Page 509 of 652

509
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
23ETCS10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
24RAD NO. 110 AAudio system, navigation system
25AM27. 5 AStarter system
26ECU-B NO. 27. 5 A
Air conditioning system, audio system,
vehicle stability control system, power
windows
27MAYDAY/TEL7. 5 AMAYDAY/TEL
28IMMOBI7. 5 AIMMOBI
29ALT-S7. 5 ACharging system
30DRL7. 5 ADaytime running light system
31IGN10 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
32DOME10 A
Vanity mirror lights, luggage compart-
ment lights, interior lights, personal
lights, door courtesy lights, footwell
lights, scuff lights
33ECU-B NO. 110 A
Tilt and telescopic steering, multiplex
communication system, meters and
gauges, driving position memory,
power seats, power back door, head-
up display, outside rear view mirror,
steering sensor
34EFI NO. 110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, electronic controlled transmis-
sion
FuseAmpereCircuit
RX350_270_EE_48D77E.book 509 ページ 2014年1月24日 金曜日 午前10時4分
Page 510 of 652

510
4-3. Do-it-yourself maintenance
RX350/270_EE
35A/F*110 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
WIP-S*27. 5 ACruise control
36ECU-IG1 NO. 410 A
Adaptive front-lighting system, air
conditioning system, rear window
defogger, vehicle stability control sys-
tem, electric cooling fans
37BK/UP LP7. 5 ABack-up lights
38ECU-IG1 NO. 515 AAir conditioning system
39ECU-IG1 NO. 610 A
Adaptive front-lighting system, head
light cleaner, cruise control, electroni-
cally modulated air suspension, vehi-
cle stability control, air conditioning
system
40EFI NO. 210 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
41F/ P M P*215 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem
42DEICER25 AWindshield wipers and washer
43STOP7. 5 A
Vehicle stability control, vehicle
dynamics integrated management,
stop lights, electronic controlled
transmission, multiport fuel injection
system/sequential multiport fuel injec-
tion system, shift lock control system,
starter system
44TOW IN G BAT T20 ATr a i l e r b a t t e r y
FuseAmpereCircuit
RX350_270_EE_48D77E.book 510 ページ 2014年1月24日 金曜日 午前10時4分
Page 514 of 652

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
RX350_270_EE_48D77E.book 514 ページ 2014年1月24日 金曜日 午前10時4分
Page 549 of 652

5
549
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
■When a tire is replaced with a spare tire
Vehicles with a compact spare tire
The compact spare tire is not equipped with a tire pressure warning valve and trans-
mitter. If a tire goes flat, the tire pressure warning light will not turn off even though
the flat tire has been replaced with the spare tire. Replace the spare tire with the
repaired tire and adjust the tire inflation pressure. The tire pressure warning light
will go off after a few minutes.
Vehicles with a full-size spare tire
The spare tire is also equipped with the tire pressure warning valve and transmitter.
The tire pressure warning light will turn on if the tire inflation pressure of the spare
tire is low. If a tire goes flat, even though the flat tire is replaced with the spare tire,
the tire pressure warning light does not turn off. Replace the spare tire with the
repaired tire and adjust to the proper tire inflation pressure. The tire pressure warn-
ing light will turn off after a few minutes.
■If the tire pressure warning system is not functioning
The tire pressure warning system will be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmitters are used
●If the ID code on the tire pressure warning valves and transmitters is not regis-
tered in the tire pressure warning computer
●If the tire inflation pressure is 500 kPa (5.1 kgf/cm2 or bar, 73psi) or higher
The tire pressure warning system may be disabled in the following conditions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies are nearby
●If a radio set at similar frequencies is in use in the vehicle
●If a window tint that affects the radio wave signals is installed
●If there is a lot of snow or ice on the vehicle, in particular around the wheels or
wheel housings
●If non-genuine Lexus wheels are used (Even if you use Lexus wheels, the tire
pressure warning system may not work properly with some types of tires.)
RX350_270_EE_48D77E.book 549 ページ 2014年1月24日 金曜日 午前10時4分
Page 591 of 652
5
591
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
If the electronic key does not operate properly
Locking and unlocking the side doors and key linked functions
Use the mechanical key (→P. 2 7 )
in order to perform the following
operations (driver’s door only):
Locks all the doors
Closes the windows and moon
roof (turn and hold)
Unlocks all the doors
For some models:
An alarm will sound if the alarm is
set. (→P. 122)
Opens the windows and moon
roof (turn and hold)
If communication between the electronic key and vehicle is interrupted
(→P. 37) or the electronic key cannot be used because the battery is
depleted, the smart entry & start system and wireless remote control can-
not be used. In such cases, the doors can be opened and the engine can be
started by following the procedure below.
RX350_270_EE_48D77E.book 591 ページ 2014年1月24日 金曜日 午前10時4分
Page 629 of 652
629
6-2. Customization
6
Vehicle specifications
RX350/270_EE
Automatic
air condi-
tioning sys-
tem
(
→P. 3 1 4 )
Switching
between outside
air and recircu-
lated air mode
linked to
“AUTO” switch
operation
AutoManualO——O
A/C auto switch
operationAutoManualO——O
Exhaust gas sen-
sor sensitivityStandard-3 to 3O——O
Driving
position
memory
(
→P. 8 1 )
Driver’s seat
movement when
exiting the vehi-
cle (on some
models)
Full
Off
O—OO
Pa r t i a l
Selecting
whether the
driver's door or
all doors are
linked to the
power easy
access system
Driver’s
doorAll the
doors———O
Meter
(→P. 1 7 1 )Eco Driving Indi-
cator LightOn Off—OOO
Multi-infor-
mation dis-
play
(
→P. 2 0 8 )
Window close
suggestion
mode
OnOff—OOO
ItemFunctionDefault
settingCustom-
ized
setting
RX350_270_EE_48D77E.book 629 ページ 2014年1月24日 金曜日 午前10時4分
Page 631 of 652
631
6-2. Customization
6
Vehicle specifications
RX350/270_EE
*: This function cannot be customized unless power window operation using the
wireless remote control is enabled.
Tu r n s i g n a l
lever
(→P. 1 9 3 )Ti m e s o f f l a s h i n g
of the lane
change signal
flashers
3
5
O——O
7
9
11
Off
Lexus park-
ing assist-
sensor
(
→P. 2 4 8 )
Buzzer volume31 to 5O——O
Detection dis-
tance of the front
center sensors
Fa rNearO——O
Detection dis-
tance of the rear
center sensors
Fa rNearO——O
Display setting
(when Lexus
parking assist-
sensor is operat-
ing)
All sensors
displayedNo sensors
displayedO——O
ItemFunctionDefault
settingCustom-
ized
setting
RX350_270_EE_48D77E.book 631 ページ 2014年1月24日 金曜日 午前10時4分
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