fuel LEXUS RX450h 2015 User Guide

381-1. Hybrid system
CAUTION●
If your vehicle needs to be towed, do so with all front wheels (for 2WD models) or
four wheels (for AWD models) raised. If the wheels connected to the electric
motor (traction motor) are on the ground when towing, the motor may continue
to generate electricity. This may cause an electricity leakage leading to a fire.
(
 P. 7 2 5 )●
Carefully inspect the ground under the vehicle. If you find that liquid has leaked
onto the ground, the fuel system may have been damaged. Leave the vehicle as
soon as possible.■
Nickel-metal hydride battery
Your vehicle contains a sealed nickel-metal hydride battery. If disposed of improp-
erly, it is hazardous to the environment and there is a risk of severe burns and elec-
trical shock that may result in death or serious injury.■
Emergency shut off system
Carefully check to see if there are exposed high voltage parts or cables. Never
touch the parts or cables. (
 P. 3 4 )
NOTICE■
Hybrid battery air vents ●
Do not put foreign objects over the air vents. The hybrid battery (traction battery)
may overheat or lose power and be damaged. ●
Clean the air vents regularly to prevent the hybrid battery (traction battery) from
overheating.●
Do not wet or allow foreign substances to enter the air vents as this may cause a
short circuit and damage the hybrid battery (traction battery).●
Do not carry large amounts of water such as an aquarium into the vehicle. If water
spills onto the hybrid battery (tractio n battery), the battery may be damaged.
Have the vehicle inspected by your Lexus dealer.

401-1. Hybrid system
Energy monitor
Navigation system screen (if equipped)
Press the “MENU” button on the
Remote Touch.
Select “Info/Apps”.
Select “Fuel Consumption”. If the “Trip Information” or “Past
Record” screen is displayed, select
the “Energy”.STEP 1
STEP 2
STEP 3

451-1. Hybrid system
1
Before driving Consumption
■ Trip information
Vehicles with a navigation system
Press the “MENU” button on the Remote Touch and select “Info/
Apps”.
Select “Fuel Consumption”. If the “Trip Information” screen does not appear, select “Fuel Consump-
tion” on the “Energy Monitor” screen or “Trip Information” on the “Past
Record” screen.
Reset the trip information data
Average vehicle speed
Elapsed time
Cruising range
Previous fuel consumption per
minute
Current fuel consumption
“Past Record” screen appears
“Energy Monitor” screen
appears
Regenerated energy : One symbol indicates 50
Wh.
The image is example only, and may vary slightly from actual conditions. STEP 1
STEP 2

461-1. Hybrid system
Vehicles with the Lexus Display Audio system
Press the “MENU” button on the Lexus Display Audio controller.
Select “Car” on the “Menu” screen. If the “Trip information” screen does not appear, select “Trip informa-
tion”.
Reset the trip information data
Average vehicle speed
Elapsed time
Cruising range
Previous fuel consumption per
minute
Current fuel consumption
“History” screen appears
“Energy Monitor” screen
appears
Regenerated energy : One symbol indicates 50
Wh.
The image is example only, and may vary slightly from actual conditions. STEP 1
STEP 2

471-1. Hybrid system
1
Before driving ■ Past record
Vehicles with a navigation system
Press the “MENU” button on the Remote Touch and select “Info/
Apps”.
Select “Fuel Consumption”. If the “Past Record” screen does not appear, select “Fuel Consumption”
on the “Energy Monitor” screen or “Past Record” on the “Trip Informa-
tion” screen.
Update the past record data
Reset the past record data
Best past fuel consumption
Average fuel consumption Use the displayed average fuel
consumption as a reference.
Previous fuel economy record
Current fuel economy
“Trip Information” screen
appears
“Energy Monitor” screen
appearsThe image is example only, and may vary slightly from actual conditions. STEP 1
STEP 2

481-1. Hybrid system
Vehicles with the Lexus Display Audio system
Press the “MENU” button on the Lexus Display Audio controller.
Select “Car” on the “Menu” screen. If the “History” screen does not appear, select “History”.
Previous fuel economy record
Current fuel economy
Best past fuel consumption
Update the past record data
Reset the past record data
“Trip information” screen
appears
“Energy Monitor” screen
appearsThe image is example only, and may vary slightly from actual conditions. STEP 1
STEP 2
■
Updating the past record data
Selecting “Update” on the “Past Record” or “History” screen will update the past
record data.
Also, the average fuel consumption displayed in the multi-information display will
be reset at the same time.

4911-1. Hybrid system
Before driving Hybrid vehicle driving tips For economical and ecological driving, pay attention to the following
points:
■ Use of Hybrid System Indicator More Eco-friendly driving is possib le by keeping the indicate of Hybrid
System Indicator within Eco area.
■ When braking the vehicle Make sure to operate the brakes ge ntly and in good time. A greater
amount of electrical energy can be retained when slowing down.
■ Delays Repeated acceleration and deceleration, as well as long waits at traffic
lights, will lead to bad fu el consumption. Check traffic reports before leav-
ing and avoid delays as much as possible. When encountering a delay,
gently release the brake pedal to allow the vehicle to move forward slightly
while avoiding overuse of the accelerato r pedal. Doing so can help control
excessive gasoline consumption.
■ Highway driving Control your speed and keep at a constant speed. Also, before stopping at
a toll booth or similar, allow plenty of time to release the accelerator and
gently apply the brakes. A greater amount of electrical energy can be
retained when slowing down.
■ Air conditioning Use the air conditioning only when necessary. Doing so can help control
excessive gasoline consumption.
In summer: In high temperatures, use the recirculated air mode. Doing so
will help to reduce the burden on the air conditioning and reduce fuel con-
sumption as well.
In winter: Because the gasoline engine will not automatically cut out until
the gasoline engine and the interior of the vehicle are warm, it will con-
sume fuel. Also, fuel consumption can be improved by avoiding overuse of
the heater.

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.

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