Page 457 of 612

4577-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents.
Failure to do so may cause damage to parts of the drivetrain as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or serious injury.
●Do not mix tires of different makes, models or tread patterns.
Also, do not mix tires of remarkably different treadwear.
●Do not use tire sizes other than those recommended by Lexus.
●Do not mix differently constructed tires (radial, bias-belted or bias-ply tires).
●Do not mix summer, all season and snow tires.
●Do not use tires that have been used on another vehicle.
Do not use tires if you do not know how they were used previously.
●Vehicles with an emergency tire puncture repair kit: Do not tow anything if a tire that
has been repaired using the emergency tire puncture repair kit is installed. The load
on the tire may cause unexpected damage to the tire.
■When initializing the tire pressure warning system
Do not operate the tire pressure warning reset switch without first adjusting the tire
inflation pressure to the specified level. Otherwise, the tire pressure warning light may
not come on even if the tire inflation pressure is low, or it may come on when the tire
inflation pressure is actually normal.
IS300h_EE_OM53C61E.book 457 ページ 2014年5月20日 火曜日 午後5時40分
Page 459 of 612
4597-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
●Stop the vehicle on a hard, flat surface.
●Set the parking brake.
●Shift the shift lever to P.
●Stop the hybrid system.
Replacing the tire (vehicles with a jack)
When raising your vehicle with a jack, position the jack correctly.
Improper placement may damage your vehicle or cause injury.
Before jacking up the vehicle
Location of the jack and tools
Jack
Jack handle
ScrewdriverTowing eyelet
Wheel nut wrench1
2
3
4
5
IS300h_EE_OM53C61E.book 459 ページ 2014年5月20日 火曜日 午後5時40分
Page 463 of 612
4637-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
Remove any dirt or foreign matter
from the wheel contact surface.
If foreign matter is on the wheel contact
surface, the wheel nuts may loosen
while the vehicle is in motion, causing
the tire to come off.
Install the spare tire and loosely tighten each wheel nut by hand by approxi-
mately the same amount.
Turn the wheel nuts until the washers
come into contact with the disc
wheel.
Lower the vehicle.
Firmly tighten each wheel 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 jack and all tools.
Installing the tire
1
2
Disc wheel
Wa s h e r
3
4
5
IS300h_EE_OM53C61E.book 463 ページ 2014年5月20日 火曜日 午後5時40分
Page 483 of 612
4837-3. Do-it-yourself maintenance
7
Maintenance and care
IS300h_EE(OM53C61E)
■Rear turn signal lights
Open the trunk, and remove the
2 covers and 2 screws.
When removing the cover, wrap the
tip of the screwdriver with tape to
protect the vehicle from damage.
Push and pull the light unit toward
the rear of the vehicle as shown in
the illustration to remove it.
Apply protective tape to the periph-
eral of the light unit installation sur-
face on the vehicle body, such as the
rear bumper, to protect the vehicle
from damage.
Pushing on the portion A in the illus-
tration toward the rear of the vehicle
will make disengagement of the tabs
easier.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
1
2
3
4
IS300h_EE_OM53C61E.book 483 ページ 2014年5月20日 火曜日 午後5時40分
Page 484 of 612
4847-3. Do-it-yourself maintenance
IS300h_EE(OM53C61E)
Install a new light bulb then install
the bulb base to the light unit by
inserting it and turning the bulb
base clockwise.
After installing the light bulb, turn on
the rear turn signal light to visually
check that there is no light leaking
from the bulb base.
Align the tabs and push the light
unit toward the front of the vehicle
to install it.
Remove the protective tape applied
to the peripheral of the light unit
installation surface on the vehicle
body.
Install the 2 screws and 2 covers.
5
6
7
IS300h_EE_OM53C61E.book 484 ページ 2014年5月20日 火曜日 午後5時40分
Page 486 of 612

4867-3. Do-it-yourself maintenance
IS300h_EE(OM53C61E)
■Outer foot lights
Press the upper part of the out-
side rear view mirror to tilt the
mirror face upward, and apply
protective tape to the lower part
of the mirror cover.
Insert 2 flathead screwdrivers
wrapped in protective tape, and
disconnect the tabs behind the
mirror.
Pry the mirror out toward you, dis-
connecting the tabs 2 at a time.
Work carefully, ensuring that you do
not drop the mirror.
Disconnect the connectors
behind the mirror, and remove
the mirror.
When removing the thin connectors,
make sure to mark one of the con-
nectors with a piece of tape, to avoid
mixing them up when reinstalling.
Work carefully, ensuring that you do
not drop the mirror.
When handling the mirror, do not
touch the parts applied with grease.
The number of connectors equipped
differs by vehicle specification.
Remove the 5 screws and take off
the mirror’s outer cover and the
cover behind the mirror.
1
2
3
4
IS300h_EE_OM53C61E.book 486 ページ 2014年5月20日 火曜日 午後5時40分
Page 493 of 612

493
8When trouble arises
IS300h_EE(OM53C61E)
8-1. Essential information
Emergency flashers................... 494
If your vehicle has to
be stopped in an
emergency ................................. 4958-2. Steps to take in an
emergency
If your vehicle needs to
be towed ..................................... 496
If you think something is
wrong ...........................................502
If a warning light turns
on or a warning buzzer
sounds..........................................503
If a warning message is
displayed.....................................509
If you have a flat tire
(vehicles without
run-flat tires).............................. 526
If you have a flat tire
(vehicles with
run-flat tires)..............................540
If the hybrid system will
not start ........................................ 541
If the shift lever cannot
be shifted from P ..................... 543
If the electronic key does
not operate properly ............. 544
If the 12-volt battery is
discharged ................................. 547
If your vehicle overheats ......... 552
If the vehicle becomes
stuck ............................................. 556
IS300h_EE_OM53C61E.book 493 ページ 2014年5月20日 火曜日 午後5時40分
Page 496 of 612
496
IS300h_EE(OM53C61E)8-2. Steps to take in an emergency
The following may indicate a problem with your transmission. Contact any
authorized Lexus dealer or repairer, or another duly qualified and equipped pro-
fessional or commercial towing service before towing.
●A warning message for the hybrid system is shown on the multi-information
display and the vehicle does not move.
●The vehicle makes an abnormal sound.
If your vehicle needs to be towed
If towing is necessary, we recommend having your vehicle towed by any
authorized Lexus dealer or repairer, or another duly qualified and equipped
professional or commercial towing service, using a lift-type truck or flatbed
truck.
Use a safety chain system for all towing, and abide by all state/provincial and
local laws.
Situations needs to contact dealers before towing
IS300h_EE_OM53C61E.book 496 ページ 2014年5月20日 火曜日 午後5時40分