Page 598 of 652
598
5-2. Steps to take in an emergency
RX350/270_EE
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 any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
The coolant level is satisfactory if it
is between the “FULL” and “LOW”
lines on the reservoir.
Reservoir
“FULL” line
“LOW” line
“Radiator cap
The following may indicate that your vehicle is overheating.
●“ENGINE OVERHEAT” is shown on the multi-information display.
●Steam comes out from under the hood.
STEP1
STEP2
STEP3
STEP4
RX350_270_EE_48D77E.book 598 ページ 2014年1月24日 金曜日 午前10時4分
Page 599 of 652

5
599
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EEAdd coolant if necessary.
(→P. 4 7 0 )
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 operate and to check for coolant
leaks from the radiator or hoses.
The fans operate when the air conditioning 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 difficult 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 any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest authorized Lexus
dealer or repairer, or another duly qualified and equipped pro-
fessional.
STEP5
STEP6
STEP7
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Page 635 of 652
Index
635
RX350/270_EE
Abbreviation ........................... 636
Alphabetical index.................. 637
What to do if... ........................ 650
For vehicles with a navigation 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
• Lexus parking assist monitor
• Audio/video system
• Rear window and outside rear view mirror defogging
RX350_270_EE_48D77E.book 635 ページ 2014年1月24日 金曜日 午前10時4分
Page 636 of 652
636
RX350/270_EE
Abbreviation
Abbreviation/Acronym list
ABBREVIATIONSMEANING
2WD2 Wheel Drive
4WD4 Wheel Drive
A/CAir Conditioning
ABSAnti-lock Brake System
AFSAdaptive Front-lighting System
AI-SHIFTArtificial Intelligence Shift control
AW DAll Wheel Drive
CRSChild Restraint System
DISPDisplay
ECOEconomy/Ecology
ECTElectronic Controlled Transmission
ELREmergency Locking Retractor
EPSElectric Power Steering
GVMGross Vehicle Mass
LEDLight Emitting Diode
MPACMaximum Permissible Axle Capacity
PCSPre-Crash Safety system
PWRPo w e r
SRSSupplemental Restraint System
TRCTr a c t i o n C o n t r o l
VDIMVehicle Dynamics Integrated Management
VINVehicle Identification Number
VSCVehicle Stability Control
RX350_270_EE_48D77E.book 636 ページ 2014年1月24日 金曜日 午前10時4分
Page 637 of 652

637
RX350/270_EE
Alphabetical index
Alphabetical index
A/C*
Air conditioning filter........................499
Automatic air conditioning
system*..................................................314
ABS ..............................................................271
ACCESSORY mode .......................... 180
Active torque control
4WD mode ............................................ 271
Adaptive front lighting system ........ 219
AFS .............................................................. 219
Air conditioning filter .......................... 499
Air conditioning system*
Air conditioning filter........................499
Automatic air conditioning
system*..................................................314
Airbags
Airbag manual on/off
system ....................................................163
Airbag operating conditions..........133
Airbag precautions for your
child ......................................................... 137
Airbag warning light......................... 544
Curtain shield airbag operating
conditions.............................................134
Curtain shield airbag
precautions.......................................... 137
General airbag precautions .......... 137
Locations of airbags............................ 131
Modification and disposal of
airbags .................................................... 141
Proper driving posture ...........129, 137Side airbag operating
conditions ............................................ 134
Side airbag precautions................... 137
SRS airbags ..............................................131
Alarm ........................................................... 122
All-wheel drive lock switch ...............277
Antenna .................................................... 329
Anti-lock brake system ........................ 271
Armrest ......................................................441
Assist grips .............................................. 443
Audio input ............................................. 379
Audio system*
Antenna .................................................. 329
Audio input ........................................... 379
AUX port .............................................. 379
Bluetooth
® audio system ............... 361
CD player/changer ......................... 330
Hands-free system for
mobile phone................................... 384
iPod .......................................................... 344
MP3/WMA disc................................337
Optimal use........................................... 377
Portable audio device..................... 379
Radio........................................................ 326
Steering wheel audio switch..........381
USB memory ...................................... 353
USB port.................................... 344, 353
Automatic air conditioning system*
Air conditioning filter ....................... 499
Air conditioning system* ................. 314
Automatic headlight leveling
system .................................................... 220
A
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
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