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115
1
Before driving
RX350/270_EE
1-6. Theft deterrent system
Engine immobilizer system
The vehicle's keys have built-in transponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
This system is designed to help prevent vehicle theft but does not guaran-
tee absolute security against all vehicle thefts.
Vehicles with a navigation system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.
Vehicles without a navigation system
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned off to
indicate that the system is oper-
ating.
The indicator light stops flashing
after the “ENGINE START
STOP” switch has been turned
to ACCESSORY or IGNITION
ON mode to indicate that the
system has been canceled.
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116
1-6. Theft deterrent system
RX350/270_EE
■System maintenance
The vehicle has a maintenance-free type engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
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125
1-6. Theft deterrent system
1
Before driving
RX350/270_EE
■Triggering of the alarm
The alarm may be triggered in the following situations:
(Stopping the alarm deactivates the alarm system.)
■Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
●The doors are unlocked using the
mechanical key.
●A person inside the vehicle opens a door
or the hood.
●The battery is disconnected.
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126
1-6. Theft deterrent system
RX350/270_EE
■Canceling and automatic re-enabling of the intrusion sensor and tilt sensor
●The alarm will still be set even when the intrusion sensor and tilt sensor are can-
celed.
●After the intrusion sensor and tilt sensor are canceled, pressing the “ENGINE
START STOP” switch or unlocking the doors using the entry function, wireless
remote control or mechanical key will re-enable the intrusion sensor and tilt
sensor.
●When the alarm system is set again, the intrusion sensor and tilt sensor will be
set.
■Intrusion sensor considerations
The sensor may trigger the alarm in the following situations:
●Persons or pets are in the vehicle.
●A window or the moon roof is open.
In this case, the sensor may detect the
following:
• Wind or the movement of objects
such as leaves and insects inside the
vehicle
• Ultrasonic waves emitted from
devices such as the intrusion sensors
of other vehicles
• The movement of people outside the
vehicle
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145
1-7. Safety information
1
Before driving
RX350/270_EEKey of letters inserted in the above table:
U: Suitable for “universal” category child restraint system approved for
use in this mass group.
UF: Suitable for forward-facing “universal” category child restraint sys-
tem approved for use in this mass group.
L: Suitable for child restraint system shows in child restraint system list.
X: Not suitable seat position for children in this mass group.
*1: Adjust the front seatback to the most upright position. Move the front seat to
the rearmost position.
If the head restraint interferes with your child restraint system, and the head
restraint can be removed, remove the head restraint.
If the passenger seat is equipped with a vertical height adjuster, it must be
placed in the uppermost position.
Follow these procedures:
• For installing a baby seat with support base
If the baby seat interferes with the seatback when latching the baby seat
into the support base, adjust the seatback rearward until there is no inter-
ference.
• For installing a forward-facing child seat
If there is gap between the child seat and the seatback, tilt the seatback
rearward until good contact is achieved.
If the seat belt shoulder anchor is ahead of the child seat belt guide, move
the seat cushion forward.
• For installing a junior seat
If the child in your child restraint system is in a very upright position, adjust
the seatback to the most comfortable position.
If the seat belt shoulder anchor is ahead of the child seat belt guide, move
the seat cushion forward.
*
2: If the head restraint interferes with your child restraint system, and the head
restraint can be removed, remove the head restraint.
The child restraint system mentioned in the table may not be available
outside of the EU area.
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148
1-7. Safety information
RX350/270_EEKey of letters inserted in the above table:
IUF: Suitable for ISOFIX forward-facing child restraint systems of uni-
versal category approved for use in this mass group.
IL: Suitable for child restraint system shows in ISOFIX child restraint
system list.
When using a “LEXUS MINI” or “LEXUS MIDI”, adjust the support leg
and ISOFIX connectors as follows:
Lock the ISOFIX connectors
where numbers 4 and 5 can be
seen.
Lock the support leg where 3rd
hole can be seen.
X: ISOFIX position not suitable for ISOFIX child restraint systems in
this mass group and/or this size class.
*: If the head restraint interferes with your child restraint system, and the head
restraint can be removed, remove the head restraint.
The child restraint system mentioned in the table may not be available
outside of the EU area.
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164
1-7. Safety information
RX350/270_EE
Deactivating the front seat passenger airbag and front passenger side airbag
Vehicles with a navigation system
Insert the mechanical key into the
cylinder and rotate to the “OFF”
position.
The “OFF” indicator light turns on
(only when the “ENGINE START
STOP” switch is in IGNITION ON
mode).
Vehicles without a navigation system
Insert the mechanical key into the
cylinder and rotate to the “OFF”
position.
The “OFF” indicator light turns on
(only when the “ENGINE START
STOP” switch is in IGNITION ON
mode).
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168
RX350/270_EE
2-1. Driving procedures
Driving the vehicle
The following procedures should be observed to ensure safe driving.
■Starting the engine
→P. 1 8 0
■Driving
With the brake pedal depressed, shift the shift lever to D.
(→P. 1 8 6 )
Release the parking brake. (→P. 1 9 4 )
Gradually release the brake pedal and gently depress the
accelerator pedal to accelerate the vehicle.
■Stopping
With the shift lever in D, depress the brake pedal.
If necessary, set the parking brake.
If the vehicle is to be stopped for an extended period of time, shift the
shift lever to P or N. (
→P. 1 8 6)
■Parking the vehicle
With the shift lever in D, depress the brake pedal.
Set the parking brake. (→P. 1 9 4 )
Shift the shift lever to P. (→P. 1 8 6 )
If parking on a hill, block the wheels as needed.
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
STEP1
STEP2
STEP3
STEP1
STEP2
STEP1
STEP2
STEP3
STEP4
STEP5
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