2015 LEXUS RX350 air conditioning

4363-3. Using the Lexus Display Audio system
■
When using the hands-free system ●
The audio system is muted when making a call.●
If both parties speak at the same time, it may be difficult to hear.●
If the received call volume is overly loud, an echo may be heard.
If the Bluetooth ®
phone is too close to the system, quality of the sound may
deteriorate and connecting condition may go down.●
In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• If a window is open
• If the air conditioning is blowing directly on the microphone
• There is an effect from the network of the mobile phone■
Conditions under which the system will not operate ●
If using a mobile phone that does not support Bluetooth ®
●
If the mobile phone is turned off●
If you are outside service range●
If the mobile phon e is not connected●
If the mobile phone’s battery is low●
When outgoing is controlled, due to heavy traffic on telephone lines, etc.●
When the mobile phone itself cannot be used●
When transferring the phonebook data from the mobile phone■
Bluetooth ®
antenna
The antenna is built into the display. If the mobile phone is behind the seat or in the
console box, or touching or covered by metal objects, connection status may dete-
riorate.

5393-4. Using the audio system
3
Interior features ■
When using a voice command
For numbers, say a combination of si ngle digits from zero to nine.
Say the command correctly and clearly.■
Situations in which the system may not recognize your voice ●
When driving on rough roads●
When driving at high speeds●
When air is blowing out of the vents onto the microphone●
When the air conditioning fan emits a loud noise■
Operations that cannot be performed while driving●
Operating the system using ●
Registering a portable player to the system■
Changing the passkey
 P. 5 4 9

5613-4. Using the audio system
3
Interior features ■
Conditions under which the system will not operate ●
If using a mobile phone that does not support Bluetooth ®
●
If the mobile phone is switched off●
If you are outside service range●
If the mobile phon e is not connected●
If the mobile phon e's battery is low●
If the mobile phone is be hind the seat or in the glove box or console box●
If metal is covering or touching the phone■
When using the hands-free system ●
The audio system and voice guidance are muted when making a call.●
If both parties speak at the same time, it may be difficult to hear.●
If the incoming call volume is overly loud, an echo may be heard.●
Try to face toward the microphone as much as possible when speaking.●
In the following circumstances, it may be difficult to hear the other party:
• When driving on unpaved roads
• When driving at high speeds
• When a window is open
• When the air conditioning is blowing directly on the microphone
• When the air conditioning is set to high■
When transferring ownership of the vehicle
Be sure to initialize the system to prevent personal data from being improperly
accessed. (  P. 5 8 7 )■
About Bluetooth ®
Bluetooth is a registered trademark of
Bluetooth SIG. Inc.

5723-4. Using the audio system
■
Automatic volume adjustment
When vehicle speed reaches 50 mph (80 km/h) or more, the volume automati-
cally increases. The volume returns to the previous volume setting when vehicle
speed drops to 43 mph (70 km/h) or less.■
When using a voice command
For numbers, say a combinatio n of single digits from zero to nine, # (pound),
 (star), and + (plus).
Say the command correctly and clearly.■
Situations in which the system may not recognize your voice ●
When driving on rough roads●
When driving at high speeds●
When air is blowing out of the vents onto the microphone●
When the air conditioning fan emits a loud noise■
Operations that cannot be performed while driving
●
Operating the system using ●
Registering a mobile phone to the system■
Changing the passkey
 P. 5 8 1

6133-7. Other interior features
3
Interior features Outside temperature display The temperature display shows temperatures within the range of -40°F
(-40°C) and 122°F (50°C).
With a navigation system
Refer to the “Navigation System Owner’s Manual”.
With the Lexus Display Audio system
The outside temperature is dis-
played on the air conditioning
operation screen. (  P. 345)
Without a navigation system or the Lexus Display Audio system

Maintenance and care
4
6494-1. Maintenance and care
Cleaning and protecting
the vehicle exterior............. 650
Cleaning and protecting
the vehicle interior .............. 653
4-2. Maintenance
Maintenance
requirements ........................ 656
General maintenance .......... 659
Emission inspection and
maintenance (I/M)
programs................................ 663 4-3. Do-it-yourself
maintenance
Do-it-yourself service
precautions ........................... 664
Hood ........................................... 667
Positioning a floor jack ......... 668
Engine compartment ............ 670
Tires............................................ 684
Tire inflation pressure........... 693
Wheels ....................................... 697
Air conditioning filter ........... 699
Electronic key battery........... 701
Checking and replacing
fuses ........................................ 703
Headlight aim ........................... 716
Light bulbs ................................. 719

6664-3. Do-it-yourself maintenance
CAUTIONThe engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury,
observe the following precautions: ■
When working on the engine compartment ●
Keep hands, clothing and tools away from the moving fans and engine drive belt.●
Be careful not to touch the engine, radiator , exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.●
Do not leave anything that may burn easi ly, such as paper and rags, in the engine
compartment.●
Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.●
Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.■
When working near the electric cooling fans or radiator grille
Be sure the “ENGINE START STOP” switch is off.
With the “ENGINE START STOP” switch in IGNITION ON mode, the electric
cooling fans may automatically start to run if the air conditioning is on and/or the
coolant temperature is high. (  P. 6 7 8 )■
Safety glasses
Wear safety glasses to prevent flying or falling material, fluid spray, etc. from getting
in your eyes.
NOTICE■
If you remove the air cleaner filter
Driving with the air cleaner filter removed may cause excessive engine wear due to
dirt in the air.

6994-3. Do-it-yourself maintenance
4
Maintenance and care Air conditioning filter The air conditioning filter must be changed regularly to maintain air condi-
tioning efficiency.
■ Removal method
Turn the “ENGINE START STOP” switch off.
Open the glove box. Lift and
remove the partition.
Remove the glove box cover.STEP 1
STEP 2
STEP 3