warning LEXUS RCF 2019 Repair Manual

150 3-2. Opening, closing and locking the doors and trunk
RC F_U WARNING ■
To prevent an accident
Observe the following precautions while driving the vehicle.
Failure to do so may result in a door open ing and an occupant being thrown out of the
vehicle, resulting in death or serious injury. ●
Ensure that both side doors ar e properly closed and locked.●
Do not pull the inside handle of the doors while driving.
The doors may be opened even if the inside lock buttons are in locked position. ■
Side window open/close function linked to door operation
Do not hold the upper edge of the side window when you close the door. Otherwise,
your fingers or hand may be caught in the window.

154 3-2. Opening, closing and locking the doors and trunk
RC F_U WARNING
Observe the following precautions.
Failure to do so may result in death or serious injury. ■
Before driving ●
Make sure that the trunk lid is fully closed. If the trunk lid is not fully closed, it may
open unexpectedly while driv ing and hit near-by objects or luggage in the trunk may
be thrown out, causing an accident. ●
Do not allow children to play in the trunk.
If a child is accidentally locked in the trun k, they could suffer from heat exhaustion,
suffocation or other injuries. ●
Do not allow a child to open or close the trunk lid.
Doing so may cause the trunk lid to open unexpectedly, or cause the child’s hands,
head, or neck to be caught by the closing trunk lid. ■
Important points while driving
Never let anyone sit in the trunk. In the even t of sudden braking or a collision, they are
susceptible to death or serious injury.

1553-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC F_U WARNING ■
Using the trunk
Observe the following precautions.
Failure to do so may cause parts of the body to be caught, resulting in serious injury.●
Remove any heavy loads, such as snow and ice, from the trunk lid before opening it.
Failure to do so may cause the trunk lid to suddenly shut again after it is opened.●
When opening or closing the trunk lid, thoroughly check to make sure the surround-
ing area is safe. ●
If anyone is in the vicinity, make sure they are safe and let them know that the trunk is
about to open or close. ●
Use caution when opening or closing the tr unk lid in windy weather as it may move
abruptly in strong wind. ●
On an incline it is more difficult to open or close the trunk lid th an on a level surface,
so beware of the trunk lid un expectedly opening or closin g by itself. Make sure that
the trunk lid is fully open and secure before using the trunk.
●
Do not attach any accessories other than genuine Lexus parts to the trunk lid. Such
additional weight on the trunk lid may cause the lid to suddenly shut again after it is
opened. ●
When opening the trunk lid, take care so that
it does not hit anyone in the face or any other
part of the body.
●
When closing the trunk li d, take extra care to
prevent your fingers etc. from being caught. ●
When closing the trunk lid, make sure to
press it lightly on its outer surface. If the trunk
handle is used to fully close the trunk lid, it
may result in hands or arms being caught.

1573-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC F_U ■
Alarms and warning indicators
An alarm sounds and warning messages are di splayed on the multi-information display
to protect against unexpected accidents or th eft of the vehicle resulting from erroneous
operation. When a warning me ssage is displayed, take appropriate measures based on
the displayed message. (  P. 460)
When only an alarm sounds, circumstances and correction procedures are as follows.
■
Battery-saving function
The battery-saving function w ill be activated in order to pr event the electronic key bat-
tery and the vehicle battery from being discharged while the vehicle is not in operation
for a long time. ●
In the following situations, the smart acce ss system with push-button start may take
some time to unlock the doors.
• The electronic key has been left within appr oximately 6 ft. (2 m) of the outside of the
vehicle for 10 minutes or longer.
• The smart access system with push-button st art has not been used for 5 days or lon-
ger. ●
If the smart access system with push-button start has not been used for 14 days or lon-
ger, the doors cannot be unlocked at the passe nger door. In this case, hold the driver’s
door handle, or use the wireless remote cont rol or mechanical key, to unlock the doors.Alarm Situation Correction procedure
Exterior alarm sounds
once for 5 seconds The trunk was closed while
the electronic key was still
inside the trunk and both
side doors were locked. Retrieve the electronic key
from the trunk and close
the trunk lid.
An attempt was made to
lock the vehicle while a
door was open. Close both side doors and
lock the doors again.
Interior alarm sounds con-
tinuously The engine switch was
turned to ACCESSORY
mode while the driver’s
door was open (or the
driver’s door was opened
while the engine switch
was in ACCESSORY
mode). Turn the engine switch off
and close the driver’s door.
The engine switch was
turned off while the driver’s
door was open. Close the driver’s door.

160 3-2. Opening, closing and locking the doors and trunk
RC F_U ■
When the vehicle is not driven for extended periods ●
To prevent theft of the vehicle, do not leave the electronic key within 6 ft. (2 m) of the
vehicle. ●
The smart access system wi th push-button start can be deactivated in advance.
(  P. 569)■
To operate the system properly ●
Make sure to carry the electr onic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when operating the system from the outside of the
vehicle.
Depending on the position and holding condit ion of the electronic key, the key may not
be detected correctly and the system may no t operate properly. (The alarm may go off
accidentally, or the door lock prev ention function may not operate.)●
Do not leave the electronic key inside the trunk.
The key confinement prevention function ma y not operate, depending on the location
of the key (close to a spare tire [if equipped], the inside edge of the trunk), conditions
(inside a metal bag, close to metallic obje cts) and the radio waves in the surrounding
area. (  P. 153)■
If the smart access system with push-button start does not operate properly ●
Locking and unlocking the d oors and opening the trunk:  P. 518●
Starting the engine:  P. 520■
Customization
Settings (e. g. smart access system with push-button start) can be changed.
(Customizable features:  P. 569)■
If the smart access system with push-button start has been deactivated in a customized
setting ●
Locking and unlocking the d oors and opening the trunk:
Use the wireless remote cont rol or mechanical key. (  P. 145, 151, 518)●
Starting the engine and changing engine switch modes:  P. 520●
Stopping the engine:  P. 207
WARNING ■
Caution regarding interference with electronic devices●
People with implantable cardiac pacema kers, cardiac resynchronization therapy-
pacemakers or implantable cardioverter de fibrillators should keep away from the
smart access system with push-button start antennas. (  P. 156)
The radio waves may affect the operation of such devices. If necessary, the entry
function can be disabled. Ask your Lexus dealer for details, such as the frequency of
radio waves and timing of the emitted radio waves. Then, consult your doctor to see if
you should disable the entry function. ●
Users of any electrical medical device ot her than implantable cardiac pacemakers,
cardiac resynchronization th erapy-pacemakers or implantable cardioverter defibril-
lators should consult the manufacturer of the device for information about its opera-
tion under the influence of radio waves.
Radio waves could have unexpected effects on the operation of such medical
devices.
Ask your Lexus dealer for details on disabling the entry function.

1633-3. Adjusting the seats
3
Operation of each component
RC F_U WARNING ■
When adjusting the seat position ●
Take care when adjusting the seat position to ensure that other passengers are not
injured by the moving seat. ●
Do not put your hands under the seat or near the moving parts to avoid injury.
Fingers or hands may become jammed in the se at mechanism.●
Make sure to leave enough space around the feet so they do not get stuck. ■
Seat adjustment
To reduce the risk of sliding under the lap be lt during a collision, do not recline the seat
more than necessary.
If the seat is too reclined, the lap belt may slide past the hips and apply restraint forces
directly to the abdomen, or your neck may contact the shou lder belt, increasing the risk
of death or serious injury in the event of an accident.
Adjustments should not be made while drivin g as the seat may unexpectedly move and
cause the driver to lose control of the vehicle. ■
Lever-operated “Front, Fold & Return” seat ●
Before operating the lever-operated “Front, Fold & Return” seat, ensure that any sur-
rounding passengers or objects will not contact the seat.●
Make sure the seatback is lo cked securely before driving.●
Never operate the lever-operated “Front, Fold & Return” seat while the vehicle is
moving. ■
Jam protection function
Do not use a hand, foot, or an y other part of your body to intentionally activate the jam
protection function.

1653-3. Adjusting the seats
3
Operation of each component
RC F_U WARNING
Observe the following precautions. Failure to do so may result in death or serious injury.■
When folding the re ar seatbacks down●
Do not fold the seatbacks down while driving. ●
Stop the vehicle on level ground, set the pa rking brake and shift the shift lever to P.●
Do not allow anyone to sit on a folded seatback or in the trunk while driving.●
Do not allow children to enter the trunk. ■
After returning the rear seat back to the upright position
●
Check that the seat belts are not twisted or caught in the seatback. ●
Make sure that the seatback is securely
locked in position by lightly pushing it back
and forth.
If the seatback is not securely locked, the red
marking will be visible on the seatback lock
release knob. Make sure that the red marking
is not visible.

170 3-3. Adjusting the seats
RC F_U ■
Cancelation procedure
Carry only the key you want to cance l and then close the driver’s door.
If 2 or more keys are in the vehicle, the driving position cannot be canceled
properly.
Turn the engine switch to IGNITION ON mode.
While pressing the “SET” button, pr ess and hold the door lock switch
(either lock or unlock) un til the buzzer sounds twice.If the button could not be canceled, the buzzer sounds contin uously for approxi-
mately 3 seconds.■
Recalling the driving position using the memory recall function●
Different driving positions can be registered for each electronic key. Therefore, the
driving position that is recalled may be di fferent depending on the key being carried.●
If a door other than the driver’s door is unlocked with the smart access system with
push-button start, the driving position cannot be recalled. In this case, press the driving
position button which has been set. ■
Customization
The unlock door settings of the memory recall function can be changed.
(Customizable features:  P. 569)
WARNING ■
Seat adjustment caution
Take care during seat adjustment so that th e seat does not strike the rear passenger or
squeeze your body against the steering wheel. 1
2

1733-3. Adjusting the seats
3
Operation of each component
RC F_U ■
Adjusting the height of the head restraints
■
Adjusting the rear seat head restraint
Always raise the head restraint one leve l from the stowed position when using.Make sure that the head restraints are adjusted
so that the center of the head restraint is closest
to the top of your ears.
WARNING ■
Head restraint precautions
Observe the following precautions regarding th e head restraints. Failure to do so may
result in death or serious injury. ●
Use the head restraints design ed for each respective seat.●
Adjust the head restraints to th e correct position at all times.●
After adjusting the head restraints, push down on them and make sure they are
locked in position. ●
Do not drive with the head restraints removed.

1753-4. Adjusting the steering wheel and mirrors
3
Operation of each component
RC F_U To sound the horn, press on or close to
the mark. ■
The steering wheel can be adjusted when (power type)
The engine switch is in ACCESSORY or IGNITION ON mode
* .
* : If the driver’s seat belt is fastened, the steering wheel can be adjusted regardless of
engine switch mode. ■
Automatic adjustment of the steering position (if equipped)
A desired steering position ca n be entered to memory and recalled automatically by the
driving position memory system. (  P. 166)■
Power easy access system (power type)
The steering wheel and driver’s seat move in accordance with engine switch mode and
the driver’s seat belt condition. (  P. 166)Horn
WARNING ■
Caution while driving
Do not adjust the steeri ng wheel while driving.
Doing so may cause the driver to mishandle the vehicle and cause an accident, result-
ing in death or serious injury. ■
After adjusting the steering wheel (manual type)
Make sure that the steering wheel is securely locked.
Otherwise, the steering wheel may move su ddenly, possibly causing an accident, and
resulting in death or serious injury. Also, th e horn may not sound if the steering wheel is
not securely locked.