Page 457 of 609

436
4-3. Do-it-yourself maintenance
IS250/220d/200d_EE
If the electronic key battery is discharged
The following symptoms may occur.
The smart entry & start system and wireless remote control will not
function properly.
The operational range is reduced.
Use a CR1632 lithium battery
Batteries can be purchased at any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional, jewelers, or camera
stores.
Replace only with the same or equivalent type recommended by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
Dispose of used batteries according to the local laws.
When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus
dealer can replace the battery for you.
CAUTION
Removed battery and other parts
Keep away from children. These parts are small and if swallowed by a child,
they can cause choking. Failure to do so could result in death or serious
injury.
Certification for the smart entry & start system
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCOR-
RECT TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE
INSTRUCTIONS.
Page 458 of 609
437
4-3. Do-it-yourself maintenance
4
Maintenance and care
IS250/220d/200d_EE
NOTICE
For normal operation after replacing the battery
Observe the following precautions to prevent accidents.
Always work with dry hands.
Moisture may cause the battery to rust.
Do not touch or move any other components inside the remote control.
Do not bend either of the battery terminals.
Page 483 of 609

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
Page 484 of 609
458
IS250/220d/200d_EE
5-1. Essential information
Emergency flashers
NOTICE
To prevent battery discharge
Do not leave the emergency flashers on longer than necessary when the
engine is not running.
Use the emergency flashers if the vehicle malfunctions or is involved
in an accident.
Press the switch to flash all
the turn signal lights. To turn
them off, press the switch
once again.
Page 498 of 609

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.
Page 510 of 609
484
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Once
(Flashing)
Indicates that
the key battery
is low.Replace the bat-
tery. (P. 435)
Once
(Vehicles with an
automatic transmis-
sion)
Indicates that a
door has been
opened or closed
and the
“ENGINE
START STOP”
switch has been
turned twice to
ACCESSORY
mode with the
“ENGINE
START STOP”
switch OFF.
Press the
“ENGINE
START STOP”
switch while
applying the
brakes.
Once
(Vehicles with a man-
ual transmission)
Indicates that a
door has been
opened or closed
and the
“ENGINE
START STOP”
switch has been
switched twice
to ACCES-
SORY mode
from OFF.
Press the
“ENGINE
START STOP”
switch while
depressing the
clutch pedal.
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Page 512 of 609
486
5-2. Steps to take in an emergency
IS250/220d/200d_EE
*: If the engine does not start when the electronic key is inside the vehicle,
the electronic key battery may be depleted or there may be difficulties
receiving the signal from the key. (P. 42)
Once
(Vehicles with a man-
ual transmission)Indicates that
the electronic
key does not
operate properly.
P. 5 2 2
(Vehicles with a man-
ual transmission)
Inte-
rior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Page 541 of 609

5
515
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed (P. 156), 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.
IS250: Refuel the vehicle.
IS220d and IS200d: P. 531
The engine may be flooded. (IS250)
Try to restart the engine once more following correct start-
ing procedures. (P. 156)
There may be a malfunction in the engine immobilizer sys-
tem.
(P. 96)
The starter motor turns over slowly, the interior lights and
headlights are dim, or the horn does not sound or sounds at a
low volume.
One of the following may be the cause of the problem.
The battery may be discharged. (P. 524)
The battery terminal connections may be loose or corroded.
The starter motor does not turn over, the interior lights and
headlights 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. 524)
There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional, if the problem can-