Lexus IS220d 2011 Owner's Manual

5
465
5-1. Essential information
When trouble arises
IS250/220d/200d_EE
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional, as soon
as possible.
Visible symptoms
Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is nor-
mal.)
Flat-looking tires or uneven tire wear
Engine coolant temperature gauge needle continually points
higher than normal
Audible symptoms
Changes in exhaust sound
Excessive tire squeal when cornering
Strange noises related to the suspension system
Pinging or other noises related to the engine
Operational symptoms
Engine missing, stumbling or running rough
Appreciable loss of power
Vehicle pulls heavily to one side when braking
Vehicle pulls heavily to one side when driving on a level
road

466
5-1. Essential information
IS250/220d/200d_EE
Fuel pump shut off system (IS250 only)
NOTICE
Before starting the engine
Inspect the ground under the vehicle.
If you find that fuel has leaked on to the ground, the fuel system has been
damaged and is in need of repair. Do not restart the engine.
To minimize the risk of fuel leakage when the engine stalls or an air-
bag inflates upon collision, the fuel pump shut off system stops sup-
plying fuel to the engine.
Follow the procedure below to restart the engine after the system
is activated.
Turn “ENGINE START STOP” switch to the ACCES-
SORY mode or OFF.
Restart the engine.
STEP1
STEP2

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467
When trouble arises
IS250/220d/200d_EE
5-2. Steps to take in an emergency
If a warning light turns on or a warning buzzer sounds...
Stop the vehicle immediately. Continuing to drive the vehicle may be danger-
ous.
The following warning indicates a possible problem in the brake
system. Immediately stop the vehicle in a safe place and contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
*: Parking brake engaged warning buzzer:
P. 4 7 7
Wa r n i n g
lightsWarning light/Details
Brake system warning light (warning buzzer)*
• Low brake fluid
• Malfunction in the brake booster system
This light also comes on when the parking brake is not
released. If the light turns off after the parking brake is
fully released the system is operating normally.
Calmly perform the following actions if any of the warning lights turn
on or flash. If a light turns on or flashes, but then turns off, this does
not necessarily indicate a malfunction in the system.

468
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Stop the vehicle immediately.
The following warning indicates the possibility of damage to the
vehicle that may lead to an accident. Immediately stop the vehicle
in a safe place and contact any authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
Have the vehicle inspected immediately.
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 any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional,
immediately.
Warning lightWarning light/Details
Charging system warning light
Indicates a malfunction in the vehicle’s charging system.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control system.
SRS warning light
Indicates a malfunction in:
• The SRS airbag system;
• The seat belt pretensioner system.
ABS warning light
Indicates a malfunction in:
•The ABS;
• The brake assist system.

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469
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Electric power steering warning light
Indicates a malfunction in the EPS (Electric Power Steer-
ing) system.
Pre-crash safety system warning light (if equipped)
Indicates a malfunction in the pre-crash safety system.
The warning light will operate as follows, even when the
system is not malfunctioning:
• The light will flash quickly when the system is operat-
ing.
(P. 230)
• The light will flash when the pre-crash braking is dis-
abled. (P. 231)
• The light will flash when the system cannot temporarily
be used. (P. 477)
Slip indicator
Indicates a malfunction in:
•The VSC system;
•The TRC system; or
• The hill-start assist control system
Fuel filter warning light (vehicles with a manual transmis-
sion)
Indicates that the amount of accumulated water in the
fuel filter has reached the specified level.
Warning lightWarning light/Details

470
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Follow the correction procedures.
After taking the specified steps to correct the suspected problem,
check that the warning light turns off.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or the
trunk is not fully closed.
Check that all doors and the
trunk are closed.
Low fuel level warning
light
Remaining fuel
(Approximately 11 L
[2.9 gal., 2.4 Imp. gal.] or
less)
Refuel the vehicle.
(On the
instrument
cluster)
Driver’s seat belt
reminder light
(warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.
Fasten the seat belt.
(On the center
panel)
Front passenger’s seat belt
reminder light
(warning buzzer)
*2
Warns the front passenger
to fasten his or her seat
belt.Fasten the seat belt.

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471
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Master warning light
A buzzer sounds and the
warning light comes on
and flashes to indicate that
the master warning sys-
tem has detected a mal-
function.
P. 4 7 4
Warning lightWarning light/DetailsCorrection procedure

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5-2. Steps to take in an emergency
IS250/220d/200d_EE
*1:Open door warning buzzer:
P. 477
*2:Driver's and front passenger’s seat belt reminders:
The driver’s and front passenger’s seat belt buzzer sounds to alert the
driver and front passenger that his or her seat belt is not fastened. The
buzzer sounds for 30 seconds after the vehicle has reached a speed of at
least 20 km/h (12 mph). Then, if the seat belt is still unfastened, the
buzzer will sound in a different tone for 90 more seconds.
If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes com-
pletely empty. If the fuel tank is empty, refuel the vehicle immediately. The
malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
Electric power steering warning light
When the battery is low or when the voltage drops temporarily, the electric
power steering warning light may come on.
Front passenger detection sensor and passenger seat belt reminder and
warning buzzer
If luggage is placed on the front passenger seat, the front passenger
detection sensor may cause the warning light to flash and the warning
buzzer to sound, even if a passenger is not sitting in the seat.
If a cushion is placed on the seat, the sensor may not detect a passenger,
and the warning light may not operate properly.

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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.

474
5-2. Steps to take in an emergency
IS250/220d/200d_EE
If a warning message is displayed
If a warning is shown on the multi-information display, stay calm and
perform the following actions:
Left-hand drive vehicles
Master warning light
The master warning light also
comes on or flashes in order
to indicate that a message is
currently being displayed on
the multi-information dis-
play.
Multi-information display
Right-hand drive vehicles
Master warning light
The master warning light also
comes on or flashes in order
to indicate that a message is
currently being displayed on
the multi-information dis-
play.
Multi-information display
If any of the warning lights turns on again after performing the
following actions, contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.