Page 474 of 652
474
4-3. Do-it-yourself maintenance
RX350/270_EE■Adding engine oil
RX270
If the oil level is below or near the
low level mark, add engine oil of
the same type as that already in the
engine.
RX350
If the oil level is below or near the
low level mark, add engine oil of
the same type as that already in the
engine.
Make sure to check the oil type and prepare the items needed before
adding oil.
Remove the oil filler cap.
Add engine oil slowly, checking the dipstick.
Install the filler cap, turning it clockwise.
Oil grade→P. 6 1 0
Oil quantity
(Low→Full)1.5 L (1.6 qt., 1.3 Imp. qt.)
ItemsClean funnel
STEP1
STEP2
STEP3
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Page 508 of 652

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
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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 513 of 652
513
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE
7ECU-IG1 NO. 110 A
Multiplex communication system,
steering sensor, shift lock control sys-
tem, tilt and telescopic steering, auto-
matic transmission system, power
back door, pre-crash safety system,
vehicle stability control system, tire
pressure warning system
8S/ROOF30 AMoon roof
9FUEL OPN7. 5 AFuel filler door opener
10PSB30 APre-crash seat belt
11TI & TE30 ATilt and telescopic steering system
12DR LOCK10 ADR LOCK
13FR FOG7. 5 AFront fog lights
14P- S E AT L H30 APower seat (left-side)
154WD7. 5 AAW D s y s t e m
16INVERTER20 A
17RR FOG7. 5 ARear fog lights
18D/L ALT B25 A
Multiplex communication system,
power door lock system, power back
door
19EPS10 AElectric power steering system
20ECU-IG1 NO. 210 ALexus parking assist-sensor, AWD
system, pre-crash seat belt
FuseAmpereCircuit
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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 518 of 652
518
4-3. Do-it-yourself maintenance
RX350/270_EE
Replacing light bulbs
■Headlight high beams
Right side:
Open the cap.
Move the washer fluid filler
opening to allow easy access to
the light bulbs.
Unplug the connector while
depressing the lock release.
Turn the bulb base counterclock-
wise.
STEP1
STEP2
STEP3
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Page 520 of 652
520
4-3. Do-it-yourself maintenance
RX350/270_EE■Halogen headlight low beams (if equipped)
Turn the bulb base counterclock-
wise.
Unplug the connector while
depressing the lock release.
Replace the light bulb, and install
the bulb base.
Align the 3 tabs on the light bulb
with the mounting, and insert.
Turn and secure the bulb base.
Shake the bulb base gently to
check that it is not loose, turn the
headlight low beams on once and
visually confirm that no light is leak-
ing through the mounting.
STEP1
STEP2
STEP3
STEP4
RX350_270_EE_48D77E.book 520 ページ 2014年1月24日 金曜日 午前10時4分
Page 521 of 652
521
4-3. Do-it-yourself maintenance
4
Maintenance and care
RX350/270_EE■Front turn signal light
Turn the bulb base counterclock-
wise.
Remove the light bulb.
STEP1
STEP2
RX350_270_EE_48D77E.book 521 ページ 2014年1月24日 金曜日 午前10時4分