flat tire Lexus IS300h 2017 Service Manual

6238-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
WARNING
■When fixing the flat tire
●Stop your vehicle in a safe and flat area.
●Do not touch the wheels or the area around the brakes immediately after the vehicle
has been driven. After the vehicle has been driven, the wheels and the area around the brakes may be
extremely hot. Touching these areas with hands, feet or other body parts may result in
burns.
●Connect the valve and hose securely wi th the tire installed on the vehicle.
●If the hose is not properly connected to the valve, air leakage may occur or sealant
may be sprayed out.
●If the hose comes off the valve while inflating the tire, there is a risk that the hose will
move abruptly due to air pressure.
●After inflation of the tire ha s completed, the sealant may splatter when the hose is dis- connected or some air is let out of the tire.
●Follow the operation procedure to repair the tire. If the procedure is not followed, the
sealant may spray out.
●Keep back from the tire while it is being re paired, as there is a chance of it bursting
while the repair operation is being performed. If you notice any cracks or deforma-
tion of the tire, turn off the compressor sw itch and stop the repair operation immedi- ately.
●The kit may overheat if operated for a long period of time. Do not operate the com-
pressor continuously for more than 10 minutes.
●Parts of the kit become hot during operatio n. Be careful handling the kit during and
after operation.
●Do not attach the vehicle speed warning stic ker to an area other than the one indi- cated. If the sticker is attached to an area where an SRS airbag is located, such as the
pad of the steering wheel, it may prevent the SRS air bag from operating properly.
■Driving to spread the liquid sealant evenly
●Drive the vehicle carefully at a low speed. Be especially careful when turning and cor-
nering.
●If the vehicle does not drive straight or you feel a pull through the steering wheel, stop the vehicle and check the following:
• Tire condition. The tire may have separated from the wheel.
• Tire inflation pressure. If tire infl ation pressure is 130 kPa (1.3 kgf/cm2 or bar, 19 psi) or below, this may indi cate severe tire damage.

6258-2. Steps to take in an emergency
8
When trouble arises
IS300h_EE(OM53D89E)
■Run-flat tires (A “RFT” or “DSST” mark is molded on the sidewall)
Take your vehicle to the nearest
Lexus dealer or authorized tire
dealer as soon as possible if any tire
goes flat.
The vehicle can be driven for a maxi- mum of 300 km (186 miles) at a
speed below 60 km/h (37 mph)
after the tire pressure warning light comes on. ( P. 578)
■In some conditions (such as at high temperatures)
You cannot continue driving for up to 300 km (186 miles).
■For the detailed informat ion on run-flat tires
See the tire warranty booklet.
If you have a flat tire (vehicles with run-flat tires)
Your vehicle is not equipped with a sp are tire, but instead you can continue
driving the vehicle with run-flat tires even if any tire goes flat.In this case, slow
down and drive with extra caution.
NOTICE
■When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning valve and trans-
mitter, contact any authorized Lexus retailer or Lexus authorized repairer, or any reli- able repairer as the tire pressure warning valve and transmitter may be damaged if not
handled correctly.
■When driving over bumps
If a vehicle has a flat tire, the vehicle height will be lower than usual. Ensure that nothing
strikes the bottom of the vehicle.
■To avoid damage to the tire pressure warning valves and transmitters
When a tire is repaired with liquid sealants , the tire pressure warning valve and trans-
mitter may not operate properly. If a liqui d sealant is used, contact any authorized
Lexus retailer or Lexus authoriz ed repairer, or any reliable repairer or other qualified service shop as soon as possible. Make sure to replace the tire pressure warning valve
and transmitter when replacing the tire. ( P. 526)

6529-1. Specifications
IS300h_EE(OM53D89E)
16-inch tires
*1: For driving at vehicle speeds of more than 190 km/h (118 mph)
*2: For driving at vehicle speeds of 190 km/h (118 mph) or less
*3: For optimizing fuel economy, ECO tire pressure is recommended. Tire pressure
affects traveling comfort, road noise and steering characteristics.
Tires and wheels
Tire size205/55R16 91W
Tire inflation
pressure
(Recommended cold tire inflation
pressure)
Normal pressure260 kPa (2.6 kgf/cm2 or bar, 38 psi)*1
250 kPa (2.5 kgf/cm2 o r ba r, 36 p si)*2
ECO tire pressure*3270 kPa (2.7 kgf/cm2 or bar, 39 psi)
Wheel size16  7J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

653
9
9-1. Specifications
Vehicle specifications
IS300h_EE(OM53D89E)
17-inch tires
18-inch tires
■When towing a trailer (vehicles with a towing package)
Add 20.0 kPa (0.2 kgf/cm2 o r b ar, 3 psi) to th e rec omm en ded tire inflation pressure, and drive at speeds below 100 km/h (62 mph).
Tire size225/45R17 91W, 225/45RF17 91W
Tire inflation
pressure
(Recommended cold tire inflation
pressure)
Vehicle speed
Front wheel
kPa (kgf/cm2 or
bar, psi)
Rear wheel
kPa (kgf/cm2 or
bar, psi)
More than 190 km/h (118 mph)290 (2.9, 42)290 (2.9, 42)
190 km/h (118 mph) or
less250 (2.5, 36)250 (2.5, 36)
Wheel size17  7 1/2J
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)
Tire size225/40R18 88Y, 255/35R18 90Y
Tire inflation pressure
(Recommended
cold tire inflation pressure)
250 kPa (2.5 kgf/cm2 or bar, 36 psi)
Wheel size18  8J (225/40R18), 18  8 1/2J (255/35R18)
Wheel nut torque103 N•m (10.5 kgf•m, 76 ft•lbf)

666
IS300h_EE(OM53D89E)
9-3. Initialization
Items to initialize
The following item must be initialized for normal system operation after such
cases as the 12-volt battery being re connected, or maintenance being per-
formed on the vehicle:
ItemWhen to initializeReference
Engine oil maintenance dataAfter changing the engine oilP. 518
Tire pressure warning system
• When rotating the tires • When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
P. 527

671What to do if... (Troubleshooting)
IS300h_EE(OM53D89E)
●Is the message displayed on the multi-information display?
Check the message on the mu lti-information display. (P. 581)
●When a warning light turns on or a warning message is displayed, refer to
P. 575, 581.
●Vehicles with an emergency tire puncture repair kit
Stop the vehicle in a safe place and repa ir the flat tire temporarily with the
emergency tire puncture repair kit. ( P. 610)
●Vehicles with run-flat tires
Slow down and drive with extra caution . Take your vehicle to the nearest
authorized Lexus retailer or Lexus au thorized repairer, or any reliable
repairer or authorized tire dealer to have the flat tire replaced.
( P. 625)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
( P. 641)
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

677Alphabetical index
IS300h_EE(OM53D89E)
Emergency, in case of
If a warning message is
displayed ............................................. 581
If the 12-volt battery is
discharged...........................................631
If the electronic key does not
operate properly ............................628
If the hybrid system will not
start ........................................................ 626
If the warning buzzer sounds ......575
If the warning light turns on ..........575
If you have a flat tire ............... 610, 625
If you think something
is wrong............................................... 574
If your vehicle becomes stuck.......641
If your vehicle has to be
stopped in an emergency.......... 567
If your vehicle needs to
be towed............................................ 568
If your vehicle overheats ................636
Electronically Controlled
Brake System (ECB) ...................... 352
Emergency brake signal.................... 353
Emergency flashers ............................. 566
Emergency tire puncture
repair kit ................................................. 610
Energy monitor ....................................... 127
Engine ....................................................... 646
ACCESSORY mode ..................... 220
Compartment .......................................515
Engine switch ........................................ 219
Hood ......................................................... 513
How to start the hybrid
system.................................................... 219
Identification number....................... 645
Ignition switch
(power switch) .................................. 219
Overheating ........................................ 636
Power switch ......................................... 219
Engine coolant.........................................519
Capacity................................................. 649
Checking .................................................519
Preparing and checking
before winter...................................... 361

678Alphabetical index
IS300h_EE(OM53D89E)
Engine coolant temperature
gauge....................................................... 105
Engine oil................................................... 516
Capacity ................................................. 647
Checking ................................................ 516
Preparing and checking
before winter ......................................361
Engine oil maintenance data............. 518
Engine switch .......................................... 219
EPS (Electric Power Steering)........ 352
Warning light ....................................... 576
ERA-GLONASS. ................................ 496
EV drive mode ....................................... 224
EV indicator ............................................... 79
First-aid kit storage belt .....................488
Flat tire
Vehicles with emergency
tire puncture repair kit ...................610
Vehicles with run-flat tires ............ 625
Floor mats ................................................... 34
Fluid
Brake .........................................................651
Hybrid
transmission......................................650
Washer..................................................... 521
Fog light .................................................... 244
Replacing light bulbs ....................... 562
Switch .......................................................244
Follow me home system .................... 238
Footwell light ........................................... 481
Wattage ................................................. 654
Front personal lights............................ 482
Wattage ................................................. 654
Front position lights ............................. 237
Light switch............................................237
Replacing light bulbs ....................... 562
F

685Alphabetical index
IS300h_EE(OM53D89E)
Rear personal lights .............................482
Wattage..................................................654
Rear sunshade ....................................... 493
Operation .............................................. 493
Reverse operation feature ............ 493
Rear turn signal lights.......................... 233
Replacing light bulbs........................562
Turn signal lever ................................. 233
Rear view mirror
Inside rear view mirror......................187
Outside rear view mirrors.............. 189
Rear view monitor system.................. 318
Rear window defogger ..................... 474
Refueling .................................................. 253
Capacity .................................................646
Fuel types ...............................................646
If the fuel filler door cannot
be opened .........................................255
Opening the fuel tank cap ............255
Regenerative braking ............................ 79
Remote Touch*....................................460
Replacing
Electronic key battery......................549
Fuses ........................................................552
Light bulbs ............................................ 556
Tires .......................................................... 537
Rev indicator............................................ 107
Rev peak .................................................... 107
Road accident cautions......................... 84
RSA (Road Sign Assist) ................... 288
Run-flat tires ............................................ 625
Seat belt reminder light ......................577
Seat belts..................................................... 38
Adjusting the seat belt ....................... 39
Child restraint system
installation ............................................. 68
Cleaning and maintaining
the seat belt....................................... 507
Emergency Locking
Retractor (ELR) ................................. 40
How to wear your seat belt ............ 38
How your child should wear
the seat belt.......................................... 40
Pregnant women, proper
seat belt use ........................................... 41
Reminder light and
buzzer...................................................577
Seat belt pretensioners...................... 39
SRS warning light .............................. 576
Seat heaters ............................................480
Seat position memory........................... 177
Seat ventilators ......................................480
S
*: For vehicles with a 10 .3-inch display, refer to
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.

688Alphabetical index
IS300h_EE(OM53D89E)
Paddle shift switches ........................ 228
Power door lock switch ................... 147
Power switch .........................................219
Power window switches ..................193
Rear sunshade switch...................... 493
Rear window and outside rear
view mirror defoggers
switch.................................................... 474
Seat heater switches ....................... 480
Seat ventilator switches ................. 480
Snow mode switch ............................227
Talk switch ............................................. 432
Telephone switches.......................... 432
Tilt and telescopic steering
control switch .................................... 185
Tire pressure warning reset
switch.................................................... 527
Trunk opener main switch ............. 153
Trunk opener switch ........................... 151
Vehicle-to-vehicle distance
button ................................................... 299
VSC OFF switch ...............................354
Window lock switch...........................193
Windshield wiper de-icer
switch.................................................... 475
Windshield wiper
and washer switch ......................... 245
Tachometer ............................................. 105
Tachometer settings .............................. 119
Tail lights................................................... 237
Light switch............................................237
Replacing light bulbs ....................... 562
Talk switch ............................................... 432
Telephone switches ............................. 432
Theft deterrent system
Alarm ...........................................................92
Double locking system ........................ 91
Immobilizer system ............................. 86
Intrusion sensor a nd tilt sensor...... 95
Tire inflation pressure ......................... 543
Maintenance data ............................. 652
Tire pressure warning system..... 526
Warning light....................................... 578
Tire pressure warning system ......... 526
Initializing ................................................527
Installing tire pressure warning
valves and transmitters ............... 526
Registering ID codes........................527
Tire pressure warning reset
switch ....................................................527
Warning light....................................... 578
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