2015 LEXUS RX450h key

7805-2. Steps to take in an emergency
If you lose your keys New genuine Lexus keys can be made by your Lexus dealer using the other
keys and the key number stamped on your key number plate.

5
When trouble arises
7815-2. Steps to take in an emergency
If the electronic key do es not operate properly
Locking and unlocking the side doors and key linked functions
Use the mechanical key (  P. 5 2 )
in order to perform the following
operations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks the door Turning the key rearward unlocks
the driver's door. Turning the key
once again unlocks the other
doors.
Opens the windows and moon
roof (turn and hold)If communication between the electron ic key and vehicle is interrupted
(  P. 62) or the electronic key cannot be used because the battery is
depleted, the smart access system with push-button start and wireless
remote control cannot be used. In such cases, the doors can be opened and
the hybrid system can be started by following the procedure below.

7825-2. Steps to take in an emergency
Starting the hybrid system
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the
“POWER” switch. If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm will
sound to indicate that the start
function cannot detect the elec-
tronic key.
Press the “POWER” switch within 10 seconds of the buzzer
sounding, keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact your
Lexus dealer. STEP 1
STEP 2
STEP 3

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 )

5
When trouble arises
7855-2. Steps to take in an emergency
■
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.■
To prevent 12-volt battery discharge ●
Turn off the headlights and the audio sy stem while the hybrid system is off.●
Turn off any unnecessary electrical compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.■
When the 12-volt battery is removed or discharged ●
The power back door must be initialized.
(  P. 8 3 7 )●
The hybrid system may not start. (
 P. 6 6 8 )
●
Make sure that the key is not inside th e vehicle when recharging or replacing
the 12-volt battery. The key may be locked in the vehicle if the alarm is activated.
(  P. 1 2 8 ) Start the engine of the second vehicle. Increase the engine
speed slightly and maintain that level for approximately 5 min-
utes to recharge the 12-volt battery of your vehicle.
Open and close any of the doors of your vehicle with the
“POWER” switch off.
Maintain the engine sp eed of the second ve hicle and start the
hybrid system of your vehicle by turning the “POWER” switch
to ON mode.
Make sure the “READY” indicat or comes on. If the indicator
does not come on, contact your Lexus dealer.
Once the hybrid system has st arted, remove the jumper cables
in the exact reverse order from which they were connected.
Once the hybrid system starts, have the vehicle inspected at your
Lexus dealer as soon as possible. STEP 4
STEP 5
STEP 6
STEP 7
STEP 8

8276-2. Customization
6
Vehicle specifications Door lock ( 
P. 7 2 , 7 8 1 )Function Default
setting Custom-
ized
setting
Unlocking using a
key Driver's
door
unlocked
in one step,
all doors
unlocked
in two
steps All doors
unlocked
in one step — —
O — —
O
Speed-detecting
automatic door lock
function Off On O —
O —
O O
Shifting gears to
position other than
P locks all doors On Off O —
O —
O O
Shifting gears to P
unlocks all doors On Off O —
O —
O O
Opening driver's
door unlocks all
doors Off On O —
O —
O O

8316-2. Customization
6
Vehicle specifications Illumination( 
P. 582)Function Default
setting Custom-
ized
setting
Time elapsed before
the interior lights
turn off 15 seconds 7. 5 s e c -
onds
O —
O —
O O
30 sec-
onds
Time elapsed before
the exterior lights
turn off 15 seconds 7. 5 s e c -
onds
O —
O —
O O
30 sec-
onds
Operation when the
doors are unlocked On Off — — — — —
O
Operation after the
“POWER” switch
turned off On Off — — — — —
O
Operation when
you approach the
vehicle with the
electronic key on
your person On Off — — — — —
O
Wireless remote
control linked exte-
rior lights when the
surrounding area is
dark On Off — — — — —
O
Interior light control On Off O —
O —
O O
Exterior light control On Off O —
O —
O O
Shift lever lights On Off — — — — —
O

8346-2. Customization
Power windows ( 
P. 112)
Moon roof ( 
P. 115) Function Default
setting Custom-
ized
setting
Mechanical key
linked operation On Off — — — — —
O
Wireless remote
control linked open-
ing On Off — — — — —
O
Wireless remote
control linked open-
ing buzzer On Off — — — — —
O
Function Default
setting Custom-
ized
setting
Mechanical key
linked operation On Off — — — — —
O
Wireless remote
control linked open-
ing On Off — — — — —
O
Linked operation of
components when
door key is used Slide only Tilt only — — — — —
O
Linked operation of
components when
wireless remote
control is used Slide only Tilt only — — — — —
O