2006 Lexus IS250 steering

5
When trouble arises
323
5-1. Essential information
Switch to ACC mode so that the
steering wheel is unlocked.
From the rear (2WD models) Use a towing dolly under the front
wheel.
From the rear (AWD models)
NOTICE
■To prevent damaging the vehicle
●Do not tow the vehicle with the engine switch OFF.
The steering lock mechanism is not st rong enough to hold the front wheel
straight.
●When raising the vehicle, ensure adequate ground clearance for towing at the
opposite end of the raised vehicle. Wi thout adequate clearance, the vehicle
could be damaged while being towed.

5
When trouble arises
327
5-1. Essential information
Event data recorder
In a crash or a near car crash eventThe EDR may record some or all of the following information.
● Engine speed
● Whether the brake pedal was applied or not
● Vehicle speed
● To what extent the accelerator pedal was depressed
● Position of the transmission shift lever
● Whether the driver and front passenger wore seat belts or not
● Driver's seat position
● SRS airbag deployment data
● SRS airbag system diagnostic data
If your vehicles is equipped with a vehicle stability control (VSC) system
Your Lexus’ Electronic Control U nit (ECU) may contain another EDR.
There are a variety of driving situati ons which include activating the VSC
under which the VSC EDR will reco rd certain information. The VSC
EDR may record some or all of the following information:
● Behavior of the vehicle
● Steering wheel angle
● Vehicle speed
Your vehicle has computers that monitor and control certain aspects of
your vehicle. These computers assist in driving and maintaining optimal
vehicle performance.
Besides storing data usef ul for troubleshooting, there is an event data
recorder (EDR) that records data in a crash or a near car crash event.

5
When trouble arises
331
5-2. Steps to take in an emergency
Have the malfunction repaired immediately.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system.
Electric power steering system warning light
• Indicates a malfunction in the EPS (Electric Power Steering) system.
Pre-collision system warning light (if equipped)
• Indicates a malfunction in the pre-collision system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or a
trunk is not fully closed.
Check that all doors and the
trunk are closed.
Low fuel level warning lightRemaining fuel
(Approximately 2.9 gal. [11 L,
2.4 Imp.gal.] or less)
Refuel the vehicle.
Driver’s seat belt reminder
light (warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.

5
When trouble arises
335
5-2. Steps to take in an emergency
Have the vehicle inspected by your Lexus dealer immediately.A buzzer sounds and a warning message is shown on the multi-informa-
tion display. Failing to investigate the cause of the following warnings may
lead to the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Lexus dealer immediately.
Wa r n i n g m e s s a g eDetails
(If equipped)
Indicates a malfunction in the AWD system.
(Flashing and then
continuously on)
Indicates a malfunction in the tire pressure warning
system. ( P. 2 76 )
(Flashing)
Indicates a malfunction in the steering lock system.

5
When trouble arises
347
5-2. Steps to take in an emergency
InteriorbuzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(For vehicles with an
automatic transmission)
Indicates that a
door has been
opened or closed
and the engine
switch has been
switched twice to
ACC mode from
OFF.
Press the engine
switch while
applying the
brakes.
Once
(For vehicles with a
manual transmission)
Indicates that a
door has been
opened or closed
and the engine
switch has been
switched twice to
ACC mode from
OFF.
Press the engine
switch while
depressing the
clutch pedal.
Once
(Flashing)
Indicates that the
steering lock has
not released
within 3 seconds
of pressing the
engine switch.Press the engine
switch again while
turning the steer-
ing wheel with the
brake pedal
depressed.

356
5-2. Steps to take in an emergency
If the engine will not start
If the engine will not start, even though correct starting procedures are
being followed (
P. 89), consider each of the following points.
■The engine will not start even when the starter motor operates
normally.
One of the following may be the cause of the problem.
● There may not be sufficient fuel in the vehicle’s tank.
Add fuel to the vehicle.
● The engine may be flooded.
Try to restart the engine once more following correct starting
procedures ( P. 89).
● There may be a malfunction in the engine immobilizer system.
( P. 50)
■ The starter motor turns over slow ly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
One of the following may be the cause of the problem.
● The battery may be discharged. ( P. 362)
● The battery terminal connections may be loose or corroded.
■ The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
One of the following may be the cause of the problem.
● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 362)
● There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if
repair procedures are unknown.

378
6-1. Specifications
Steering
Tires and wheelsTy p e A
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e205/55R16 89W, T125/70D17 98M
(spare)
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Driving under normal conditions Front tires:
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)
Rear tires:
38 psi (260 kPa, 2.6 kgf/cm
2 or bar)
Driving at high speeds above 100 mph (160
km/h) (in countries where such speeds are per-
mitted by law) Add 5.8 psi (40 kPa, 0.4 kgf/cm
2 or bar) to
the front tires and rear tires. Never exceed the
maximum cold tire inflation pressure indicated
on the tire sidewall.
Spare tire inflation pressure
(Recommended cold tire inflation
pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar, )
Wheel size16  7JJ, 17  4T (spare)
Wheel nut torque10.5 kgf•m (103 N•m, 76 ft•lbf)

392
6-1. Specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp ed, air conditioning and
additional weight optional engine
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows