2015 LEXUS RX450h ECO mode

7625-2. Steps to take in an emergency
Sounds
once 
(Flashes) The driver's door
was opened and
closed with the
“POWER” switch
turned off and
then the
“POWER” switch
was put in
ACCESSORY
mode twice with-
out the hybrid sys-
tem being started. Press the
“POWER” switch
while depressing
the brake pedal.
During an hybrid
system starting
procedure in the
event that the
electronic key was
not functioning
properly
(  P. 7 8 2 ) , t h e
“POWER” switch
was touched with
the electronic key. Press the
“POWER” switch
within 10 seconds
of the buzzer
sounding.
Sounds
once 
(Flashes) The steering lock
could not be
released within 3
seconds of the
“POWER” switch
being pressed. Press the
“POWER” switch
while depressing
the brake pedal
and moving the
steering wheel left
and right.Interior
buzzer Exterior
buzzer Wa r n i n g m e s s a g e Details Correction
procedure

7785-2. Steps to take in an emergency
Emergency start function
When the hybrid system does not start, the following steps can be used as
an interim measure to start the hybr id system if the “POWER” switch is
functioning normally:
Set the parking brake.
Shift the shift lever to P.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” swit ch for about 15 seconds while
depressing the brake pedal firmly.
Even if the hybrid system can be star ted using the above steps, the system
may be malfunctioning. Have the vehi cle inspected by your Lexus dealer.STEP 1
STEP 2
STEP 3
STEP 4

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

8226-1. Specifications
Tire related term Meaning
Intended outboard side-
wall (a) The sidewall that contains a whitewall, bears
white lettering, or bear s manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other side-
wall of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles
Load rating The maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load rating The load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible
inflation pressure The maximum cold inflation pressure to which a tire
may be inflated
Measuring rim The rim on which a tire is fitted for physical dimension
requirements
Open splice Any parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameter The overall diameter of an inflated new tire
Overall width The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10,000 lb. or
less.
Ply A layer of rubber-coated parallel cords

8336-2. Customization
6
Vehicle specifications Driving position memory ( 
P. 9 3 )
Meter (  P. 1 9 7 )Function Default
setting Custom-
ized
setting
Driver’s seat move-
ment when exiting
the vehicle (on some
models) Full Off
O —
O —
O O
Pa r t i a l
Selecting whether
the driver’s door or
all doors are linked
to the power easy
access system Driver’s
door All the
doors — — — — —
O
Function Default
setting Custom-
ized
setting
ECO lamp On
(Turns on/
off accord-
ing to driv-
ing
conditions) On
(Stays on) —
O —
O O O
Off
(Stays off)
SPORT lamp On Off —
O —
O O O

864Alphabetical index
Engine
Accessory mode ................................. 177
Compartment .....................................654
Hood......................................................... 651
How to start the hybrid
system .................................................... 177
Identification number....................... 799
If the hybrid system will
not start ................................................777
Ignition switch........................................ 177
Overheating.........................................788
“POWER” switch ................................ 177
Engine compartment cover .............655
Engine coolant
Capacity ................................................ 804
Checking ...............................................659
Preparing and checking
before winter .................................... 302
Engine coolant temperature
gauge....................................................... 197
Engine oil
Capacity .................................................802
Checking ...............................................656
Preparing and checking
before winter .................................... 302
EPS ...............................................................271
EV drive mode ........................................ 183
Event data recorder ............................... 25 Floor mat ................................................... 610
Fluid
Brake .......................................................806
Washer................................................... 663
Fog lights
Replacing light bulbs ....................... 708
Switch .........................................................221
Wattage .................................................809
Footwell light .......................................... 582
Front fog lights
Replacing light bulbs ....................... 708
Switch .........................................................221
Wattage .................................................809
Front passenger occupant
classification system ...........................145
Front passenger's seat belt
reminder light ..................................... 736
Front seats
Adjustment .............................................. 86
Driving position memory ..................93
Flattening seatbacks ............................87
Front side marker lights
Replacing light bulbs ....................... 708
Front turn signal lights
Replacing light bulbs ....................... 708
Wattage .................................................809F

870Alphabetical index
Spare tire
Inflation pressure................................807
Storage location ................................. 764
Spark plug ............................................... 804
Specifications .........................................798
Speedometer........................................... 197
Steering
Column lock release ........................ 180
Steering wheel
Adjustment............................................. 105
Audio switches* ..................... 426, 543
Heated steering wheel....................604
Power easy access system .............. 95
Steering wheel position
memory.................................................. 93
Storage feature..................................... 585
Stuck vehicle
If your vehicle becomes stuck..... 793
Sun visors .................................................595
Sunshades ................................................... 116 Switch
Display contrast adjustment
switch ......................................................212
Display position adjustment
switch ......................................................212
Driving mode selector switch.......188
Emergency flasher switch.............. 724
ENTER switch .................................... 206
Fog light switch .....................................221
Hazard light switch ........................... 724
Head-up display main switch ........212
Heated steering wheel switch .... 604
Ignition switch ........................................177
Light switches.........................................217
Menu switch......................................... 206
Power back door switch ................... 75
Power door lock switch..................... 72
“POWER” switch .................................177
Power window switch ........................ 112
Pre-collision braking off
switch ....................................................279
Rear window wiper and
washer switch ...................................229
Window lock switch ............................ 112
Wiper and washer switch ..............223