2015 LEXUS RX450h fuel

351-1. Hybrid system
1
Before driving Hybrid battery air vents
There are air intake vents under
the rear seats for the purpose of
cooling the hybrid battery (traction
battery). If the vents become
blocked, the hybrid battery may
overheat, leading to a reduction in
hybrid battery output.
Emergency shut off system
When a certain level of impact is detected by the impact sensor, the
emergency shut off system blocks off the high voltage current and stops
the fuel pump to minimize the risk of electrocution and fuel leakage. If the
emergency shut off system activates, your vehicle will not restart. To
restart the hybrid system, contact your Lexus dealer.
Hybrid warning message
A message is automatically displayed when a malfunction occurs in the
hybrid system or an impr oper operation is attempted.
If a warning message is shown on
the multi-information display, read
the message and follow the
instructions. ( 
P. 743)

361-1. Hybrid system
■
If a warning light comes on or a warning message is displayed, or the 12-volt bat-
tery is disconnected
The hybrid system may not start. In that ca se, try to start the system again. If the
“READY” indicator does not come on, contact your Lexus dealer.■
When refueling, the fuel filler door may take a few moments to open
As part of emission system operation, it ma y take up to 10 seconds for the fuel filler
door to automatically release after the opener switch is pressed. Before refueling is
possible, a message will be shown on the multi-information display. (  P. 119, 755)■
Electromagnetic waves ●
High voltage parts and cables on the hybrid vehicles incorporate electromag-
netic shielding, and theref ore emit approximately the same amount of electro-
magnetic waves as conventional gasoline powered vehicles or home electronic
appliances.●
Your vehicle may cause sound interference in some third party-produced radio
parts.■
Running out of fuel
When the vehicle has run out of fuel and th e hybrid system cannot be started, refuel
the vehicle with at least enough gasoline to make the low fuel level warning light
(  P. 733) go off. If there is only a small amount of fuel, the hybrid system may not
be able to start. (The minimum amount of fuel to add to make the low fuel level
warning light go out is about 2.7 gal. [10.1 L, 2.2 Imp. gal.] when the vehicle is on a
level surface. This value may vary when the vehicle is on a slope.)■
Hybrid battery (traction battery)
The hybrid battery (traction battery) has a limited service life. The lifespan of the
hybrid battery (traction battery) can chan ge in accordance with driving style and
driving conditions.

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.