Page 550 of 688

5507-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■When a tire is replaced with a spare tire
Vehicles with a compact spare tire: The compact spare tire is not equipped with a tire
pressure warning valve and transmitter. If a tire goes flat, the tire pressure warning
light will not turn off even though the flat tire has been replaced with the spare tire.
Vehicles with a full-size spare tire: The spare tire is also equipped with a tire pressure
warning valve and transmitter. The tire pressure warning light will turn on if the tire
inflation pressure of the spare tire is low. If a tire goes flat, the tire pressure warning
light will not turn off even though the flat tire has been replaced with the spare tire.
■Conditions that the tire pressure warning system may not function properly
→P. 4 7 2
■If the tire pressure warning light freque ntly comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute when
the engine switch is turned to IGNITION ON mode, have it checked by any autho-
rized Lexus dealer or repairer, or another duly qualified and equipped professional.
■Warning buzzer
In some cases, the buzzer may not be heard because of noisy place or an audio
sound.
GS350_250_OM_OM30E16E_(EE).book Page 550 Tuesday, July 8, 201 4 7:11 PM
Page 551 of 688

5517-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
CAUTION
■If both the ABS and the brake system warning lights remain on
Stop your vehicle in a safe place immediately and contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional. The vehicle
will become extremely unstable during braking, and the ABS system may fail,
which could cause an accident resulting in death or serious injury.
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause a loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
NOTICE
■To ensure the tire pressure warning system operates properly
Do not install tires with different specifications or makers, as the tire pressure warn-
ing system may not operate properly.
GS350_250_OM_OM30E16E_(EE).book Page 551 Tuesday, July 8, 2014 7:11 PM
Page 567 of 688

5677-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
A warning message is shown on the multi-information display. After taking
the specified steps to correct the suspected problem, check that the
warning message goes off.
Follow the correction procedures.
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the Auto-
matic High Beam switch
is pressed while the head-
lights are in low beam.Turn the high beam on
and press the Automatic
High Beam switch again.
Indicates that the washer
fluid level is lowAdd washer fluid.
(If equipped)
Indicates that the fuel
injectors require mainte-
nance
Have any authorized
Lexus dealer or repairer,
or another duly qualified
and equipped profes-
sional replenish the injec-
tor cleaner and reset the
message.
(If equipped)
Indicates that the tire
inflation pressure is lowCheck the tire inflation
pressure, and adjust to
the appropriate level.
GS350_250_OM_OM30E16E_(EE).book Page 567 Tuesday, July 8, 201 4 7:11 PM
Page 588 of 688

5887-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(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, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
(→ P. 6 4 5 )
■When using the compact spare tire (vehicles with the tire pressure warning sys-
tem)
As the compact spare tire is not equipped with a tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated by the tire
pressure warning system. Also, if you replace the compact spare tire after the tire
pressure warning light comes on, the light remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire compared to
when driving with standard tires.
■If you have a flat rear tire on a road covered with snow or ice (vehicles with front
and rear tires of the same size and compact spare tire only)
Install the compact spare tire on one of the front wheels of the vehicle. Perform the
following 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.
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 588 Tuesday, July 8, 201 4 7:11 PM
Page 601 of 688
6017-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
Attach the 2 stickers as shown.
Remove any dirt and moisture from
the wheel before attaching the sticker.
If you are unable to apply the stickers,
inform the nearest any authorized
Lexus dealer or repairer, or another
duly qualified and equipped profes-
sional that sealant has been applied to
the puncture when having the tire
repaired or replaced.
Check the specified tire inflation pressure.
Tire inflation pressure is specified on
the label as shown. (→P. 6 4 5 )
Start the engine. ( →P. 2 3 7 )
8
9
10
GS350_250_OM_OM30E16E_(EE).book Page 601 Tuesday, July 8, 201 4 7:11 PM
Page 602 of 688
6027-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
To inject the sealant and inflate
the tire, turn the compressor
switch on.
Inflate the tire until the recom-
mended pressure is reached.The sealant will be injected
and the pressure will spike
to 300 kPa (3.0 kgf/cm
2 or
bar, 44 psi) or 400 kPa (4.0
kgf/cm
2 or bar, 58 psi), and
then gradually decrease.
The air pressure gauge will dis-
play the actual tire inflation
pressure about 1 minute (15
minutes at low temperature)
after the switch is turned on.
Inject to recommended pres-
sure.
• Turn the compressor switch off and then check the tire inflation
pressure. Being careful not to
over inflate, check and repeat
the inflation procedure until the
specified tire inflation pressure is
reached.
11
12
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 602 Tuesday, July 8, 201 4 7:11 PM
Page 603 of 688
6037-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
• If the tire inflation pressure is stilllower than the specified point
after inflation for 10 minutes (35
minutes at low temperature)
with the switch on, the tire is too
damaged to be repaired. Turn
the compressor switch off and
contact any authorized Lexus
dealer or repairer, or another
duly qualified and equipped
professional.
• If the tire inflation pressure exceeds the recommended
level, let out some air to adjust
the tire inflation pressure.
(→ P. 608, 645)
GS350_250_OM_OM30E16E_(EE).book Page 603 Tuesday, July 8, 201 4 7:11 PM
Page 605 of 688

6057-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
Turn the compressor switch on
and wait for several seconds, and
then turn it off. Check the tire
inflation pressure.If the tire inflation pressure is
under 130 kPa (1.3 kgf/cm
2 or
bar, 19 psi): The puncture can-
not be repaired. Contact any
authorized Lexus dealer or
repairer, or another duly quali-
fied and equipped profes-
sional.
If the tire inflation pressure is
130 kPa (1.3 kgf/cm
2 or bar, 19
psi) or higher, but less than the
recommended level: Proceed
to step .
If the tire inflation pressure is
the recommended level: Pro-
ceed to step .
Turn the compressor switch on to inflate the tire until the recommended
tire inflation pressure is reached. Drive for about 5 km (3 miles) and
then perform step .
Attach the air release cap to the
end of the hose.
If the air release cap is not attached,
the sealant may leak and the vehicle
may get dirty.
19
1
2
20
3
21
20
18
21
GS350_250_OM_OM30E16E_(EE).book Page 605 Tuesday, July 8, 201 4 7:11 PM