2018 Lexus GS300 run flat

4927-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)• If the tire inflation pressure is still lower than the specified po
int after inflation for
10 minutes (35 minutes at low temperature) with the switch on, the tire is too
damaged to be repaired. Turn the co mpressor switch off and contact your
Lexus dealer.
• If the tire inflation pressure exceeds th e recommended level, let out some air to
adjust the tire inflation pressure. (→ P. 494, 528)
With the compressor switch off, disconnect the hose from the valve on the tire
and then pull out the power plug from the power outlet socket.
Some sealant may leak when the hose is removed.
Install the valve cap onto the valve of the emergency repaired tire.
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.
Temporarily store the bottle in the trunk while it is connected to the compres-
sor.
To spread the liquid sealant evenly within the tire, immediately drive safely for
about 3 miles (5 km) below 50 mph (80 km/h).
After driving for about 3 miles
(5 km), stop your vehicle in a safe
place on a hard, flat surface and
remove the air release cap from the
hose before reconnecting the repair
kit.
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15
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4937-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
7
When trouble arises
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
19 psi (130 kPa, 1.3 kgf/cm
2 or
bar): The puncture cannot be
repaired. Contact your Lexus
dealer.
If the tire inflation pressure is 19 psi (130 kPa, 1.3 kgf/cm
2 or bar) or higher,
but less than the recommended level: Proceed to step .
If the tire inflation pressure is the recommended level: Proceed to step .
Turn the compressor switch on to inflate the tire until the recommended tire
inflation pressure is reached. Drive for about 3 miles (5 km) 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.
Store the bottle in the trunk while it is connected to the compressor.
Taking precautions to avoid sudden br aking, sudden acceleration and sharp
turns, drive carefully at under 50 mph (80 km/h) to your Lexus dealer that is
less than 62 miles (100 km) away for tire repair or replacement.
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2
20
321
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4967-2. Steps to take in an emergency
GS350_300_GS F_OM_OM30G34U_(U)
WARNING
■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 19 psi (130 kPa, 1.3 kgf/cm
2 or
bar) or less, the tire may be severely damaged.
NOTICE
■When performing an emergency repair
●Perform the emergency repair without removi ng the nail or screw that has punctured
the tread of the tire. If the object that has punctured the tire is removed, repair by the
emergency tire puncture repair kit may not be possible.
●The repair kit is not waterproof. Make sure that the repair kit is not exposed to water,
such as when it is be ing used in the rain.
●Do not put the repair kit directly onto dusty ground such as sand at the side of the
road. If the repair kit vacuums up dust etc., a malfunction may occur.
■Handling the emergency tire puncture repair kit
●The repair kit power source should be 12 V DC suitable for vehicle use. Do not con-
nect the repair kit to any other source.
●If gasoline splatters on the repair kit, the repair kit may deteriorate. Take care not to
allow gasoline to contact it.
●Store the emergency tire puncture repair kit in the trunk.
The kit may be thrown around during sudden braking and so forth, damaging the kit.
●Store the repair kit in the tr unk out of reach of children.
●Do not disassemble or modify the repair kit. Do not subject parts such as the air pres-
sure indicator to impacts. This may cause a malfunction.
■To avoid damage to the tire pressu re 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 liquid sealant is used, contact your Lexus dealer 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. 394)

GS350_300_GS F_OM_OM30G34U_(U)
5318-1. Specifications
8
Vehicle specifications
GS F
*: If equipped
Tire size255/35ZR19 (92Y) (front), 275/35ZR19 (96Y) (rear),
225/40ZR19 (93Y) XL (spare)
*
Tire inflation pressure
(Recommended
cold tire inflation
pressure)
Vehicle speed
Front tire
psi (kPa, kgf/cm2
or bar)
Rear tire
psi (kPa, kgf/cm2
or bar)
More than 137 mph
(220 km/h)44 (300, 3.0)44 (300, 3.0)
137 mph (220 km/h)
or less36 (250, 2.5)36 (250, 2.5)
Tire inflation pressure
(spare)
(Recommended
cold tire inflation
pressure)
42 psi (290kPa, 2.9kgf/cm2 or bar)
Wheel size19 × 9J (255/35ZR19), 19 × 10J (275/35ZR19),
19 × 8 1/2J (225/40ZR19)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
ExteriorFront turn signal lights*7444NA28A
Outer foot lightsW5W5B
InteriorVanity lights⎯8B
Trunk light⎯3.8B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*: Vehicles with single-beam headlights

600
GS350_300_GS F_OM_OM30G34U_(U)GAS STATION INFORMATION
Auxiliary catch leverTrunk openerFuel filler door
P. 373 P. 143 P. 229
Hood lock release leverTire inflation pressure
P. 373
P. 528
Fuel tank capacity
(Reference) 17.5 gal. (66.3 L, 14.6 Imp.gal.)
Fuel type
Unleaded gasoline only P. 521
Cold tire inflation
pressure P. 528
Engine oil capacity
(Drain and refill —
reference) P. 522
Engine oil type
P. 522