LEXUS RCF 2018 Owners Manual

5117-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises After driving, stop your vehicle in a
safe place on a hard, flat surface and
reconnect the compressor.
Turn the compressor switch on and
wait for several seconds, then turn it
off. Check the tire inflation pressure.
If the tire inflation pressure is
below 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 between 19 psi (130 kPa, 1.3 kgf/cm 2
or bar)
and a point below the recommended leve l: The tire can be repaired. Pro-
ceed to step .
If the tire inflation pressure is at 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.19
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512 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)■
Emergency tire puncture repair kit ●
The sealant has a limited lifespan. The expiry date is marked on the bottle. The sealant
should be replaced before the expiry date. Contact your Lexus dealer for replacement.●
The sealant stored in the emergency tire puncture repair kit can be used only once to
temporarily repair a single tire. If the seal ant has been used and needs to be purchased,
contact your Lexus dealer. The compressor is reusable.●
The sealant can be used when the outside temperature is from -40  F (-40  C) to
140  F (60  C).●
The kit is exclusively designed for size and type of tires originally in stalled on your vehi-
cle. Do not use it for tires that a different size than the original ones, or for any other
purposes. ●
If the sealant gets on yo ur clothes, it may stain.●
If the sealant adheres to a wheel or the surface of the vehicle body, the stain may not be
removable if it is not cleaned at once. Immediately wipe away the sealant with a wet
cloth. ●
During operation of the kit, a loud operation noise is produc ed. This does not indicate a
malfunction. ●
Do not use the emergency tire puncture repair kit to check or to adjust the tire pres-
sure.

5137-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises ■
If the tire is inflated to mo re than the recommended level
Disconnect the hose from the valve.
Disconnect the hose from the valve, remove the air releas e cap from the hose and then
reconnect the hose.
Turn the compressor switch on and wait for se veral seconds, then turn it off. Check that
the air pressure indicator sh ows the recommended level. (  P. 548)
If the air pressure is lower than the reco mmended level, turn th e compressor switch on
again and repeat the inflation procedure un til the recommended pr essure is reached.■
After a tire is repaired with the emergency tire puncture repair kit ●
The tire pressure warning valve an d transmitter should be replaced.●
Even if the tire inflation pres sure is at the recommended leve l, the tire pressure warning
light may come on/flash. ■
Note for checking the emergency tire puncture repair kit
Check the sealant expi ry date occasionally.
The expiry date is shown on the bottle. Do not use sealant whose expiry date has already
passed. Otherwise, repairs co nducted using the emergency ti re puncture repair kit may
not be performed properly. Install the air release cap to the end of the
hose and push the protrusion on the air
release cap into the valve to let some air out.
WARNING ■
Caution while driving
Observe the following precautions.
Failure to do so may cause an accident. ●
The emergency tire puncture repair kit is made exclusively for your vehicle. Do not
use it on other vehicles. ●
Do not use the emergency tire puncture repa ir kit for tires that are a different size
than the specified ones or for any other pu rpose. Doing so may cause the tires to not
be repaired properly. ■
Precautions for use of the sealant ●
Ingesting the sealant is hazardous to your health. If you ingest sealant, consume as
much water as possible, then immediately consult a doctor. ●
If sealant gets in eyes or adheres to skin, immediately wash it off with water. If discom-
fort persists, consult a doctor. 1
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514 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)WARNING ■
When fixing the flat tire
Observe the following precautions.
Failure to do so may result in death or serious injury.●
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
disconnected 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 repa ir 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 35 minutes. ●
Parts of the kit become hot during operation. Be careful handling the kit during and
after operation. Do not touch the metal part around the connecting area between the
bottle and compressor. It will be extremely hot. ●
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 preven t the SRS airbag from operating properly.■
Driving to spread th e 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 below, this may in dicate severe tire damage.

5157-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises 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 kit is not waterproof. Make sure that th e kit is not exposed to water, such as when
it is being used in the rain. ●
Do not put the kit directly onto dusty ground such as sand at the side of the road. If the
kit vacuums up dust etc., a malfunction may occur. ●
Make sure to stand the kit with the bottle ve rtical. The kit cannot work properly if it is
laid on its side. ■
Handling the emergency tire puncture repair kit ●
The compressor power source should be 12 V DC suitable for vehicle use. Do not
connect the compressor to any other source. ●
If gasoline splatters on the kit, the kit may deteriorate. Take care not to allow gasoline
to contact it. ●
Store the emergency tire punctu re repair kit in the trunk.
The kit may be thrown around during sudden braking and so forth, damaging the kit. ●
Store the kit in its assigned place out of reach of children.●
Do not disassemble or modify the kit. Do not subject parts such as the air pressure
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 as
soon as possible. After use of liquid sealan t, make sure to repl ace the tire pressure
warning valve and transmitter when repairing or replacing the tire. (  P. 413)

516 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)One of the following may be the cause of the problem: ●
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle. ●
The engine may be flooded.
Try to restart the engine again follo wing correct starting procedures.
(  P. 207)●
There may be a malfunction in th e engine immobilizer system. (  P. 79)
One of the following may be the cause of the problem: ●
The battery may be discharged. (  P. 522)●
The battery terminal connections may be loose or corroded.
The engine starting system may be malfun ctioning due to an electrical problem
such as electronic key battery depletio n or a blown fuse. However, an interim
measure is available to start the engine. (  P. 517)If the engine will not start If the engine will not start even though correct starting procedures are being
followed (  P. 207), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not sound or sounds at a low volume.
The starter motor does not turn over

5177-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises One of the following may be the cause of the problem: ●
One or both of the battery terminals may be disconnected. ●
The battery may be discharged. (  P. 522)●
There may be a malfunction in the steering lock system.Contact your Lexus dealer if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the follo wing steps can be used as an interim
measure to start the engine if the engine switch is functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depressing the
brake pedal firmly.
Even if the engine can be started using the above steps, the system may be mal-
functioning. Have the vehicle in spected by your Lexus dealer.The starter motor does not turn ove r, the interior lights and headlights
do not turn on, or the horn does not sound.
Emergency start function 1
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518 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Use the mechanical key (  P. 141) in order to perfor m the following operations:■
Unlocking the door
Insert the mechanical key while
pulling on the driver’s door han-
dle.
Unlocking the door.
Remove the key, return the handle, and then pull the handle again.If the electronic key do es not operate properlyIf communication between the electron ic key and vehicle is interrupted (  P.
158) or the electronic key cannot be used because the battery is depleted,
the smart access system with push-butto n start and wireless remote control
cannot be used. In such cases, the doors and trunk can be opened and the
engine can be started by following the procedure below.
Locking and unlocking the doors and opening the trunk 1
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5197-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U) 7
When trouble arises ■
Locking the door
Move the inside lock button to the
lock position.
Close the door.■
Opening the trunk
Turn the mechanical key clockwise
to open. (  P. 81)■
Key linked functions
* : These settings must be cust omized at your Lexus dealer.1
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Locks both side door
Closes the windows and moon roof (if
equipped) (turn and hold)
*Unlocks the door
Turning the key rearward unlocks the driver’s
door. Turning the key again unlocks the other
door.
Opens the windows and moon roof (if
equipped) (turn and hold)
* 1
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520 7-2. Steps to take in an emergency
RC350_RC300 AWD_RC3 00_RC F_U(OM24748U)Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of the
electronic key to the engine switch. When the electronic key is detected, a
buzzer sounds and the engine switch
will turn to IGNITION ON mode.
When the smart access system with
push-button start is deactivated in cus-
tomization setting, the engine switch will
turn to ACCESSORY mode.
Firmly depress the brake pedal and check that is shown on the multi-
information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus dealer.■
Stopping the engine
Shift the shift lever to P and press the engine switch as you normally do when stopping
the engine. ■
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the electronic
key battery be replaced immediately when the battery is depleted. (  P. 427)■
Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is pressed.
(  P. 208) ■
When the electronic key does not work properly ●
Make sure that the smart access system wi th push-button start has not been deacti-
vated in the customization setting. If it is off, turn the function on.
(Customizable features:  P. 569)●
Check if battery-saving mode is set. If it is set, cancel the function. (  P. 158)Starting the engine 1
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