air condition Lexus IS250 2014 Workshop Manual

5198-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
CAUTION
■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 with 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 has 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 repaired, 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 switch 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 operation. Be careful handling the kit during and
after operation.
●Do not attach the vehicle speed warning sticker 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 inflation pressure is 130 kPa (1.3 kgf/cm
2 or bar, 19 psi)
or below, this may indicate severe tire damage.

5318-2. Steps to take in an emergency
8
When trouble arises
IS250_EE(OM53C51E)
●The needle of the engine coolant temperature gauge (→P. 95) enters the red
zone or a loss of engine power is experienced. (For example, the vehicle
speed does not increase.)
●Steam comes out from under the hood.
Stop the vehicle in a safe place and turn off the air conditioning system, and
then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any authorized
Lexus dealer or repairer, or another
duly qualified and equipped profes-
sional.
The coolant level is satisfactory if it is
between the “FULL” and “LOW”
lines on the reservoir.
Reser voir
“FULL”
“LOW”
If your vehicle overheats
The following may indicate that your vehicle is overheating.
Correction procedures
1
2
3
1
2
4
1
2
3

5328-2. Steps to take in an emergency
IS250_EE(OM53C51E)
Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air conditioning system on to check that the radi-
ator cooling fans operate and to check for coolant leaks from the radiator or
hoses.
The fans operate when the air conditioning system is turned on immediately after a
cold start. Confirm that the fans are operating by checking the fan sound and air flow.
If it is difficult to check these, turn the air conditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact any authorized Lexus dealer or
repairer, or another duly qualified and equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest authorized Lexus dealer or repairer,
or another duly qualified and equipped professional.
5
6
7

5589-2. Customization
IS250_EE(OM53C51E)
■Lexus parking assist-sensor*1 (→P. 2 4 7 )
*1: If equipped
*2: When Lexus parking assist-sensor is operating.
■Automatic air conditioning system (→P. 3 76 )
FunctionDefault settingCustomized setting
Detection distance of the front
center sensorFarNearO—O
Detection distance of the rear
center sensorFarNearO—O
Buzzer volume31 to 5O—O
Display setting*2All sensors
displayedDisplay offO—O
123
FunctionDefault settingCustomized setting
Switching between outside air
and recirculated air mode linked
to “AUTO” switch operationOnOffO—O
A/C Auto switch operationOnOffO—O
123

564
IS250_EE(OM53C51E)What to do if... (Troubleshooting)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional. (→P. 114)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional immediately. (→P. 1 1 7 )
●Is the electronic key battery weak or depleted? (→P. 4 4 2 )
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (→P. 1 9 3 )
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly due to the condition of the radio wave.
(→P. 1 3 2 )
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(→P. 1 2 2 )
If you have a problem, check the following before contacting any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened

568
IS250_EE(OM53C51E)Alphabetical index
Alphabetical index
A/C ............................................................ 376
Air conditioning filter........................440
Automatic air conditioning
system .................................................. 376
Blower customization .....................383
AAC disc .................................................. 319
ABS (Anti-lock Brake System) ....... 265
Function ..................................................265
Warning light ....................................... 477
Accent color ............................................ 102
Air conditioning filter ..........................440
Air conditioning system ..................... 376
Air conditioning filter........................440
Automatic air conditioning
system .................................................. 376
Blower customization .....................383Airbags .......................................................... 41
Airbag manual on-off system..........52
Airbag operating conditions ........... 47
Airbag precautions for
your child ...............................................43
Correct driving posture.....................34
Curtain shield airbag operating
conditions .............................................. 47
Curtain shield airbag
precautions .......................................... 45
General airbag precautions ............43
Locations of airbags ............................. 41
Modification and disposal of
airbags.....................................................46
Side airbag operating
conditions .............................................. 47
Side airbag precautions.....................43
Side and curtain shield airbags
operating conditions ........................ 47
Side and curtain shield airbags
precautions ...........................................43
SRS airbags ............................................... 41
SRS warning light .............................. 476
Airbag manual on-off system ............. 52
Alarm ............................................................ 83
Anchor brackets .......................................67
Antennas (smart entry &
start system) ........................................ 130
A

574Alphabetical index
IS250_EE(OM53C51E)
Fuel consumption
Average fuel economy ...................... 101
Current fuel consumption................ 101
Fuel filler door ..........................................221
If the fuel filler door
cannot be opened ......................... 223
Refueling .................................................. 221
Fuel gauge .................................................. 95
Fuel pump shut off system ................. 475
Fuses .......................................................... 445
Gauges ........................................................ 95
Gear positions ....................................... 202
Glove box ................................................ 392
Glove box light ...................................... 392Hands-free system
(for cellular phone) ........................... 345
Head restraints ........................................156
Headlight cleaner...................................215
Headlights ............................................... 206
Automatic High Beam
system.................................................. 209
Discharge headlights
precautions ....................................... 462
Follow me home system................ 207
Light switch........................................... 206
Replacing light bulbs ......................... 461
Wattage ................................................. 548
Heaters ..................................................... 376
Air conditioning system ................. 376
Heated steering wheel ................... 387
Outside rear view mirrors ............ 382
Seat heaters..........................................388
Hill-start assist control ........................ 265
Hood ............................................................415
Open ......................................................... 415
Pop Up Hood ........................................ 54
Hooks
Cargo hooks ....................................... 395
Coat hooks........................................... 402
Retaining hooks (floor mat) .............32
Horn ............................................................ 160
G
H