2015 LEXUS RX450h change key battery

661-3. Opening, closing and locking the doors
■
When the electronic key battery is fully depleted
 P. 6 8 7■
Customization
Settings (e.g. smart access system with push-button start) can be changed.
(Customizable features  P. 825)■
Certification for the smart access system with push-button start
This system meets the certification requirements of Radio Law.
For vehicles sold in Hawaii, Guam, Saipan and Puerto Rico
FCC ID: NI4TMLF8-6
FCC ID: HYQ14ACX
FCC ID: HYQ14AEB
FCC ID: HYQ13CZF
NOTE:
This device complies with part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment.

711-3. Opening, closing and locking the doors
1
Before driving ■
Reversing the operation of the power back door
Pressing the wireless remote control switch again while the power back door is
operating will cause the operation to reverse.■
Wireless remote control operation while the power back door is closing
If the wireless remote control is used to lock the doors while the power back door is
closing, the doors will lock after the power back door has completely closed. To
prevent locking the keys inside the vehicle, do not place the electric key inside the
vehicle while the power back door is closing.■
Conditions affecting operation
 P. 6 2■
If the wireless remote control does not operate properly
Locking and unlocking the doors: Use the mechanical key. (  P. 7 8 1 )■
Electronic key battery depletion
 P. 6 5■
When the electronic key battery is fully depleted
 P. 6 8 7■
Customization
Settings (e.g. door unlocking function) can be changed.
(Customizable features  P. 825)

1141-5. Opening and closing the windows and moon roof
■
Door lock linked window operation ●
The power windows can be opened and closed using the mechanical key.
(  P. 7 8 1 )●
The power windows can be opened using the wireless remote control.
(  P. 6 9 )■
When the 12-volt battery is disconnected
The window lock switch is disabled. If necessary, press the window lock switch after
reconnecting the battery.■
Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features  P. 825)
CAUTION■
Closing the windows
Observe the following precautions.
Failing to do so may result in death or serious injury. ●
Check to make sure that all passengers do not have any part of their body in a
position where it could be caught when a window is being operated.●
Do not allow children to operate the power windows.
Closing a power window on someone can cause death or serious injury.
The driver is responsible for instructin g children not to operate the power win-
dows.■
Jam protection function ●
Never use any part of your body to intent ionally activate the jam protection func-
tion.●
The jam protection function may not work if something gets caught just before
the window fully closes. Also, the jam protection does not operate when the
power window switch is pulled up continually to close the windows.

1792-1. Driving procedures
2
When driving When stopping the hybrid system with the shift lever in a position other than P
If the hybrid system is stopped with the shift lever in a position other than
P, the “POWER” switch will not be turned off but instead be turned to
ACCESSORY mode. Perform the following procedure to turn the switch
off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that the indicator on the “POWER” switch is illuminated in
amber and then press the “POWER” switch once.
Check that the indicator on the “POWER” switch is off.■
Auto power off function
When the shift lever is in P, if the vehicle is left in ACCESSORY or ON mode with
the hybrid system not operating for more than 20 minutes (ACCESSORY mode)
or one hour (ON mode), the “POWER” switch will automatically turn off. However,
this function cannot entirely prevent 12-v olt battery discharge. Do not leave the
vehicle with the “POWER” switch in ACCESSORY or ON mode for long periods
of time when the hybrid system is not operating.■
Operation of the “POWER” switch
When operating the “POWER” switch, one short, firm press is enough. If the switch
is pressed improperly, the hybrid system may not start or the “POWER” switch
mode may not change. It is not necessary to press and hold the switch.■
Sounds and vibrations specific to a hybrid vehicle
 P. 3 3■
Electronic key battery depletion
 P. 6 5
■
When the ambient temperature is low, such as during winter driving conditions
It may take time until the “READY” indicator comes on.
■
Conditions affecting operation
 P. 6 2STEP 1
STEP 2
STEP 3
STEP 4

2202-3. Operating the lights and windshield wipers
■
Automatic light off system ●
When the headlights are on: The headlights and tail lights turn off 30 seconds
after a door is opened and closed if the “POWER” switch is turned to ACCES-
SORY mode or turned off. (The lights turn off immediately if on the key is
pressed after all the doors are locked.)●
When only the tail lights ar e on: The tail lights turn off automatically if the
“POWER” switch is turned to ACCESSORY mode or turned off and the
driver’s door is opened.
To turn the lights on again, turn the “POWER” switch to ON mode, or turn the light
switch off once and then back to or .
If any of the doors is kept open, the ligh ts automatically turn off after 20 minutes.■
Automatic headlight leveling system (if equipped)
The level of the headlights is automatica lly adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users. ■
Light reminder buzzer (headlights)
A buzzer sounds when the “POWER” switch is turned off or turned to ACCES-
SORY mode and the driver's door is open ed while the headlights are turned on.■
Illuminated entry system
If the wireless remote control switch is used to unlock the vehicle when the light
switch is in and the surrounding area is dark, the parking light turns on.■
Customization
Settings (e.g. light sensor sensitivity) can be changed.
(Customizable features  P. 825)
NOTICE■
To prevent 12-volt battery discharge
Do not leave the lights on longer than necessary when the hybrid system is off.

5843-5. Using the interior lights
■
Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode, the pres-
ence of the electronic key, whether the doors are locked/unlocked, and whether
the doors are open/closed.■
To prevent 12-volt battery discharge
When the “POWER” switch is turned off, the lights will go off automatically after 20
minutes. ●
Personal lights●
Interior lights●
Door courtesy lights●
Scuff lights (if equipped)●
Footwell lights■
Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features  P. 825) Interior lights and personal lights

5
When trouble arises
7835-2. Steps to take in an emergency
■
Stopping the hybrid system
Shift the shift lever to P and press the “POWER” switch as you normally do when
stopping the hybrid system.■
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted.
(  P. 6 8 7 )■
Changing “POWER” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“POWER” switch.
The hybrid system does not start and modes will be changed each time the switch is
pressed. (  P. 1 7 8 )

862Alphabetical index
Card key ....................................................... 51
Care
Exterior ................................................... 634
Interior ..................................................... 637
Seat belts................................................638
Cargo capacity ....................................... 301
Cargo hooks ............................................ 612
CD changer
CD ...............................................380, 485
MP3 .............................................. 381, 493
WMA disc.................................. 381, 493
CD player ................................... 380, 485
Chains .......................................................302
Child restraint system
Booster seats, definition .................. 150
Booster seats, installation ................154
Convertible seats, definition ......... 150
Convertible seats, installation........154
Front passenger occupant
classification system........................145
Infant seats, definition........................ 150
Infant seats, installation ......................154
Installing CRS with LATCH
system ................................................... 155
Installing CRS with seat belts......... 157
Installing CRS with top tether
straps ....................................................... 161
Child safety
Airbag precautions............................ 140
Back door prec autions......................80
Child restraint system....................... 150
Child-protectors ....................................73
How your child should wear
the seat belt .......................................... 101
Installing child restraints ...................154 Moon roof precautions ......................118
Power window lock switch .............. 112
Power window precautions............. 114
Removed electron ic key battery
precautions .......................................688
Seat belt extender precautions .... 104
Seat belt precautions......................... 102
Seat heater precautions................. 605
12-volt battery
precautions ...........................668, 784
Child-protectors...................................... 73
Cleaning
Exterior ................................................... 634
Interior......................................................637
Seat belts ............................................... 638
Clock* ....................................................... 597
Coat hooks..............................................608
Coin holder ............................................. 592
Compass .................................................. 622
Condenser ................................................661
Console box ...........................................590
Coolant
Engine coolant.................................... 659
Power control unit coolant........... 659
Cooling system
Hybrid system ov erheating.......... 788
Cornering assist sensors ................... 248
Cruise control
Cruise control ...................................... 232
Dynamic radar cruise control ......236
Cup holders ............................................588
Curtain shield airbags ..........................132
Customizable features ....................... 825C