be in
good condition.
If towing is necessary, we recommend having your vehicle towed by
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional, such as a commercial towing service, using a
lift-type truck or a flat bed truck.
Use a safety chain system for all towing, and abide by all state/provin-
cial and local laws.
If towing from the rear, the vehicle's front wheels and axles must be in
good condition. (P. 463)
If they are damaged, use a towing dolly or flat bed truck.

460
5-1. Essential information
IS250/220d/200d_EETowing eyelets
Emergency towing procedure
Release the parking brake.
Shift the shift lever to N.
Put the “ENGINE START STOP” switch in ACCESSORY mode
or IGNITION ON mode.
CAUTION
Caution while towing
Use extreme caution when towing the vehicle.
Avoid sudden starts or erratic driving maneuvers which place excessive
stress on the emergency towing eyelets and the cables or chains. Always
be cautious of the surroundings and other vehicles while towing.
If the engine is not running, the power assist for the brakes and steering
will not function, making steering and braking more difficult.
NOTICE
To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.
This may cause serious damage to the transmission.
When towing a vehicle without using a towing dolly
(vehicles with a manual transmission)
The “ENGINE START STOP” switch must not be OFF.
STEP1
STEP2
STEP3

5
461
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
Installing towing eyelets
Remove the eyelet cover using
a flathead screwdriver.
To protect the bodywork, place
a rag between the screwdriver
and the vehicle body, as shown
in the illustration.
Insert the towing eyelet into the
hole and tighten partially by
hand.
Tighten down the towing eyelet
securely using a wheel nut
wrench.
STEP1
STEP2
STEP3
Location of the emergency towing eyelet
P. 4 8 5

5
463
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
Towing with a wheel lift-type truck
From the front
Vehicles with an automatic
transmission: Use a towing
dolly under the rear wheels.
Vehicles with a manual trans-
mission: We recommend to use
a towing dolly under the rear
wheels.
When not using a towing dolly,
release the parking brake and
shift the shift lever to N.
From the rear
Switch to ACCESSORY mode
so that the steering wheel is
unlocked.
NOTICE
To prevent causing serious damage to the transmission
(vehicles with an automatic transmission)
Never tow this vehicle from the front with the rear wheels on the ground.

464
5-1. Essential information
IS250/220d/200d_EE
Using a flat bed truck
If your Lexus is transported by
a flat bed truck, it should be
tied down at the locations
shown in the illustration.
If you use chains or cables to tie
down your vehicle, the angles
shaded in black must be 45.
Do not overly tighten the tie
downs or the vehicle may be
damaged.
NOTICE
To prevent damaging the vehicle
Do not tow the vehicle from the rear with the “ENGINE START STOP”
switch OFF.
The steering lock mechanism is not strong enough to hold the front wheels
straight.
When raising the vehicle, ensure adequate ground clearance for towing at
the opposite end of the raised vehicle. Without adequate clearance, the
vehicle could be damaged while being towed from the rear.

5
473
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
CAUTION
When the electric power steering warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, firmly
hold and operate it using more force than usual.
NOTICE
If the fuel filter warning light comes on (vehicles with a manual transmis-
sion)
Never drive the vehicle with the warning light on. Continued driving with
water accumulated in the fuel filter will damage the fuel injection pump.

5
485
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE

(Flashing)
Indicates that
the steering lock
has not released
within 3 seconds
of pressing the
“ENGINE
START STOP”
switch.Press the
“ENGINE
START STOP”
switch again
while turning
the steering
wheel with the
brake pedal
depressed.
Once
(Vehicles with an
automatic transmis-
sion)
Indicates that
the electronic
key does not
operate properly.
P. 5 2 1

(Vehicles with an
automatic transmis-
sion)
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure