2014 LEXUS RX270 power steering

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

538
5-1. Essential information
RX350/270_EESecurely attach a cable or chain to the towing eyelet.
Take care not to damage the vehicle body.
Enter the vehicle being towed and start the engine.
If the engine does not start, turn the “ENGINE START STOP” switch to
IGNITION ON mode.
For models with electronically modulated air suspension: Change
the vehicle height to “N” mode and end the vehicle height opera-
tion. (
→P. 2 5 6 )
Shift the shift lever to N and release the parking brake.
When the shift lever cannot be shifted: →P. 589
■While towing
If the engine is not running, the power assist for the brakes and steering will not
function, making steering and braking more difficult.
■Wheel nut wrench
Wheel nut wrench is installed in the luggage compartment. (→P. 5 7 2 )
STEP5
STEP6
STEP7
STEP8
RX350_270_EE_48D77E.book 538 ページ ２０１４年１月２４日　金曜日　午前１０時４分

544
5-2. Steps to take in an emergency
RX350/270_EE
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to the
system operating abnormally and possibly cause an accident. Have the
vehicle inspected by any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional immediately.
Warning lightWarning light/Details
Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system; or
• The electronic automatic transmission control system
SRS warning light
Indicates a malfunction in:
• The SRS airbag system; or
• The seat belt pretensioner system
ABS warning light
Indicates a malfunction in:
•The ABS; or
• The brake assist system
Electric power steering system warning light (warning
buzzer)
Indicates a malfunction in the EPS (Electric Power Steering)
system
RX350_270_EE_48D77E.book 544 ページ ２０１４年１月２４日　金曜日　午前１０時４分

548
5-2. Steps to take in an emergency
RX350/270_EE
■If the malfunction indicator lamp comes on while driving
For some models, the malfunction indicator lamp will come on if the fuel tank
becomes completely empty. If the fuel tank is empty, refuel the vehicle immediately.
The malfunction indicator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Front passenger detection sensor, passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■Electric power steering system warning light (warning buzzer)
When the battery charge becomes insufficient or the voltage temporarily drops,
the electric power steering system warning light may come on and the warning
buzzer may sound.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pushing the tire
pressure warning reset switch will not turn off the tire pressure warning light.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few min-
utes).
RX350_270_EE_48D77E.book 548 ページ ２０１４年１月２４日　金曜日　午前１０時４分

550
5-2. Steps to take in an emergency
RX350/270_EE
●If tire chains are used
●Vehicles with a full-size spare tire: If the spare tire is in a location subject to poor
radio wave signal reception
●Vehicles with a full-size spare tire: If a large metallic object which can interfere
with signal reception is put in the luggage compartment
■If the tire pressure warning light frequently comes on after blinking for 1 minute
If the tire pressure warning light frequently comes on after blinking for 1 minute
when the “ENGINE START STOP” switch is turned to IGNITION ON mode, have
it checked by any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
■Customization
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features →P. 6 2 2 )
CAUTION
■When the electric power steering system warning light comes on
The steering wheel may become extremely heavy.
If the steering wheel becomes heavier than usual when operating, hold firmly and
operate using more force than usual.
■If the tire pressure warning light comes on
Be sure to observe the following precautions. Failure to do so could cause loss of
vehicle control and result in death or serious injury.
●Stop your vehicle in a safe place as soon as possible. Adjust the tire inflation pres-
sure immediately.
●If the tire pressure warning light comes on even after tire inflation pressure adjust-
ment, it is probable that you have a flat tire. Check the tires. If a tire is flat, change
it with the spare tire and have the flat tire repaired by the nearest authorized
Lexus dealer or repairer, or another duly qualified and equipped professional.
●Avoid abrupt maneuvering and braking. If the vehicle tires deteriorate, you could
lose control of the steering wheel or the brakes.
■If a blowout or sudden air leakage should occur
The tire pressure warning system may not activate immediately.
RX350_270_EE_48D77E.book 550 ページ ２０１４年１月２４日　金曜日　午前１０時４分

556
5-2. Steps to take in an emergency
RX350/270_EE
Indicates a malfunction in the cruise control system
or the radar cruise control system (If equipped)
Press the “ON-OFF” button once to deactivate the
system, and then press the button again to reactivate
the system.
(If equipped)
Indicates a malfunction in the automatic headlight
leveling system
Indicates a malfunction in:
• The SRS airbag system; or,
• The seat belt pretensioner system
Indicates a malfunction in:
•The ABS; or,
• The brake assist system
Indicates a malfunction in the EPS (Electric Power
Steering) system
Warning messageDetails
RX350_270_EE_48D77E.book 556 ページ ２０１４年１月２４日　金曜日　午前１０時４分

5
603
5-2. Steps to take in an emergency
When trouble arises
RX350/270_EE
If your vehicle has to be stopped in an emergency
CAUTION
■If the engine has to be turned off while driving
Power assist for the brakes and steering wheel will be lost, making the brake pedal
harder to depress and the steering wheel heavier to turn. Decelerate as much as
possible before turning off the engine.
Only in an emergency, such as if it becomes impossible to stop the vehicle
in the normal way, stop the vehicle using the following procedure:
Steadily step on the brake pedal with both feet and firmly
depress it.
Do not pump the brake pedal repeatedly as this will increase the
effort required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by the road.
Stop the engine.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce vehi-
cle speed as much as possible.
To stop the engine, press and
hold the “ENGINE START
STOP” switch for 2 consecutive
seconds or more, or press it
briefly 3 times or more in suc-
cession.
Stop the vehicle in a safe place by the road.
STEP1
STEP2
STEP3
STEP4
STEP3
Press and hold for 2 seconds or more,
or press briefly 3 times or more
STEP4
STEP5
RX350_270_EE_48D77E.book 603 ページ ２０１４年１月２４日　金曜日　午前１０時４分

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