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 491 of 609
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
Page 513 of 609
5
487
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
If you have a flat tire (vehicles with a spare tire)
Remove the flat tire and replace it with the spare provided.
Before jacking up the vehicle
Stop the vehicle on a hard, flat surface.
Set the parking brake.
Shift the shift lever to P (vehicles with an automatic trans-
mission) or R (vehicles with a manual transmission).
Stop the engine.
Turn on the emergency flashers.
Location of the spare tire, jack and tools
With a compact spare tire
Jack
Jack handle
Tighte Loosen
Spare tire
Tool bag
(including towing eye-
Page 516 of 609
490
5-2. Steps to take in an emergency
IS250/220d/200d_EE
Replacing a flat tire
Chock the tires.
Slightly loosen the wheel nuts
(one turn).
Turn the tire jack portion “A”
by hand until the notch of the
jack is in contact with the jack
point.
STEP1
Flat tireWheel
chock posi-
Front
Left-
hand
sideBehind the
rear right-
hand side
Right-
hand
sideBehind the
rear left-
hand side
Rear
Left-
hand
sideIn front of
the front
right-hand
Right-
hand
sideIn front of
the front
left-hand
STEP2
STEP3
Page 519 of 609
5
493
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EELower the vehicle.
Firmly tighten each nut two or
three times in the order shown
in the illustration.
Tightening torque:
103 N•m (10.5 kgf•m, 76 ft•lbf)
Stow the flat tire, tire jack and all tools.
STEP3
STEP4
STEP5
Page 520 of 609
494
5-2. Steps to take in an emergency
IS250/220d/200d_EE
The compact spare tire
The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily only in an emergency.
Make sure to check the tire pressure of the compact spare tire. (P. 548)
If you have a flat rear tire on a road covered with snow or ice (vehicles with
a compact spare tire)
Install the compact spare tire on the front of the vehicle. Perform the follow-
ing steps and fit tire chains to the rear tires.
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the
vehicle.
Fit tire chains to the rear tires.
STEP1
STEP2
STEP3
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496
5-2. Steps to take in an emergency
IS250/220d/200d_EE
CAUTION
Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the
vehicle suddenly falling off the jack.
Do not use the tire jack for any purpose other than replacing tires or
installing and removing tire chains.
Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do not use other tire jacks for replac-
ing tires on this vehicle.
Always check that the tire jack is securely set to the jack point.
Do not put any part of your body under the vehicle supported by a jack.
Do not start or run the engine while your vehicle is supported by the jack.
Do not raise the vehicle while someone is in it.
When raising the vehicle, do not put an object on or under the jack.
Do not raise the vehicle to a height greater than that required to replace the
tire.
Use a jack stand if it is necessary to get under the vehicle.
Take particular care when lowering the vehicle to ensure that no one work-
ing on or near the vehicle may be injured.
Replacing a flat tire
Do not attach a heavily damaged wheel ornament, as it may fly off the
wheel while the vehicle is moving.
Failure to follow these precautions could cause the wheel nuts to loosen
and the tire to fall off, resulting in death or serious injury.
• Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing a
serious accident. Remove any oil or grease from the wheel bolts or
wheel nuts.
• Have the wheel nuts tightened with a torque wrench to 103 N
•m (10.5
kgf
•m, 76 ft•lbf) as soon as possible after changing wheels.
Page 524 of 609

498
5-2. Steps to take in an emergency
IS250/220d/200d_EE
CAUTION
When the compact spare tire is attached
The vehicle speed may not be correctly detected, and the following systems
may not operate correctly:
ABS & Brake assist
VSC
TRC
EPS
VDIM
Navigation system (if equipped)
Lexus parking assist-sensor (if equipped)
Dynamic radar cruise control (if equipped)
Cruise control (if equipped)
PCS (if equipped)
NOTICE
Do not drive the vehicle with a flat tire.
Do not continue driving with a flat tire.
Driving even a short distance with a flat tire can damage the tire and the
wheel beyond repair.
Be careful when driving over bumps with the compact spare tire installed on
the vehicle.
The vehicle becomes lower when driving with the compact spare tire com-
pared to when driving with standard tires. Be careful when driving over
uneven road surfaces.
Driving with tire chains and the compact spare tire
Do not fit tire chains to the compact spare tire.
Tire chains may damage the vehicle body and adversely affect driving per-
formance.