2011 Lexus IS220d air

461
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
CAUTION
Replacing light bulbs
Turn off the headlights. Do not attempt to replace the bulb immediately
after turning off the headlights.
The bulbs become very hot and may cause burns.
Do not touch the glass portion of the light bulb with bare hands. Hold the
bulb by the plastic or metal portion.
If the bulb is scratched or dropped it may blow out or crack.
Fully install light bulbs and any parts used to secure them. Failing to do so
may result in heat damage, fire, or water entering the headlight unit. This
may damage the headlights or cause condensation to build up on the lens.
Discharge headlights (if equipped)
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional, before replacing discharge headlights (includ-
ing light bulbs).
Do not touch the high-intensity discharge headlight’s high voltage socket
when the headlights are turned on.
An extremely high voltage of 20000 V will be discharged and could result
in serious injury or death by electric shock.
Do not attempt to take apart or repair the low beam discharge headlight
bulbs, connectors, power supply circuits, or related components.
Doing so could result in electric shock and serious injury or death.
To prevent damage or fire
Make sure bulbs are fully seated and locked.

5When trouble arises
457
5-1. Essential information
Emergency flashers .......... 458
If your vehicle needs to
be towed ......................... 459
If you think something is
wrong ............................. 465
Fuel pump shut off
system ............................ 466
5-2. Steps to take in an
emergency
If a warning light turns
on or a warning buzzer
sounds... ......................... 467
If a warning message is
displayed ........................ 473
If you have a flat tire
(vehicles with a spare
tire)................................. 485
If you have a flat tire
(vehicles with an
emergency tire
puncture repair kit) ........ 497
If the engine will not start 512
If the shift lever cannot
be shifted from P............ 514
If you lose your keys ........ 515If the electronic key
does not operate
properly.......................... 516
If the vehicle battery is
discharged ...................... 521
If your vehicle overheats . 525
If you run out of fuel
and the engine stalls....... 528
If the vehicle becomes
stuck............................... 529
If your vehicle has to
be stopped in an
emergency...................... 531

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.

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

5
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.

472
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.