Page 25 of 487

Before driving1
23
RX400h_U
1-1. Hybrid system .................. 24Hybrid system ............................ 24
1-2. Key information ............... 34 Keys ............................................... 34
1-3. Opening, closing and locking the doors ........... 36
Wireless remote control ......... 36
Side doors.................................... 39
Back door .................................... 44
1-4. Adjustable components (seats, mirrors,
steering wheel) .............. 49
Front seats ................................... 49
Rear seats .................................... 52
Driving position memory ........ 55
Head restraints .......................... 57
Seat belts .................................... 58
Steering wheel (manually adjustable type) ...................... 65
Steering wheel (power-adjustable type) ....... 66
Anti-glare inside rear view mirror ......................................... 67
Outside rear view mirrors ...... 68
Roof luggage carrier................ 70 1-5. Opening and closing the
windows and
moon roof ........................ 72
Power windows .......................... 72
Moon roof ................................... 75
1-6. Refueling .......................... 78 Opening the fuel tank cap ..... 78
1-7. Theft deterrent system ... 83 Hybrid vehicle immobilizer system ........................................ 83
Alarm............................................ 85
Theft prevention labels (U.S.A.)...................................... 88
1-8. Safety information........... 89 Correct driving posture ......... 89
SRS airbags ................................. 91
Front passenger occupant classification system............ 103
Child restraint systems ......... 108
Installing child restraints........ 112
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1-1. Hybrid system
RX400h_U■
Hybrid battery air vent
There is an air intake vent under
the rear seats to cooling the hybrid
battery (traction battery). If the
vent becomes blocked, the hybrid
battery may overheat, leading to a
reduction in hybrid battery output.
Emergency shut off system
The emergency shut off system blocks off the high voltage current and
stops the fuel pump to minimize the r isk of electrocution and fuel leakage
when a certain level of impact is detected by the impact sensor. If the
emergency shut off system activates, your vehicle will not restart. To
restart the hybrid system, contact your Lexus dealer.
Energy monitor/consumption screen
You can view the status of your hybr id system on the multi-information
display ( →P. 143) and the navigation system screen. The following
images are examples only, and may vary slightly from actual conditions.
■ Energy monitor
● How to display on the navigation system screen:
Press INFO.
Touch on the Information screen.
If the Consumption screen is displayed, touch .
● How to display on the multi-information display:
Push the button several times to select the energy moni-
tor display.
STEP1
STEP2
STEP1
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1-1. Hybrid system
1
Before driving
RX400h_U
■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 case, try to start the system again. If the
READY light does not come on, contact your Lexus dealer.
■Emergency shut off system
The emergency shut off system blocks off the high voltage current and stops the
fuel pump to minimize the risk of the electric leakage and the fuel leakage when a
certain level of impact is detected by the impact sensor. If the system activates, your
vehicle will not restart. To restart the hybrid system, contact a Lexus dealer.
CAUTION
■High voltage precautions
The vehicle has high voltage DC and AC systems as well as a system. DC and AC
high voltage is very dangerous and can cause severe burns and electric shock that
may result in death or serious injury.
●Never touch, disassemble, remove or replace the high voltage parts, cables and
their connectors.
●The hybrid system will become hot after starting as the system uses high voltage.
Be careful of both the high voltage and the high temperature, and always obey
the caution labels attached to the vehicle.
●Never try to open the service plug access hole located in the luggage compart-
ment. The service plug is used only when the vehicle is serviced and is subject to
high voltage.
Page 37 of 487
35
1-2. Key information
1
Before driving
RX400h_U
■When required to leave a key to the vehicle with a parking attendant
Lock the glove box as circumstances demand. (→ P. 2 6 5 )
Carry the master key for your own use and leave the valet key only with the atten-
dant.
■Key number plate
Keep the plate in a safe place such as your wallet, not in the vehicle. In the event that
a key is lost, a new key can be made at your Lexus dealer using the key number
plate. ( →P. 4 2 0 )
NOTICE
■To prevent key damage
●Do not subject the keys to strong shocks, expose them to high temperatures by
placing them in direct sunlight, or get them wet.
●Do not expose the keys to electromagnetic materials or attach any material that
blocks electromagnetic waves to the key surface.
Page 38 of 487
36
RX400h_U
1-3. Opening, closing and locking the doors
Wireless remote control
The wireless remote control can be used to lock/unlock the vehicle and
open/close the back door from outside the vehicle.
Vehicles without power back doorLocks all doors
Unlocks all doors
Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Opens the windows and
moon roof
Push and hold.
Sounds alarm (→P. 8 5 )
Push and hold.
Vehicles with power back door
Locks all doors
Sounds alarm (→P. 8 5 )
Push and hold.
Unlocks all doors
Pressing the button unlocks the
driver’s door. Pressing the but-
ton again within 3 seconds
unlocks the other doors.
Opens the windows and
moon roof
Push and hold.
Opens and closes the back
door
Push and hold.
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1-3. Opening, closing and locking the doors
1
Before driving
RX400h_U
■Back door operation
The back door can be opened even if it is locked. Lock the back door again when
you leave the vehicle. The back door will not lock automatically after it has been
opened and then closed.
■Operation signals
Side doors: A buzzer sounds and the emergency flashers flash to indicate that the doors have been locked/unlocked. (Locked: Once; Unlocked: Twice)
Back door: A buzzer sounds twice and the emergency flashers flash twice to indi- cate that the back door has been opened/closed.
Windows and moon roof: A buzzer sounds to indicate that the windows and moon
roof are operating.
■Door lock buzzer
If a door is not fully closed, a buzzer sounds continuously if an attempt to lock the
door is made. Fully close the door to stop the buzzer, and lock the vehicle once
more.
■Security feature
If a door is not opened within approximately 60 seconds after the vehicle is
unlocked, the anti-theft system automatically locks the vehicle again.
■Battery depletion
→ P. 3 4 8
■Customization that can be configured at Lexus dealer
Settings (e.g. door unlocking function) can be changed. (Customizable features
→P. 4 5 8 )
■Reversing the operation of the power back door
Pressing the wireless remote control switch again while the power back door is
operating will cause the operation to reverse. However, the reverse operation can-
not be performed for the first second after automatic operation starts, even if the
wireless remote control switch is pressed again.
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1-3. Opening, closing and locking the doors
RX400h_U
■Certification for wireless remote controlFor vehicles sold in the U.S.A.
NOTE:
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) This device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation.
NOTICE:
This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa-
tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may cause harmful inter-
ference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful inter-
ference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by
one or more of the following measures:
●Reorient or relocate the receiving antenna.
●Increase the separation between the equipment and receiver.
●Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
●Consult the dealer or an experienced radio-TV technician for help.
FCC WARNING:
Changes or modifications not expressly approved by the party responsible for
compliance could void the user's authority to operate the equipment. For vehicles sold in Canada
NOTE:
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
Page 41 of 487
39
1
1-3. Opening, closing and locking the doors
Before driving
RX400h_U
Side doors
The vehicle can be locked and unlocked using a key, wireless remote con-
trol or door lock switch.
■Key
Locks all doors
Closes the windows and
moon roof (turn and hold)
Unlocks all doors
Turning the key unlocks the
driver’s door. Turning the key
again unlocks the other doors.
Opens the windows and
moon roof (turn and hold)
■ Wireless remote control
→ P. 36
■ Door lock switch
Locks all doors
Unlocks all doors