2015 LEXUS RX350 key

7945-2. Steps to take in an emergency
Starting the engine
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the
“ENGINE START STOP” 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 “ENGINE START STOP” switch within 10 seconds of
the buzzer sounding, keeping the brake pedal depressed.
In the event that the “ENGINE START STOP” switch still cannot be oper-
ated, contact your Lexus dealer. STEP 1
STEP 2
STEP 3

5
When trouble arises
7955-2. Steps to take in an emergency
■
Stopping the engine
Shift the shift lever to P and press the “ENGINE START STOP” switch as you nor-
mally do when stopping the engine.■
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. 7 0 1 )■
Changing “ENGINE START STOP” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
“ENGINE START STOP” switch.
The engine does not start and modes will be changed each time the switch is
pressed. (  P. 166)

5
When trouble arises
7975-2. Steps to take in an emergency
■
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 compon ents when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.■
When the battery is removed or discharged ●
The power back door must be initialized.
(  P. 8 4 7 )●
Make sure that the key is not inside th e vehicle when recharging or replacing
the battery. The key may be locked in the vehicle if the alarm is activated.
(  P. 114)■
Charging the battery
The electricity stored in the battery will discharge gradually even when the vehi-
cle is not in use, due to natural discharge and the draining effects of certain
electrical appliances. If the vehicle is left for a long time, the battery may dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically during driving.) Start the engine of the second vehicle. Increase the engine
speed slightly and maintain that level for approximately 5 min-
utes to recharge the battery of your vehicle.
Open and close any of the do ors with the “ENGINE START
STOP” switch off.
Maintain the engine sp eed of the second ve hicle and start the
engine of your vehicle by tu rning the “ENGINE START STOP”
switch to IGNITION ON mode.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er from which they were con-
nected.
Once the engine starts, have th e vehicle inspected at your Lexus
dealer as soon as possible. STEP 3
STEP 4
STEP 5
STEP 6

8376-2. Customization
6
Vehicle specifications Door lock ( 
P. 52, 793)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

8416-2. Customization
6
Vehicle specifications Illumination( 
P. 595)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
“ENGINE START
STOP” 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

8446-2. Customization
Power windows ( 
P. 98)
Moon roof ( 
P. 1 0 1 ) 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

872Alphabetical index
Card key ......................................................30
Care
Exterior .................................................. 650
Interior .....................................................653
Seat belts................................................654
Cargo capacity ....................................... 301
Cargo hooks ........................................... 627
CD changer
CD ................................................383, 492
MP3 .............................................. 384, 501
WMA disc.................................. 384, 501
CD player .................................... 383, 492
Chains .......................................................302
Child restraint system
Booster seats, definition ................... 137
Booster seats, installation ..................141
Convertible seats, definition .......... 137
Convertible seats, installation..........141
Front passenger occupant
classification system........................ 132
Infant seats, definition......................... 137
Infant seats, installation ........................141
Installing CRS with LATCH
system .................................................... 142
Installing CRS with seat belts......... 144
Installing CRS with top tether
straps ..................................................... 148
Child safety
Airbag precautions............................. 127
Back door precautions...................... 62
Battery
precautions ...........................682, 796
Child restraint system........................ 137
Child-protectors ................................... 53
How your child should wear
the seat belt .......................................... 85 Installing child restraints ..................... 141
Moon roof precautions .................... 104
Power window lock switch ............. 98
Power window precautions...........100
Removed electron ic key battery
precautions ........................................702
Seat belt extender precautions ..... 89
Seat belt precautions.......................... 86
Seat heater precautions................... 621
Child-protectors...................................... 53
Cleaning
Exterior ................................................... 650
Interior..................................................... 653
Seat belts ............................................... 654
Clock* .......................................................... 611
Coat hooks.............................................. 623
Coin holder ............................................. 606
Compass .................................................. 638
Condenser .............................................. 678
Console box ........................................... 604
Coolant
Engine coolant..................................... 677
Cooling system
Engine overheating .......................... 799
Cornering assist sensors ................... 245
Cruise control
Cruise control ...................................... 227
Dynamic radar cruise control......232
Cup holders ............................................. 601
Curtain shield airbags ........................... 119
Customizable features ....................... 834C

873Alphabetical index
Daytime running light system............ 213
Defogger*
Rear window.......................................... 361
Side mirrors............................................ 361
Dimensions ............................................. 806
Dinghy towing ....................................... 323
Display
Multi-information display............... 200
Trip information .................................. 203
Warning message ............................ 754
Do-it-yourself maintenance..............664
Door courtesy lights
Door courtesy lights ........................ 595
Wattage ................................................... 817
Door lock
Back door ................................................ 56
Side door ...................................................52
Wireless remote control....................49
Door pockets ......................................... 600
Doors
Back door ................................................ 56
Door lock ................................35, 49, 52
Door windows ....................................... 98
Power back door ................................. 56
Side door ...................................................52
Side mirrors............................................. 95
Driver's seat belt reminder light ..... 747
Driving
Break-in tips ...........................................155
Correct posture ..................................... 117
Procedures ............................................. 154
Utility vehicle
precautions ........................................292
Winter driving tips ............................ 302
Driving position memory ...................... 76 Electric power steering ...................... 269
Electronic features control .............. 200
Electronic key
If the electronic key does not
operate properly ............................ 793
Emergency flashers
Switch....................................................... 734
Emergency, in case of
If a warning buzzer sounds........... 744
If a warning light turns on............... 744
If a warning message is
displayed............................................. 754
If the back door opener is
inoperative ..............................................61
If the electronic key does not
operate properly ............................ 793
If the engine will not start............... 789
If the shift lever cannot be
shifted from P .....................................791
If the vehicle has a discharged
battery ..................................................796
If you have a flat tire ......................... 774
If you lose your keys ......................... 792
If you think something is
wrong ................................................... 742
If your vehicle becomes stuck .... 802
If your vehicle has to be
stopped in an emergency ......... 804
If your vehicle needs to be
towed....................................................735
If your vehicle overheats ................799D E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.