2015 LEXUS RX450h fuel consumption

501-1. Hybrid system
■ Checking tire inflation pressure Make sure to check the tire inflation pressure frequently.
Improper tire inflation pressure can cause poor fu el consumption.
Also, as snow tires can cause large amounts of friction, their use on dry
roads can lead to poor fuel consumptio n. Use a tire that is appropriate for
the season.
■ Luggage Carrying heavy luggage can lead to poor fuel consumption. Avoid carry-
ing unnecessary luggage. Installing a large roof rack can also cause poor
fuel consumption.
■ Warming up before driving Since the gasoline engine starts up and cuts out automatically when cold,
warming up the engine is unnecessary. Moreover, frequently driving short
distances will cause the engine to repeatedly warm up, which can lead to
poor fuel consumption.

2072-2. Instrument cluster
2
When driving ■ Display contents
Trip information contents Switching display items
Energy monitor
Press the “  ” or “  ” switch.Current fuel consumption
Average fuel consumption after
refueling
Average fuel consumption
Average vehicle speed
Cruising range
Tire inflation pressure
Multi-information display off

2092-2. Instrument cluster
2
When driving
Trip information
■ Energy monitor
Displays the status of the hybrid system (  P. 4 0 )
■ Current fuel consumption
Displays the current ra te of fuel consumption
■ Average fuel consumption after refueling
Displays the average fuel consumptio n since the vehicle was last refu-
eled
Use the displayed average fuel consumption as a reference.
■ Average fuel consumption
Displays the average fuel consumpti on since the function was reset
• The function can be reset by pushing the “ENTER” switch for longer
than one second when the average fuel consumption is displayed.
• Use the displayed average fuel consumption as a reference. Other contents Details
Outside temperature Displays the outside temperature
Dynamic radar cruise control display
(if equipped) (  P. 2 3 6 ) Automatically displayed when using
dynamic radar cruise control
Customization (  P. 8 2 5 ) Settings of functions such as the
door lock and light illumination time
can be changed
Wa r n i n g m e s s a g e (  P. 74 3 ) Automatically displayed when a mal-
function occurs in one of the vehi-
cle's systems

2102-2. Instrument cluster
■ Average vehicle speed
Displays the average vehicle speed since the function was reset The function can be reset by pushing the “ENTER” switch for longer than
one second when the average vehicle speed is displayed.
■ Cruising range
Displays the estimated maximum distan ce that can be driven with the
quantity of fuel remaining • This distance is computed based on your average fuel consumption. As
a result, the actual distance that can be driven may differ from that dis-
played.
• When only a small amount of fuel is added to the tank, the display may
not be updated.
When refueling, turn the “POWER” switch off. If the vehicle is refueled
without turning the “POWER” switch off, the display may not be
updated.
■ Tire inflation pressure
Displays inflation pressure of each tire. There is no correlation between
the order of the displayed values and the tire positions. If the inflation pressure of any tire drops a certain amount below the tire infla-
tion pressure value currently memorized in the system, the displayed values
will be highlighted.
It may take a few minutes to display the tire inflation pressure after the
“POWER” switch is turned to ON mode. It may also take a few minutes to
display the tire inflation pressure after inflation pressure has been adjusted.
If the tire pressure warning light is on or flashing, a message describing the
situation will be displayed.

3483-2. Using the air conditio ning system and defogger
■
Air conditioning system settings ●
When the “POWER” switch is turned on , the air conditioning system settings
will be set to those that were in us e 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.■
When the outside temperature exceeds 75°F (24°C) and the air conditioning
system is on ●
In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.●
Recirculated air mode is selected as a default mode when the “POWER” switch
is turned to ON mode.●
It is possible to switch to outside air mode at any time by pressing .
■
Window defogger feature
Recirculated air mode may automatically switch to outside air mode in situations
where the windows need to be defogged.

3563-2. Using the air conditio ning system and defogger
■
When the outside temperature exceeds 75°F (24°C) and the air conditioning
system is on ●
In order to reduce the air conditioning power consumption, the air conditioning
system may switch to recirculated air mode automatically. This may also reduce
fuel consumption.●
Recirculated air mode is selected as a default mode when the “POWER” switch
is turned to ON mode.●
It is possible to switch to outside air mode at any time by pressing .■
Window defogger feature
Recirculated air mode may automatically switch to outside air mode in situations
where the windows need to be defogged.■
When outside air temperature is below 32  F (0  C)
The cooling and dehumidification fu nction may not operate even when
is
pressed.■
When the indicator light on goes off
Press to turn on the cooling and dehumi dification function again. There may
be a problem in the air conditioning system if the indicator light goes off again
shortly after the button is pressed. Have it inspected by your Lexus dealer.■
Ventilation and air conditioning odors ●
To let fresh air in, set the air conditioning system to the outside air mode.●
During use, various odors from inside and outside the vehicle may enter into
and accumulate in the air conditioning sy stem. This may then cause odor to be
emitted from the vents.●
To reduce potential odors from occurring:
• It is recommended that the air conditioning system be set to outside air mode
prior to turning the vehicle off.
• The start timing of the blower may be delayed for a short period of time
immediately after the air conditioning system is started in automatic mode.

865Alphabetical index
Fuel
Capacity................................................ 800
Fuel gauge .............................................. 197
Information............................................. 810
Refueling ....................................................119
Type........................................................... 810
Fuel consumption.....................................45
Fuel door..................................................... 119
Fuel filler door........................................... 119
Fuses.......................................................... 689
Garage door opener............................ 616
Gauges....................................................... 197
Glove box ............................................... 586
Hands-free system for
mobile phone* ........................ 429, 547
Hazard lights
Switch ......................................................724
Head restraints
Adjustment ..............................................97
Headlight aim .........................................706
Headlight cleaner .................................. 231
Headlights
Discharge headlight
precautions ........................................ 722
Replacing light bulbs ....................... 708
Switch ........................................................ 217
Wattage ................................................ 809
Head-up display
Display contrast adjustment
switch ..................................................... 212
Display position adjustment
switch ..................................................... 212
Head-up display main switch ....... 212 Heaters
Seat heaters ......................................... 605
Side mirrors* ....................................... 358
Steering wheel.................................... 604
Hill-start assist control ........................ 276
Hood ........................................................... 651
Hooks
Cargo ........................................................612
Coat......................................................... 608
Horn ............................................................ 196
HUD
Display contrast adjustment
switch...................................................... 212
Display position adjustment
switch...................................................... 212
Head-up display main switch ........212
Hybrid system
Emergency shut off system.............. 35
Energy monitor/consumption
screen...................................................... 39
High voltage components ............... 34
Hybrid system indicator .................. 201
“POWER” switch................................. 177
Vehicle Proximity Notification
System.......................................................31
Hybrid transmission
Hybrid transmission........................... 186
If the shift lever cannot be
shifted from P ................................... 779
S mode ..................................................... 190G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.