check engine light Lexus IS250 2013 Using the Bluetooth audio system / LEXUS 2013 IS250,IS350 (OM53B64U) User Guide

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4-3. Do-it-yourself maintenance
Light bulbs
You may replace the following bulbs yourself. For more information about
replacing other light bulbs, contact your Lexus dealer.
■Preparing a replacement light bulb
Check the wattage of the light bulb being replaced. ( P. 525)
■ Removing the engine compartment cover
 P. 3 9 3
■ Front bulb locations
Parking lights (vehicles with
halogen headlights)
Headlight high beam and daytimerunning lights (vehicles with halogen headlights)
Headlight high beam
(vehicles with discharge
headlights)

5
When trouble arises
469
5-2. Steps to take in an emergency
■If the tire pressure warning system is inoperative
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 a different set of tires has been selected using the satellite switch
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) 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 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.)
●If tire chains are used
■If the tire pressure warning light freque ntly 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 your Lexus dealer.
■Customization that can be configured at Lexus dealer
The vehicle speed linked seat belt reminder buzzer can be disabled.
(Customizable features  P. 5 4 2 )

480
5-2. Steps to take in an emergency
Follow the correction procedures.After taking the specified steps to co rrect the suspected problem, check
that the warning light turns off.
Interior
buzzerExterior buzzerWa r n i n g m e s s a g eDetailsCorrection
procedure
Once
(Comes on for 10 seconds.)
(Flashing)
Indicates that an
attempt was made
to start the engine
without the elec-
tronic key being
present, or the
electronic key was
not functioning
normally.
Start the engine
with the elec-
tronic key
present.
*
Once3 times
(Flashing)
Indicates that a
door other than
the driver’s door
has been opened
or closed with the
“ENGINE START
STOP” switch in
any mode other
than OFF and the
electronic key
outside of the
detection area.
Confirm the loca-
tion of the elec-
tronic key.

488
5-2. Steps to take in an emergency
■When using the compact spare tire
As the compact spare tire is not equipped with the tire pressure warning valve and
transmitter, low inflation pressure of the spare tire will not be indicated. Also, if you
replace the compact spare tire after the tire pressure warning light comes on, the
light remains on.
■If you have a flat rear tire on a road covered with snow or ice
Install the compact spare tire on the front of the vehicle. Perform the following steps
and fit tire chains to the rear tires.
Replace a front tire with the compact spare tire.
Replace the flat rear tire with the tire removed from the front of the vehi-
cle.
Fit tire chains to the rear tires.
■After completing the tire change
The tire pressure warning system must be reset. ( P. 4 0 8 )
CAUTION
■Using the tire jack
Improper use of the tire jack may lead to death or serious injuries due to the vehicle
suddenly falling off the jack.
●Do not use the tire jack for any purpose other than replacing tires or installing and
removing tire chains.
●Only use the tire jack that comes with this vehicle for replacing a flat tire.
Do not use it on other vehicles, and do no t use other tire jacks for replacing tires
on this vehicle.
●Always check that the tire jack is securely set to the jack point.
●Do not put any part of your body under the vehicle while it is supported by a jack.
●Do not start or run the engine while your vehicle is supported by the jack.
●Do not raise the vehicle while someone is in it.
●When raising the vehicle, do not put an object on or under the jack.
●Do not raise the vehicle to a height greate r than that required to replace the tire.
STEP1
STEP2
STEP3

5
When trouble arises
501
5-2. Steps to take in an emergency
■Avoiding a discharged battery
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic, etc.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle
is not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The batt ery recharges automatically during driving.)
■When the battery is removed or discharged
Make sure that the key is not inside the vehicle when recharging or replacing the
battery. The key may be locked in the vehicle if the alarm is activated. ( P. 9 4 )
Maintain the engine speed of th e second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine ha s started, remove the jumper
cables in the exact reverse ord er in which they were con-
nected.
Once the engine starts, have the ve hicle checked at your Lexus dealer
as soon as possible.STEP5
STEP6

518
6-1. Specifications
Electrical system
DifferentialFront
Rear
*: Your Lexus vehicle is filled with “Toyota Genuine Differential Gear Oil” at the factory. Use Lexus approved “Toyota Genuine Differential Gear Oil” or an
equivalent oil of matching quality that satisfies the above specifications. Please
contact your Lexus dealer for further details.
Battery
Open voltage* at
68 F (20 C):12.6 12.8 V Fully charged
12.2 
12.4 V Half charged
11.8 
12.0 V Discharged
(*: Voltage checked 20 minutes after
the engine and all the lights are turned
off)
Charging rates5 A max.
Oil capacity0.74 qt. (0.70 L, 0.61 Imp. qt.)
Oil typeHypoid gear oil API GL-5
Oil viscosityAbove 0 F (-18 C): SAE90
Below 0 F (-18 C): SAE80W or SAE80W-90
Oil capacity
IS350:
1.42 qt. (1.35 L, 1.19 Imp. qt.)
IS250: 1.20 qt. (1.15 L, 1.01 Imp. qt.)
Oil type and viscosity*Toyota Genuine Differential Gear Oil LT 75W-85
GL-5 or equivalent

572
Alphabetical index
Emergency flashersSwitch ...................................................... 454
Engine Compartment .......................................391
Engine switch........................................ 140
Hood....................................................... 388
How to start the engine................... 140
Identification number.......................... 511
If the engine will not start ............... 492
Ignition switch....................................... 140
Overheating.........................................504
Engine compartment cover .............393
Engine coolant Capacity ................................................... 517
Checking ...............................................398
Preparing and checking before winter ......................................201
Engine coolant temperature gauge....................................................... 153
Engine immobilizer system................... 91
Engine oil Capacity ...................................................514
Checking ...............................................395
Preparing and checking before winter ......................................201
EPS ................................................................191
Event data recorder ............................... 22 First-aid kit storage belt .....................350
Floor mat .................................................. 349
Fluid
Brake ....................................................... 400
Washer................................................... 405
Fog lights Switch .......................................................... 171
Wattage ................................................. 525
Footwell lights ..........................................319
Front fog lights Switch .......................................................... 171
Wattage ................................................. 525
Front passenger occupant classification system ............................ 110
Front passenger's seat belt
reminder light ..................................... 465F

579
Alphabetical index
TachometerTacho indicator .................................... 153
Tachometer ............................................ 153
Tail lights Switch ........................................................ 167
Talk switch*............................................. 293
Telephone switch* ................................292
Theft deterrent system Alarm .......................................................... 93
Engine immobilizer system ............... 91
Theft prevention labels ..........................96
Tire inflation pressure...........................418
Tire information Glossary ................................................ 535
Size ........................................................... 532
Tire identification number ............. 532
Uniform tire quality grading......... 533
Tires Chains ....................................................... 201
Checking ............................................... 406
If you have a flat tire.......................... 483
Inflation pressure .................................418
Inflation pressure sensor................408
Information............................................530
Replacing............................................... 483
Rotating tires ........................................ 406
Size ........................................................... 520
Snow tires................................................ 201 Tools ...........................................................483
Total load capacity .............................. 200
Towing
Dinghy towing .................................... 206
Emergency towing........................... 455
Trailer towing ...................................... 205
TRAC............................................................ 191
Traction control ........................................ 191
Transmission shift switches .................147
Trip meter ................................................. 153
Trunk Extending trunk space ....................346
Opener ...................................................... 53
Trunk light Trunk light ................................................. 54
Wattage ..................................................525
Turn signal lights Replacing light bulbs ........................ 444
Switch........................................................ 150
Wattage ..................................................525T
*: For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.