fuel cap LEXUS RX450h 2015 Owners Manual

TABLE OF CONTENTS Index
21-1. Hybrid system
Hybrid system .................................. 30
Hybrid system precautions ......... 34
Energy monitor/consumption
screen................................................ 39
Hybrid vehicle driving tips........... 49
1-2. Key information
Keys ....................................................... 51
1-3. Opening, closing and locking
the doors
Smart access system with
push-button start .......................... 56
Wireless remote control .............. 69
Side doors .......................................... 72
Back door ........................................... 75 1-4. Adjustable components
(seats, mirrors,
steering wheel)
Front seats .......................................... 86
Rear seats ........................................... 89
Driving position memory ............. 93
Head restraints................................. 97
Seat belts ............................................ 99
Steering wheel................................ 105
Anti-glare inside rear view
mirror .............................................. 107
Outside rear view mirrors ......... 109
1-5. Opening and closing the
windows and moon roof
Power windows................................ 112
Moon roof .......................................... 115
1-6. Refueling
Opening the fuel tank cap........... 119
1-7. Theft deterrent system
Immobilizer system ...................... 124
Alarm.................................................. 126
Theft prevention labels ............... 1291
Before drivingFor vehicles with a navigation system, refer to the “Navigation System Owner’s
Manual” for information regarding the equipment listed below.
• Navigation system
• Air conditioning controls
• Windshield wiper de-icer
• Rear view monitor system • Intuitive parking assist
• Audio/video system
• Rear window and outside rear view
mirror defogging

Before driving
1
291-1. Hybrid system
Hybrid system ........................... 30
Hybrid system precautions .... 34
Energy monitor/
consumption screen .............. 39
Hybrid vehicle driving tips...... 49
1-2. Key information
Keys ................................................ 51
1-3. Opening, closing and
locking the doors
Smart access system with
push-button start .................... 56
Wireless remote control ......... 69
Side doors.................................... 72
Back door .................................... 75
1-4. Adjustable components
(seats, mirrors,
steering wheel)
Front seats ................................... 86
Rear seats ................................... 89
Driving position memory ........ 93
Head restraints .......................... 97
Seat belts ..................................... 99
Steering wheel ......................... 105 Anti-glare inside rear view
mirror....................................... 107
Outside rear view
mirrors..................................... 109
1-5. Opening and closing the
windows and moon roof
Power windows ......................... 112
Moon roof .................................. 115
1-6. Refueling
Opening the fuel tank
cap ............................................. 119
1-7. Theft deterrent system
Immobilizer system ................ 124
Alarm.......................................... 126
Theft prevention labels ......... 129
1-8. Safety information
Correct driving posture ....... 130
SRS airbags .............................. 132
Front passenger occupant
classification system............ 145
Child restraint systems ......... 150
Installing child restraints....... 154

1191
Before driving 1-6. Refueling
Opening the fuel tank cap The fuel tank of your vehicle has a special structure, which requires a
reduction in fuel tank pressure before refueling. After the opener switch
has been pressed, it will take severa l seconds until the vehicle is ready for
refueling.
■ Before refueling the vehicle
● Turn the “POWER” switch off and close all the doors and win-
dows.
● Confirm the type of fuel. (  P. 121)
■ Opening the fuel tank cap
Press the opener to open the
fuel filler door. The fuel filler door will open
within about 10 seconds of the
switch being pressed. Before
refueling is poss ible, a message
will be shown on the multi-infor-
mation display in the instrument
cluster to indicate the progress
of the fuel filler door opener.
(  P. 7 5 5 )
Turn the fuel tank cap slowly to
open.STEP 1
STEP 2

1201-6. Refueling
Closing the fuel tank cap
After refueling, turn the fuel tank
cap until you hear a click.Hang the fuel tank cap on the
back of the fuel filler door.STEP 3

1211-6. Refueling
1
Before driving ■
When the fuel filler door cannot be opened by pressing the inside switch
Open the back door and li ft the deck board up. (  P. 6 6 4 )
With a compact spare tire only:
Remove the spare tire cover. (  P. 664)
Remove the 12-volt battery cover. (  P. 664)
Install the 12-volt battery cover using the clips. (  P. 6 6 7 )
Using the lever to open the fuel filler door may not allow for an adequate reduction
in fuel tank pressure before refueling. To prevent fuel from spilling out, turn the cap
slowly when removing it.
During refueling, fuel may spill out from the filler opening due to air being dis-
charged from inside the fuel tank. Therefore, fill the fuel tank carefully and slowly.■
Fuel types
Unleaded gasoline (Octane rating 91 [R esearch Octane Number 96] or higher)STEP 1
STEP 2
STEP 3
If the fuel filler door opener switch cannot be
operated, contact your Lexus dealer to ser-
vice the vehicle. In case where refueling is
urgently necessary, the fuel filler door can be
opened using the lever in the luggage com-
partment.STEP 4
STEP 5

1221-6. Refueling
CAUTION■
When refueling the vehicle
Observe the following precautions while refueling the vehicle. Failure to do so may
result in death or serious injury. ●
After exiting the vehicle and before opening the fuel door, touch an unpainted
metal surface to discharge any static electricity. It is important to discharge static
electricity before refueling because sparks resulting from static electricity can
cause fuel vapors to ignite while refueling.●
Always hold the grips on the fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until
the sound cannot be heard before fully re moving the cap. In hot weather, pressur-
ized fuel may spray out of the filler neck and cause injury.●
Do not allow anyone that has not discharged static electricity from their body to
come close to an open fuel tank.●
Do not inhale vaporized fuel.
Fuel contains substances that are harmful if inhaled.●
Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.●
Do not return to the vehicle or touch an y person or object that is statically
charged.
This may cause static electricity to build up , resulting in a possible ignition hazard.■
When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank: ●
Securely insert the fuel nozzle into the fuel filler neck●
Stop filling the tank after the fuel nozzle automatically clicks off●
Do not top off the fuel tank
■
When replacing the fuel cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle.
Doing so may cause a fire or other incident which may result in death or serious
injury.

2962-5. Driving information
Cargo and luggage
Capacity and distribution
Cargo capacity depends on the to tal weight of the occupants.
(Cargo capacity) = (Total load capa city) — (Total weight of occupants)
Steps for Determining Correct Load Limit 
(1) Locate the statement “The combined weight of occupants and cargo
should never exceed XXX kg or XXX lbs.” on your vehicle’s placard.
(2) Determine the combined weight of th e driver and passengers that will
be riding in your vehicle.
(3)Subtract the combined weight of the driver and passengers from
XXX kg or XXX lbs.
(4)The resulting figure equals the av ailable amount of cargo and luggage
load capacity.
For example, if the “XXX” amount equals 1400 lbs. and there will be
five 150 lb passengers in your ve hicle, the amount of available cargo
and luggage load capacity is 650 lbs. (1400  750 (5  150) = 650
lbs.)
(5)Determine the combined weight of luggage and cargo being loaded
on the vehicle. That weight may no t safely exceed the available cargo
and luggage load capacity calculated in Step 4. Take notice of the following information about storage precautions, cargo
capacity and load.
● Stow cargo and luggage in the luggage compartment whenever
possible.
● Be sure all items are secured in place.
● Be careful to keep the vehicle level. Placing the weight as far for-
ward as possible helps maintain vehicle balance.
● For better fuel economy, do not carry unnecessary weight.

3473-2. Using the air conditio ning system and defogger
3
Interior features Front side outlets
Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.
Rear outlets
Direct air flow to the left or right,
up or down.
Turn the knob to open or close
the vent.
■
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning syst em is controlled as follows to prioritize
fuel efficiency: ●
Engine speed and compressor operation controlled to restrict heating/cooling
capacity●
Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:●
Adjust the fan speed
●
Turn off Eco drive mode
■
Customization
The air conditioning control of Eco drive mode can be changed to the same setting
as that used in normal drive mode.
(Customizable features  P. 825)

3553-2. Using the air conditio ning system and defogger
3
Interior features ■
Operation of the air conditioning system in Eco drive mode
In Eco drive mode, the air conditioning syst em is controlled as follows to prioritize
fuel efficiency: ●
Engine speed and compressor operation controlled to restrict heating/cooling
capacity●
Fan speed restricted when automatic mode is selected
To improve air conditioning performanc e, perform the following operations:●
Adjust the fan speed●
Turn off Eco drive mode■
Customization
The air conditioning control of Eco drive mode can be changed to the same setting
as that used in normal drive mode.
(Customizable features  P. 825)■
Air conditioning system settings ●
When the “POWER” switch is turned on, the air conditioning system settings
will be set to those that were in use the last time the “POWER” switch was
turned off.●
Air conditioning system settings are memorized individually on each electronic
key, so the settings repr oduced will be specific to the key that is used.●
This feature is customizable at your Lexus dealer.■
Using automatic mode
Fan speed is adjusted automatically accord ing to the temperature setting and ambi-
ent conditions. As a result, the following may occur:
Immediately after the button is pressed, the fan may stop for a while until warm or
cool air is ready to flow.■
Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used for an extended
period.
■
Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched in accor-
dance with the temperature setting and the inside temperature.

6474-2. Maintenance
4
Maintenance and care Emission inspection and maintenance (I/M) programsSome states have vehicle emission inspection programs which include
OBD (On Board Diagnostics) checks. The OBD system monitors the oper-
ation of the emission control system.
■ If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere in
the emission control system. Your vehicle may not pa ss the I/M test
and may need to be repaired. Cont act your Lexus dealer to service
the vehicle.
■ Your vehicle may not pass the I/M test in the following situations:
● When the 12-volt battery is disconnected or discharged
Readiness codes that are set during ordinary driving are erased.
Also, depending on your driving habits, the readiness codes may
not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on indicating a temporary
malfunction and your vehicle may not pass the I/M test.
■ When the malfunction indicator la mp still remains on after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Lexus dealer to prep are the vehicle for re-testing.