alarm LEXUS RC350 2015 User Guide

1473-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC350/RCF_U (OM24636U)
■Alarms and warning indicators
An alarm sounds and warning messages are displayed on the multi-information display
to protect against unexpected accidents or theft of the vehicle resulting from erroneous
operation. When a warning message is disp layed, take appropriate measures based on
the displayed message. ( P. 5 3 9 )
When only an alarm sounds, circumstances and correction procedures are as follows.
■Battery-saving function
The battery-saving function will be activated in order to prevent 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 access system with push-button start may take
some time to unlock the doors.
• The electronic key has been left within approximately 6 ft. (2 m) of the outside of the
vehicle for 10 minutes or longer.
• The smart access system with push-butto n start has not been used for 5 days or
longer.
●If the smart access system with push-butto n start has not been used for 14 days or
longer, the doors cannot be unlocked at the passenger door. In this case, hold the
driver’s door handle, or use the wireless re mote control or mechanical key, to unlock
the doors.
AlarmSituationCorrection 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.

1493-2. Opening, closing and locking the doors and trunk
3
Operation of each component
RC350/RCF_U (OM24636U)
■Note for the entry function
●Even when the electronic key is within the effective range (detection areas), the system
may not operate properly in the following cases:
• The electronic key is too close to the window or outside door handle, near the
ground, or in a high place when the doors are locked or unlocked.
• The electronic key is near the ground or in a high place, or too close to the rear
bumper center when the trunk is opened.
• The electronic key is on the instrument pa nel, rear package tray or floor, or in the
door pockets or glove box when the engine is started or engine switch modes are
changed.
●Do not leave the electronic key on top of th e instrument panel or near the door pockets
when exiting the vehicle. Depending on the radio wave reception conditions, it may be
detected by the antenna outside the cabin and the doors will become lockable from the
outside, possibly trapping the el ectronic key inside the vehicle.
●As long as the electronic key is within the effective range, the doors may be locked or
unlocked by anyone. However, only the door s detecting the electronic key can be used
to unlock the vehicle.
●Even if the electronic key is not inside the vehicle, it may be possible to start the engine
if the electronic key is near the window.
●The doors may unlock or lock if a large amou nt of water splashes on the door handle,
such as in the rain or in a car wash, when th e electronic key is within the effective range.
(The doors will automatically be locked after approximately 60 seconds if the doors
are not opened and closed.)
●If the wireless remote control is used to lo ck the doors when the electronic key is near
the vehicle, there is a possibility that the door may not be unlocked by the entry func-
tion. (Use the wireless remote control to unlock the doors.)
●Touching the door lock or unlock sensor while wearing gloves may prevent lock or
unlock operation.
●When the lock operation is performed using the lock sensor, recognition signals will be
shown up to two consecutive times. After this, no recognition signals will be given.
●If the door handle becomes wet while the el ectronic key is within the effective range,
the door may lock and unlock repeatedly. In this case, follow the following correction
procedures to wash the vehicle:
• Place the electronic key in a location 6 ft. (2 m) or more away from the vehicle. (Take
care to ensure that the key is not stolen.)
• Set the electronic key to battery-saving mode to disable the smart access system with push-button start. ( P. 1 4 8 )
●If the electronic key is insi de the vehicle and a door handle becomes wet during a car
wash, a message may be shown on the mult i-information display and a buzzer will
sound outside the vehicle. To turn off the alarm, lock both side doors.
●The lock sensor may not work properly if it comes into contact with ice, snow, mud, etc.
Clean the lock sensor and attempt to operate it again.
●A sudden handle operation or a handle operation immediately after entering the effec-
tive range may prevent the doors from bein g unlocked. Touch the door unlock sensor
and check that the doors are unlocked before pulling the door handle again.
●Unlocking the vehicle may take more time if another electronic key is within the effec-
tive range.

1503-2. Opening, closing and locking the doors and trunk
RC350/RCF_U (OM24636U)
■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 with push-button start can be deactivated in advance.
(  P. 6 3 5 )
■To operate the system properly
●Make sure to carry the electronic key when operating the system. Do not get the elec-
tronic key too close to the vehicle when op erating 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 objects) and the radio waves in the surrounding
area. ( P. 1 4 3 )
■If the smart access system with push-button start does not operate properly
●Locking and unlocking the d oors and opening the trunk: P. 5 9 0
●Starting the engine:  P. 5 9 2
■Customization
Settings (e. g. smart access system with push-button start) can be changed.
(Customizable features: P. 6 3 5 )
■If the smart access system with push-butto n start has been deactivated in a customized
setting
●Locking and unlocking the d oors and opening the trunk:
Use the wireless remote control or mechanical key. ( P. 135, 141, 590)
●Starting the engine and changing engine switch modes: P. 5 9 2
●Stopping the engine: P. 1 9 3

2964-5. Using the driving support systems
RC350/RCF_U (OM24636U)
WA R N I N G
■Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre- collision system is intended to assist the
driver in avoiding collisions through the process of LOOK-JUDGE-ACT. There are
limits to the degree of assistance the system can provide, so please keep in mind the
following important points.
●Assisting the driver in watching the road
The pre-collision system is only able to detect obstacles directly in front of the vehicle,
and only within a limited range. It is not a mechanism that allows careless or inatten-
tive driving, and it is not a system that can assist the driver in low-visibility conditions. It
is still necessary for the driver to pay cl ose attention to the vehicle’s surroundings.
●Assisting the driver in making correct judgment
When attempting to estimate the possibility of a collision, the only data available to
the pre-collision system is that from obstacle s it has detected directly in front of the
vehicle. Therefore, it is absolutely necess ary for the driver to remain vigilant and to
determine whether or not there is a possib ility of collision in any given situation.
●Assisting the driver in taking action
The pre-collision brake assist function of th e pre-collision safety system is designed to
help reduce the severity of a collision, an d will only operate when the system deter-
mines that a collision is unavoidable. Withou t proper input from the driver, this system
is not capable of avoiding a collision or brin ging the vehicle to a stop safely. For this
reason, when encountering a dangerous situation the driver must take direct and
immediate action in order to ensu re the safety of all involved.

5958-2. Steps to take in an emergency
8
When trouble arises
RC350/RCF_U (OM24636U)
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Lexus dealer as soon
as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is not
in use, due to natural discharg e and the draining effects of certain electrical appliances. If
the vehicle is left for a long time, the battery may discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●Make sure that the key is not inside the vehicle when recharging or replacing the bat-
tery. The key may be locked in the vehicle if the alarm is activated. ( P. 7 9 )
●In some cases, it may not be possible to unlock the doors using the smart access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery discharged, be
especially careful when reconnecting the battery.
7

6409-2. Customization
RC350/RCF_U (OM24636U)
■Smart access system with push-button start ( P. 135, 141, 146)
■Wireless remote control ( P. 130, 135, 141)
■Driving position memory* ( P. 1 5 7 )
*: If equipped
■Steering wheel ( P. 1 6 4 )
*:If equipped
FunctionDefault settingCustomized setting
Smart access system with
push-button startOnOff——O
Smart door unlockingDriver’s doorBoth side doorsO—O
Number of consecutive
door lock operations2 timesAs many as desired——O
123
FunctionDefault settingCustomized setting
Wireless remote controlOnOff——O
Unlocking operation
Driver’s door
unlocked in one step, both side
doors unlocked in two steps
Both side doors
unlocked in one
stepO—O
Trunk unlocking operationPress and hold (short)
One short press
——O
Push twice
Press and hold (long)
Off
Alarm (panic mode)OnOff——O
123
FunctionDefault settingCustomized setting
Selecting the door linking
driving position memory
with door unlock operation
Driver’s doorBoth side doors——O
123
FunctionDefault settingCustomized setting
Auto tilt away function*OnOff——O
123

662What to do if... (Troubleshooting)
RC350/RCF_U (OM24636U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( P. 5 3 4 )
●The parking brake indicator is on
Is the parking brake released? ( P. 2 0 5 )
Depending on the situation, other type s of warning buzzer may also sound.
( P. 533, 539)

●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 7 8 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. ( P. 5 3 9 )
●When a warning light turns on or a warning message is displayed, refer to
P. 533, 539. A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed

665Alphabetical index
RC350/RCF_U (OM24636U)
Alarm ............................................................ 78
Anchor brackets ...................................... 59
Antennas (smart access system with push-button start) ......................146
Anti-lock Brake System (ABS)....... 282 Warning light ...................................... 533
Approach warning............................... 238
Armrest .................................................... 437
ASC (Active Sound Control).......206, 207
Assist grip ................................................ 439
Audio input.............................................. 330
Audio system.......................................... 322 Audio input........................................... 330
AUX port/USB port....................... 330
Bluetooth
® audio...............................376
CD player ..............................................352
iPod .......................................................... 359
MP3/WMA/AAC disc .................352
Optimal use ..........................................339
Portable music player ......................367
Radio ........................................................346
Steering wheel audio switch ........ 327
USB memory .......................................363 Automatic headlight leveling
system ...................................................... 210 Warning light ....................................... 534
Automatic High Beam ...........................211
Automatic light control system ...... 208
Automatic transmission....................... 199 If the shift lever cannot be shifted from P ........... 589
M mode .................................................. 202
Paddle shift switches..............201, 202
AUX port ................................................ 330
Average fuel economy ............... 106, 112
Average vehicle speed............... 106, 112

680Alphabetical index
RC350/RCF_U (OM24636U)
Tachometer .......................................90, 96Variable red zone................................. 101
Tail lights...................................................208 Light switch .......................................... 208
Replacing light bulbs ......................... 519
Talk switch
*............................................388
Telephone switches
*..........................388
Theft deterrent system Alarm........................................................... 78
Engine immobilizer system.............. 76
Luggage security system .................142
Theft prevention labels ...................... 80
Tire inflation pressure .........................500 Maintenance data ............................... 614
Tire inflation pressure display function ................................................492
Warning light ...................................... 535
Tire information ..................................... 623 Glossary ................................................ 630
Size ............................................................626
Tire identification number..............625
Uniform Tire Quality Grading.............................................. 628 Tire pressure warning system ..........492
Initializing ............................................... 492
Installing tire pressure warning valves and transmitters................ 492
Registering ID codes ....................... 493
Tire pressure warning reset switch ................................................... 493
Warning light .......................................535
Tires ............................................................. 491 Chains .......................................................316
Checking .................................................491
Emergency tire puncture repair kit .............................................. 574
If you have a flat tire ............. 560, 574
Inflation pressure..................................614
Information............................................ 623
Replacing .............................................. 560
Rotating tires ..........................................491
Size .............................................................614
Snow tires ................................................ 317
Spare tire............................................... 560
Tire inflation pressure display function................................................ 492
Tire pressure warning system ..... 492
Warning light .......................................535
T