2014 LEXUS RX270 air conditioning

512
4-3. Do-it-yourself maintenance
RX350/270_EE■Driver’s side instrument panel
FuseAmpereCircuit
1P/ P O I N T15 APow e r o u t l e t
2ECU-ACC10 A
Navigation system, air conditioning
system, audio system, multiplex com-
munication system, multi-information
display, head-up display
3CIG15 APow e r o u t l e t
4RADIO NO. 27. 5 AAudio system, navigation system
5GAUGE NO. 110 A
Emergency flashers, navigation sys-
tem, head-up display, air conditioning
system, charging system
6ECU-IG1 NO. 310 A
Outside rear view mirror, windshield
wipers and washer, seat heaters,
moon roof, air conditioning system
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514
4-3. Do-it-yourself maintenance
RX350/270_EE
21PA N E L10 A
Switch illumination, navigation system,
electronically modulated air suspen-
sion, automatic transmission system,
audio system, multi-information dis-
play, air conditioning system, multiplex
communication system
22TA I L10 A
Front position lights, tail lights, license
plate lights, front fog lights, towing
converter, rear fog lights
23AIR SUS20 AElectronically modulated air suspen-
sion
24P- S E AT R H30 APower seat right side
25OBD7. 5 AOn-Board diagnosis
26FR DOOR25 AFront power window (right-side), out-
side rear view mirror
27RR DOOR25 ARear power window (right-side)
28FL DOOR25 AFront power window (left-side), out-
side rear view mirror
29RL DOOR25 ARear power window (left-side)
30FR WASH25 AWindshield wipers and washer
31RR WIP15 AWindshield wipers and washer
32RR WASH20 AWindshield wipers and washer
33FR WIP30 AWindshield wipers and washer
34ECU IG210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, SRS airbag system, stop lights,
electronic controlled transmission,
steering lock system
FuseAmpereCircuit
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5
541
5-1. Essential information
When trouble arises
RX350/270_EE
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably needs
adjustment or repair. Contact any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional as soon as possible.
■Visible symptoms
●Fluid leaks under the vehicle.
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points
higher than normal.
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost touches
the floor
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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
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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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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
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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
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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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