2015 LEXUS RX350 air condition

5
When trouble arises
7995-2. Steps to take in an emergency
If your vehicle overheats
Correction procedures
Stop the vehicle in a safe place and turn off the air conditioning
system, and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down
sufficiently, inspect the hoses and
radiator core (radiator) for any
leaks.
Radiator
Cooling fans If a large amount of coolant leaks,
immediately contact your Lexus
dealer.
The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
Radiator capThe following may indicate that your vehicle is overheating.
● “ENGINE OVERHEAT” is shown on the multi-information display.
● Steam comes out from under the hood. STEP 1
STEP 2
STEP 3
STEP 4

8005-2. Steps to take in an emergency
Add coolant if necessary.
(
 P. 6 7 1 )
Water can be used in an emer-
gency if coolant is unavailable.
Start the engine and turn the air conditioning system on to check
that the radiator cooling fans op erate and to check for coolant
leaks from the radiator or hoses. The fans operate when the air conditio ning system is turned on immedi-
ately after a cold start. Confirm that the fans are operating by checking
the fan sound and air flow. If it is diff icult to check these, turn the air con-
ditioning system on and off repeatedly.
(The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact your Lexus dealer.
If the fans are operating:
Have the vehicle inspected at the nearest Lexus dealer.STEP 5
CAUTION■
To prevent an accident or injury when in specting under the hood of your vehicle●
If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injuries such as burns.●
Keep hands and clothing (especially a tie, a scarf or a muffler) away from the fans
and belts. Failure to do so may cause the hands or clothing to be caught, resulting
in serious injury.
●
Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may resu lt from hot coolant and steam released
under pressure.STEP 6
STEP 7

8286-1. Specifications
Glossary of tire terminology Tire related term Meaning
Cold tire inflation pres-
sure Tire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sure The maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressure Cold tire inflation pressure recommended by a man-
ufacturer
Accessory weight The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Curb weight The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp ed, air conditioning and
additional weight optional engine
Maximum loaded vehicle
weight The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight 150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

8426-2. Customization
Seat belt reminder ( 
P. 74 7 )
Automatic air conditioning system ( 
P. 345, 353)Interior light control On Off O —
O —
O O
Exterior light control On Off O —
O —
O O
Shift lever lights On Off — — — — —
O
Function Default
setting Custom-
ized
setting
Vehicle speed linked
seat belt reminder
buzzer On Off — — — — —
O
Function Default
setting Custom-
ized
setting
A/C auto switch
operation Auto Manual O —
O — —
O
Exhaust gas sensor
sensitivity Standard -3 to 3 O —
O — —
OFunction Default
setting Custom-
ized
setting

Index
867Abbreviation list .................... 868
Alphabetical index ................. 870
What to do if... ....................... 882
For vehicles with a navigatio n system, refer to the “Naviga-
tion System Owner's Manual ” for information regarding
the equipment listed below. • Navigation system
• Air conditioning controls
• Windshield wiper de-icer
• Rear view monitor system
• Intuitive parking assist
• Audio/video system
• Rear window and outside rear view mirror defogging

868Abbreviation list
Abbreviation/Acronym list ABBREVIATIONS MEANING
2WD 2 Wheel Drive
4WD 4 Wheel Drive
A/C Air Conditioning
ABS Anti-lock Brake System
AI-SHIFT Artificial Intelligence Shift control
ALR Automatic Locking Retractor
AW D All Wheel Drive
BSM Blind Spot Monitor
CRS Child Restraint System
DISP Display
ECO Economy/Ecology
ECT Electronic Controlled Transmission
ECU Electronic Control Unit
EDR Event Data Recorder
ELR Emergency Locking Retractor
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GCWR Gross Combination Weight Rating
GVWR Gross Vehicle Weight Rating
I/M Emission Inspection and Maintenance
LATCH Lower Anchors and Tethers for Children
LED Light Emitting Diode
MMT Methylcyclopentadienyl Manganese Tricarbonyl
M + S Mud and Snow
MTBE Methyl Tertiary Butyl Ether

870Alphabetical index
Alphabetical index A/C*
Air conditioning filter .......................699
Automatic air conditioning
system*....................................345, 353
ABS............................................................. 269
ACCESSORY mode .......................... 165
Active torque control
AWD mode ......................................... 269
Air conditioning system*
Air conditioning filter .......................699
Automatic air conditioning
system*....................................345, 353
Airbags
Airbag operating conditions.......... 122
Airbag precautions for your
child......................................................... 127
Airbag warning light ........................ 745
Curtain shield airbag operating
conditions............................................. 123
Curtain shield airbag
precautions ......................................... 127
Front passenger occupant
classification system........................ 132
General airbag precautions .......... 127
Locations of airbags............................ 119
Modification and disposal of
airbags .....................................................131
Proper driving post ure ............. 117, 127
Side airbag operating
conditions............................................. 123
Side airbag precautions ................... 127
SRS airbags ............................................. 119 Alarm ............................................................ 112
All-wheel drive lock switch .............. 275
Antenna ........................................ 380, 489
Anti-lock brake system ...................... 269
Armrest .................................................... 622
Assist grips .............................................. 624
Audio input* ................................. 412, 554
Audio system*
Antenna.................................................. 489
Audio input ........................................... 554
AUX port .............................................. 554
Bluetooth ®
audio system ............. 530
CD player/changer ..........................492
Hands-free system for mobile
phone................................................... 560
iPod ............................................................510
MP3/WMA disc.................................501
Optimal use ......................................... 552
Portable audio device..................... 554
Radio ....................................................... 483
Steering wheel audio switch........ 556
USB memory ...................................... 520
USB port .................................... 510, 520A

871Alphabetical index
Audio system
(Lexus Display Audio system)
Antenna ..................................................380
Audio input ............................................. 412
AUX port ................................................ 412
Bluetooth ®
audio system ............... 414
CD player ............................................. 383
Hands-free system for mobile
phone................................................... 433
iPod .......................................................... 394
MP3/WMA disc ............................... 384
Optimal use.......................................... 428
Portable audio device....................... 412
Radio ...................................................... 368
Steering wheel audio switch........ 430
USB memory ...................................... 402
USB port.................................... 394, 402
Automatic air conditioning system*
Air conditioning filter ....................... 699
Automatic air conditioning
system* ...................................345, 353
Automatic headlight leveling
system ...................................................... 214
Automatic light control system ..........211
Automatic transmission
Automatic transmission............171, 178
If the shift lever cannot be
shifted from P ..................................... 791
M mode....................................................183
S mode ..................................................... 174
AUX port ...................................... 412, 554
Auxiliary boxes .......................... 606, 627 Back door
Back door .................................................56
Wireless remote control ................... 49
Back-up lights
Replacing light bulbs ..........................719
Wattage ................................................... 817
Battery
Checking ................................................ 681
If the vehicle has a discharged
battery ..................................................796
Preparing and checking
before winter ....................................302
Blind Spot Monitor...............................286
Bluetooth ®
audio* .....................414, 530
Bluetooth ®
phone* ................. 433, 560
Bottle holders ........................................ 600
Brake
Fluid............................................................ 814
Parking brake ....................................... 189
Brake assist.............................................. 269
Break-in tips ............................................. 155
BSM............................................................286
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”. B