2019 LEXUS RX450H Owners Manual

3934-6. Driving tips
4
Driving
RX450h_RX450hL_U
NOTICE
■Repairing or replacing snow tires
Request repairs or replacement of snow tires from Lexus dealers or legitimate tire
retailers.
This is because the removal an d attachment of snow tires affects the operation of the
tire pressure warning va lves and transmitters.
■Fitting tire chains
The tire pressure warning valv es and transmitters may not function correctly when tire
chains are fitted.

3944-6. Driving tips
RX450h_RX450hL_U
●Specific design characteristics give it a higher center of gravity than ordinary
passenger cars. This vehicle design feature causes this type of vehicle to be
more likely to rollover. And, utility vehi cles have a significantly higher rollover
rate than other types of vehicles.
●An advantage of the higher ground cl earance is a better view of the road
allowing you to anticipate problems.
●It is not designed for cornering at the same speeds as ordinary passenger cars
any more than low-slung sports cars are designed to perform satisfactorily
under off-road conditions. Therefore, sharp turns at excessive speeds may
cause the vehicle to rollover.
Utility vehicle precautions
This vehicle belongs to the utility vehicl e class, which has higher ground clear-
ance and narrower tread in relation to the height of its center of gravity.
Utility vehicle feature
WARNING
■Utility vehicle precautions
Always observe the following precautions to minimize the risk of death, serious injury
or damage to your vehicle:
●In a rollover crash, an unbelted person is si gnificantly more likely to die than a person
wearing a seat belt. Therefore, the driver and all passengers should always fasten
their seat belts.
●Avoid sharp turns or abrupt maneuvers, if at all possible.
Failure to operate this vehicle correctly may result in loss of control or vehicle rollover
causing death or serious injury.
●Loading cargo on the roof luggage carrier will make the ce nter of the vehicle gravity
higher. Avoid high speeds, sudden starts, sharp turns, sudden braking or abrupt
maneuvers, otherwise it may re sult in loss of control or vehicle rollover due to failure
to operate this vehicle correctly.
●Always slow down in gusty crosswinds. Be cause of its profile and higher center of
gravity, your vehicle is more sensitive to side winds than an ordinary passenger car.
Slowing down will allow you to have better control.
●Do not drive horizontally across steep slopes . Driving straight up or straight down is
preferred. Your vehicle (or any similar off- road vehicle) can tip over sideways much
more easily than forward or backward.

3954-6. Driving tips
4
Driving
RX450h_RX450hL_U
Your vehicle is not designed to be driven off-road. However, in the event that
off-road driving cannot be avoided, please observe the following precautions to
help avoid the areas prohibited to vehicles.
●Drive your vehicle only in areas wher e off-road vehicles are permitted to
travel.
●Respect private property. Get owner’s permission before entering private
property.
●Do not enter areas that are closed. Honor gates, barriers and signs that
restrict travel.
●Stay on established road s. When conditions are wet, driving techniques
should be changed or travel dela yed to prevent damage to roads.
●Avoid driving on very steep, slippery ro ads and other surfaces, such as sand,
where the tires are liable to lose tractio n. Your vehicle may not perform as well
as conventional AWD on-road vehicles on these surfaces.
■Additional information for off-road driving
For owners in U.S. mainland, Hawaii and Puerto Rico:
To obtain additional information pertaining to driving your vehicle off-road, consult the
following organizations.
●State and Local Parks and Recreation Departments
●State Motor Vehicle Bureau
●Recreational Vehicle Clubs
●U.S. Forest Service and Bu reau of Land Management
Off-road driving

3964-6. Driving tips
RX450h_RX450hL_U
[
WARNING
■Off-road driving precautions
Always observe the following precautions to minimize the risk of death, serious injury
or damage to your vehicle:
●Drive carefully when off the road. Do not ta ke unnecessary risks by driving in danger-
ous places.
●Do not grip the steering wheel spokes when driving off-road. A bad bump could jerk
the wheel and injure your hands. Keep both hands and especially your thumbs on the
outside of the rim.
●Always check your brakes for effectiveness immediately after driving in sand, mud,
water or snow.
●After driving through tall grass, mud, rock , sand, rivers, etc., check that there is no
grass, bush, paper, rags, stone, sand, etc. adhering or trapped on the underbody.
Clear off any such matter from the underbody. If the vehicle is used with these materi-
als trapped or adhering to the underbody, a breakdown or fire could occur.
●When driving off-road or in rugged terrain , do not drive at excessive speeds, jump,
make sharp turns, strike obje cts, etc. This may cause loss of control or vehicle rollover
causing death or serious injury. You are also risking expensive damage to your vehi-
cle’s suspension and chassis.
NOTICE
■To prevent water damage
Take all necessary safety measures to ensure that water damage to the hybrid battery
(traction battery), hybrid system or other components does not occur.
●Water entering the engine compartment may cause severe damage to the hybrid
system. Water entering the interior may cause the hybrid battery (traction battery)
stowed under the rear seats to short circuit.
●Water entering the hybrid transmission and rear electric motor (traction motor) will
cause deterioration in transmission qualit y. The malfunction indicator may come on,
and the vehicle may not be drivable.
●Water can wash the grease from wheel be arings, causing rusting and premature fail-
ure, and may also enter the hybrid transmissi on case, reducing the gear oil’s lubricat-
ing qualities.
■When you drive through water
If driving through water, such as when cro ssing shallow streams, first check the depth of
the water and the bottom of the riverbed for firmness. Drive slowly and avoid deep
water.
■Inspection after off-road driving
●Sand and mud that has accumulated around brake discs may affect braking efficiency
and may damage brake system components.
●Always perform a maintenance inspection afte r each day of off-road driving that has
taken you through rough terrain, sand, mud, or water. For scheduled maintenance
information, refer to the “Warranty and Services Guide/Owner’s Manual Supple-
ment/Scheduled Maintenance”.

3974-6. Driving tips
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Driving
RX450h_RX450hL_U

398
RX450h_RX450hL_U
5-1. Basic OperationsLexus Display Audio system ......................................... 400
Steering wheel audio switches.......................................406
Mobile Assistant......................... 407
USB/AUX ports ........................409
5-2. Setup Setup menu ....................................412
General settings .......................... 413
Voice settings ............................... 416
Display settings .............................417
5-3. Using the audio system Selecting the audio source ........................................... 418
Optimal use of the audio system ........................................... 419
Audio settings ............................. 420
Audio menu screen operation .................................... 423
5-4. Using the radio Radio operation.......................... 426
5-5. Playing an audio CD and MP3/WMA/AAC discs
CD player operation ................ 433
5
Lexus Display Audio system

399
5
Lexus DisplayAudio system
RX450h_RX450hL_U
5-6. Using an external device
Listening to an iPod .................. 440
Using USB memory device...........................................444
Using the AUX port ................ 448
5-7. Connecting Bluetooth
®
Steps for using Bluetooth®
devices .........................................449
Registering a Bluetooth
®
device............................................ 451
Selecting a Bluetooth
®
device ...........................................452
Connecting a Bluetooth
®
audio player ...............................453
Connecting a Bluetooth
®
phone ...........................................454
Displaying a Bluetooth
®
device details ........................... 455
Detailed Bluetooth
®
settings.........................................456
5-8. Bluetooth
® Audio
Listening to Bluetooth
®
Audio............................................459 5-9. Bluetooth
® Phone
Using a Bluetooth
®
Phone ............................................ 461
Making a call ................................ 463
Receiving a call ........................... 466
Speaking on the phone............ 467
Using a Bluetooth
® phone
message ...................................... 469
Using the steering wheel switches.........................................471
Bluetooth
® phone
settings ........................................ 472
5-10. Phonebook Contact settings ......................... 474
Messaging setting...................... 477
5-11. Bluetooth
®
What to do if... (Troubleshooting)................... 478
Bluetooth
®................................... 482
5-12. Other function “Information” screen................ 488
USB photo ....................................490
Weather information................ 492
Voice command system ......... 493

400
RX450h_RX450hL_U5-1. Basic Operations
Disc slot
“TUNE•SCROLL” knob
Select a radio station band, track or file.
Except radio and A/V mode: Pause or
resume playing a track or file.
Radio and A/V mode: Turn mute on/off.
Select preset radio stations, or access a desired track or file.
Display the media top screen.
Display the radio top screen.
Eject a disc.
“PWR•VOL” knob
Press to turn the audio system on/o ff, and turn to adjust the volume.
Lexus Display Audio system

: If equipped
Use the following buttons to star t listening to the audio system.
Lexus Display Audio operation buttons
1
2
3
4
5
6
7
8