2012 Lexus GS350 tire pressure

7567-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
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 profes-
sional. 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 infla-
tion pressure immediately.
If the tire pressure warning light comes on even after tire inflation pres-
sure adjustment, 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 quali-
fied 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
Precaution when installing a different tire
When differently constructed tires or tires of different makers, models or
tread patterns are installed, the tire pressure warning system may not oper-
ate properly.

7727-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the tire
inflation pressure is
lowCheck the tire inflation
pressure, and adjust to
the appropriate level.
(If equipped)
Indicates a malfunc-
tion in the tire pressure
warning system
Stop the vehicle in a
safe place and turn the
engine switch off then
on again.
If the tire pressure
warning indicator
flashes for 1 minute
then illuminates,
there is a malfunction
in the system. Have
the vehicle inspected
by any authorized
Lexus dealer or
repairer, or another
duly qualified and
equipped profes-
sional.

7737-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Wa r n i n g m e s s a g eDetailsCorrection procedure
(If equipped)
Indicates that the tire
position information
cannot be recognized
Drive for a short while
and check if the display
updates.
If the radio wave
conditions improve,
the display may
return to normal. If
the tire pressure is
still not displayed
after driving for sev-
eral minutes, stop the
vehicle in a safe
place, turn the engine
switch off then on
again, and start driv-
ing.
If the tire pressure is
still not displayed
even after repeating
this several times,
have the vehicle
inspected by any
authorized Lexus
dealer or repairer, or
another duly quali-
fied and equipped
professional.

7947-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
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. 850)
When using the compact spare tire
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 com-
pared 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. Per-
form 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.
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7 7-2. Steps to take in an emergency
When trouble arises
GS350/250_EE (OM30C36E)
CAUTION
Speed limit when using the compact spare tire
Do not drive at speeds in excess of 80 km/h (50 mph) when a compact
spare tire is installed on the vehicle.
The compact spare tire is not designed for driving at high speeds. Failure to
observe this precaution may lead to an accident causing death or serious
injury.
After using the tools and jack
Before driving, make sure all the tools and jack are securely in place in
their storage location to reduce the possibility of personal injury during a
collision or sudden braking.
NOTICE
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.
When replacing the tires
When removing or fitting the wheels, tires or the tire pressure warning
valve and transmitter, contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional as the tire pressure warn-
ing valve and transmitter may be damaged if not handled correctly.

8017-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
Emergency tire puncture repair kit components
Bottle
Air pressure gauge
Compressor switch
Air release capStickers
Hose
Power plug
Insertion key1
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4
5
6
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8077-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)Connect the hose to the valve.
Screw the end of the hose clock-
wise as far as possible.
Check the specified tire infla-
tion pressure.
Tire inflation pressure is specified
on the label as shown. (P. 850)
Start the engine. (P. 207)
To inject the sealant and
inflate the tire, turn the com-
pressor switch on.
Use the kit with the top facing
upward.
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8087-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)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),
then gradually decrease.
The air pressure gauge will
display the actual tire infla-
tion pressure about 1 minute
after the switch is turned on.
• 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 recom-
mended tire inflation pres-
sure is reached.
• If the needle of the air pres-
sure gauge reaches the red
zone (450 kPa [4.5 kgf/cm
2
or bar, 65 psi] or more), there
may be a malfunction in the
tire or in the kit itself. Stop
operation immediately.
• If the tire inflation pressure is
still lower than the recom-
mended level after inflation
for 10 minutes with the
switch on, the tire is too dam-
aged to be repaired. Turn the
compressor switch off and
contact any authorized Lexus
dealer or repairer, or another
duly qualified and equipped
professional.
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