
508
4-3. Do-it-yourself maintenance
RX350/270_EE
12ABS NO. 150 AVehicle stability control
13EPS60 AElectric power steering system
14ALT140 A
IG1 MAIN, TOWING BATT,
DEICER, TOWING, STOP, RDI FAN
NO. 1, FILTER, RR DEF, AIR SUS,
HEATER, ABS NO. 2, H-LP CLN,
PBD, ECU-IG1 NO. 1, ECU-IG1 NO.
3, GAUGE NO. 1, ECU-IG1 NO. 2,
E P S , F R W I P, R R W I P, F R WA S H , R R
WASH, RH S-HTR, LH S-HTR, TAIL,
PANEL, D/L ALT B, FR FOG, FR
DOOR, FL DOOR, RR DOOR, RL
DOOR, PSB, P-SEAT LH, P-SEAT
RH, TI&TE, FUEL OPN, DR LOCK,
OBD, RR FOG, S/ROOF, 4WD,
INVERTER, ECU-ACC, P/POINT,
CIG, RADIO NO. 2
15AMP130 AAudio system
16EFI MAIN30 A
Multiport fuel injection system/
sequential multiport fuel injection sys-
tem, electronic controlled transmis-
sion, EFI NO. 1, EFI NO. 2, F/PMP
17AMP230 AAudio system
18IG2 MAIN30 AIGN, GAUGE NO. 2, ECU IG 2
19IP J/B25 APow e r d o o r l o c k s y s t e m
20STR LOCK20 AStarter system
21RAD NO. 315 AMeters and gauges, navigation sys-
tem, audio system
22HAZ15 AEmergency flashers
FuseAmpereCircuit
RX350_270_EE_48D77E.book 508 ページ 2014年1月24日 金曜日 午前10時4分

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
RX350_270_EE_48D77E.book 512 ページ 2014年1月24日 金曜日 午前10時4分

515
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
35GAUGE NO. 27. 5 AGauge and meters
36RH S-HTR15 ASeat heater (right-side)
37LH S-HTR15 ASeat heater (left-side)
■After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb may
need replacement. (→P. 5 1 6 )
●If the replaced fuse blows again, have the vehicle inspected by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
■If there is an overload in the circuit
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any other
object in place of a fuse.
●Always use a genuine Lexus fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
●Do not modify the fuse or fuse boxes.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by any authorized
Lexus dealer or repairer, or another duly qualified and equipped professional as
soon as possible.
FuseAmpereCircuit
RX350_270_EE_48D77E.book 515 ページ 2014年1月24日 金曜日 午前10時4分

639
Alphabetical index
RX350/270_EE
Child safety
Airbag precautions ............................. 137
Back door precautions ...................... 66
Child restraint system........................ 142
Child-protectors ................................... 57
How your child should wear
the seat belt ............................................ 91
Installing child restraints ...................152
Moon roof precautions ....................107
Power window lock switch.............. 101
Power window precautions .......... 103
Removed electronic key battery
precautions....................................... 503
Seat belt precautions .......................... 92
Seat heater precautions .................440
Battery precautions
...................................................... 481, 594
Child-protectors ...................................... 57
Cleaning
Exterior.................................................... 452
Interior .....................................................455
Seat belts................................................456
Clock* ....................................................... 432
Coat hooks .............................................. 442
Coin holder ............................................. 427
Condenser .............................................. 478
Console box ........................................... 426
Coolant
Engine coolant .................................... 477Cooling system
Engine overheating ..........................598
Cornering assist sensors ................... 248
Cruise control
Cruise control ..................................... 230
Dynamic radar cruise control ......234
Cup holders ............................................ 423
Curtain shield airbags ........................... 131
Customizable features....................... 622
Daytime running light system .......... 220
Defogger*
Rear window.......................................... 321
Side mirror .............................................. 321
Dimensions ............................................. 606
Display
Multi-information display............... 203
Trip information.................................. 206
Warning message ............................ 552
Do-it-yourself maintenance ............... 461
Door courtesy lights
Door courtesy lights .......................... 417
Wattage ................................................... 619
Door lock
Back door ................................................ 60
Side door .................................................. 56
Wireless remote control .................. 53
Door pockets ......................................... 422
D
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
RX350_270_EE_48D77E.book 639 ページ 2014年1月24日 金曜日 午前10時4分

642
Alphabetical index
RX350/270_EE
Headlights
Discharge headlight
precautions....................................... 530
Replacing light bulbs......................... 516
Switch ........................................................ 217
Wattage................................................... 619
Head-up display
Display contrast adjustment
switch...................................................... 212
Display position adjustment
switch...................................................... 212
Head-up display main switch ........ 212
Heaters
Seat heaters .......................................... 439
Side mirror* ............................................ 321
Steering wheel .................................... 437
Height control
Electronically modulated air
suspension ......................................... 256
Hill-start assist control ..........................271
Hood .......................................................... 465
Hooks
Cargo ...................................................... 446
Coat.......................................................... 442
Horn ............................................................ 195
HUD
Display contrast adjustment
switch...................................................... 212
Display position adjustment
switch...................................................... 212
Head-up display main switch ........ 212Identification
Engine ..................................................... 607
Vehicle.................................................... 607
Ignition switch ......................................... 180
Illuminated entry system ...................... 417
Immobilizer system ................................. 115
Indicator lights ........................................ 198
Initialization
Items to initialize ................................. 633
Inside rear view mirror .......................... 96
Instrument panel light control
buttons ..................................................... 197
Interior lights
Interior lights .......................................... 417
Switch ........................................................ 418
Wattage ................................................... 619
iPod* .......................................................... 344
Jack
Positioning a floor jack ................... 466
Vehicle-equipped jack....................572
Jack handle ............................................. 572I
J
RX350_270_EE_48D77E.book 642 ページ 2014年1月24日 金曜日 午前10時4分

643
Alphabetical index
RX350/270_EE
Keyless entry ............................................. 53
Keys
Electronic key ......................................... 26
Engine switch........................................ 180
If the electronic key does not
operate properly ............................. 591
If you lose your keys ........................ 590
Key number ............................................. 26
Keyless entry ........................................... 53
Keys ............................................................. 26
Mechanical key...................................... 26
Wireless remote control key .......... 53
Lexus parking assist monitor*
Licence plate lights
Wattage................................................... 619
Light bulbs
Replacing ................................................ 516
Wattage................................................... 619
Lights
Door courtesy lights........................... 417
Emergency flasher switch ............. 532
Fog light switch ................................... 222
Hazard light switch ........................... 532
Headlights switch ................................ 217
Interior light switch ............................. 418
Luggage compartment light ........... 63
Outer foot lights ................................... 417
Overhead courtesy light................. 418
Personal light switch ......................... 418
Replacing light bulbs......................... 516Scuff lights ............................................... 417
Shift lever light ....................................... 417
Turn signal lever................................... 193
Vanity lights............................................ 431
Wattage ................................................... 619
Lock steering column .......................... 183
Luggage compartment lights
Switch ......................................................... 63
Wattage ................................................... 619
Luggage cover ...................................... 448
Maintenance
Do-it-yourself maintenance ........... 461
Maintenance data .............................606
Maintenance requirements .......... 458
Meter
Instrument panel light control ....... 197
Meters ....................................................... 196
Mirrors
Inside rear view mirror ...................... 96
Side mirror heaters* .......................... 321
Side mirrors............................................. 98
Vanity mirrors ....................................... 431
Moon roof ................................................ 104
MP3 disc* ............................................... 337
Multi-display light control ................. 434
Multi-information display
Displays item........................................ 206
Switches ................................................. 203
Trip information.................................. 206
Window close suggestion
mode .................................................... 208K
L
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
M
RX350_270_EE_48D77E.book 643 ページ 2014年1月24日 金曜日 午前10時4分

645
Alphabetical index
RX350/270_EE
Replacing
Electronic key battery....................... 501
Fuses ....................................................... 504
Light bulbs.............................................. 516
Tires .......................................................... 572
Wireless remote control
battery ................................................... 501
Roof luggage carrier ........................... 295
Scuff lights ..................................................417
Seat belts
Adjusting the seat belt........................ 89
Child restraint system
installation.............................................152
Cleaning and maintaining
the seat belts .....................................456
Emergency locking retractor ........... 91
How to wear your seat belt .............89
How your child should wear
the seat belt ............................................ 91
Pregnant women, proper seat
belt use ................................................... 92
Reminder light .....................................546
Seat belt pretensioners ...................... 92
Seat heaters ............................................ 439
Seat position memory ............................. 81
Seat ventilators ...................................... 439Seats
Adjustment .......................................73, 77
Adjustment precautions............ 76, 79
Child seats/child restraint
system installation ............................ 152
Cleaning ................................................ 455
Flattening seatbacks ............................ 74
Head restraint .........................................87
Power easy access system.............. 84
Properly sitting in the seat............... 129
Seat heaters.......................................... 439
Seat position memory .......................... 81
Seat ventilators ................................... 439
Service reminder indicators ............ 198
Shift lever
Automatic transmission....................186
If the shift lever cannot
be shifted from “P”.........................589
Shift lever light ......................................... 417
Shift lock system ................................... 589
Side airbags ............................................... 131
Side mirror
Adjusting and folding ......................... 98
Mirror position memory ..................... 81
Side monitor*
Side turn signal lights
Wattage ................................................... 619
S
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
RX350_270_EE_48D77E.book 645 ページ 2014年1月24日 金曜日 午前10時4分