fuel LEXUS RX450h 2015 Owner's Manual

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.

1231-6. Refueling
1
Before driving NOTICE■
Refueling ●
Finish refueling within 30 minutes. If more than 30 minutes passes, the internal
valve closes. In this condition, fuel may overflow during the refueling process.
Press the fuel filler d oor opener switch again.●
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle's
painted surface.

1682-1. Driving procedures
■
Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake sys-
tem needs bedding-down of the brake shoe s periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down operation.■
Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
correct fuel. (  P. 800)■
For efficient use ●
Shift the shift lever to D when driving.
In the N position, the gasoline engine op erates but electricity cannot be gener-
ated. The hybrid battery (traction battery) will discharge, requiring unnecessary
engine power to recharge.●
Drive your vehicle smoothly.
Avoid abrupt acceleration and deceleration. Gradual acceleration and decel-
eration will make more effective use of the electric motor (t raction motor) with-
out having to use gasoline engine power.●
Avoid repeated acceleration.
Repeated acceleration consumes hybrid battery (traction battery) power,
resulting in poor acceleration. Battery power can be restored by driving with
the accelerator pedal slightly released.●
Shift the shift lever to P when parking.
In the N position, the hybrid battery (traction battery) does not recharge.
Leaving the shift lever in the N position for an extended period of time may dis-
charge the hybrid battery. The vehicle cannot run if the hybrid battery is dis-
charged.■
Eco-friendly driving
 P. 1 9 9
CAUTION
■
When starting the vehicle
Always keep your foot on the brake pe dal while stopped with the hybrid system
operating. This prevents the vehicle from creeping.

1842-1. Driving procedures
■
Situations in which EV driv e mode cannot be turned on
It may not be possible to turn EV drive mode on in the following situations. If it can-
not be turned on, a buzzer will sound and a message will be shown on the multi-
information display. ●
The temperature of the hybrid system is high.
The vehicle has been left in the sun, driv en on a hill, driven at high speeds, etc.●
The temperature of the hybrid system is low.
The vehicle has been left in extremely low temperatures for a long period of
time etc.●
The gasoline engine is warming up.●
The hybrid battery (traction battery) is low.●
Vehicle speed is about 25 mph (40 km/h) or more.●
The accelerator pedal is depressed firmly or the vehicle is on a hill etc.●
The windshield defogger is in use.■
Automatic cancelation of EV drive mode
When driving in EV drive mode, the gasoline engine may automatically restart in
the following situations. When EV drive mo de is canceled, a buzzer will sound and
the EV drive mode indicator will flash and go off. ●
The hybrid battery (traction battery) becomes low.●
Vehicle speed becomes more than about 25 mph (40 km/h).
If engine coolant temperature is low, EV drive mode may be canceled when
vehicle speed is below 25 mph (40 km/h).●
The accelerator pedal is depressed firmly or the vehicle is on a hill etc.
When it is possible to inform the driver of automatic cancelation in advance, a prior
notice screen will appear on the multi-information display.■
Possible driving distance when driving in EV drive mode
In EV drive mode, it is possible to drive up about 1 /2 mile (1 km) if driving at a speed
of about 25 mph (40 km/h) or less.
(The distance that is possible depends on the hybrid battery [traction battery] level
and driving conditions.)
■
Fuel economy
RX450h is designed to achieve the best po ssible fuel economy during normal driv-
ing (using the gasoline engine and electric motor [traction motor]). Driving in EV
drive mode more than necessary may lower fuel economy.

1872-1. Driving procedures
2
When driving ■ Selecting Eco drive mode
When the vehicle is driven in Eco drive mode, vehicle driving force
and operation of the air condit ioning system (heating/cooling) is
controlled to improve fuel efficiency.
Press the menu switch. The multi-information display
will change modes to electronic
features control mode.
Press the “  ” or “  ” switch
until “ECO MODE” appears.
Press the “ENTER” switch to
change to “ON”.
The “ECO MODE” indicator
will be displayed. Each pressing of the switch
turns Eco drive mode on and off.
Press the menu switch to
change to the normal display.STEP 1
STEP 2

1902-1. Driving procedures
Changing shift ranges in S mode
When the shift lever is in the S position, the shift lever can be operated as
follows:
Upshifting
Downshifting
The initial shift range in S mode is set automatically to “5” or “4” accord-
ing to vehicle speed.
■ Shift ranges and their functions
● You can choose from 6 levels of engine braking force.
● A lower shift range will provide gr eater engine braking force than a
higher shift range, and the engi ne speed will also increase.■
Operation of the air conditioning system in Eco drive mode
Eco drive mode controls the heating/cooling operations and fan speed of the air
conditioning system to enhance fuel efficiency. (  P. 342, 350) To improve air con-
ditioning performance, adjust the fa n speed or turn off Eco drive mode. ■
Automatic return to normal driving mode
If snow mode or sport mode is selected , the driving mode will automatically return
to normal mode when the hybrid system is turned off.
■
S mode
●
When the shift range is “5” or lower, holding the shift lever toward “+” sets the
shift range to “6”.
●
To prevent the engine from over-revving, upshifting may automatically occur.

1972
When driving 2-2. Instrument cluster
Gauges and meters
Hybrid System Indicator Displays hybrid system power output and regenerative charging level
ECO lamp and SPORT lamp Changes colors according to driving mode
Speedometer Displays the vehicle speed
Fuel gauge Displays the quantity of fuel remaining in the tank
Multi-information display Presents the driver with a variety of driving-related data (  P. 2 0 6 )
Odometer and trip meter
Odometer: Displays the total distance the vehicle has been driven
Trip meter: Displays the distance the vehicle has been driven since the
meter was last reset. Trip meters “A” and “B” can be used to
record and display different distances independently.
Shift position and shift range display
Displays the selected shift position or selected shift range (  P. 1 8 6 )
Engine coolant temperature gauge
Displays the engine coolant temperature

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