2014 Lexus IS F check engine light

5
When trouble arises
475
5-2. Steps to take in an emergency
IS F_U
■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.
●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 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 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 4 )

5
When trouble arises
489
5-2. Steps to take in an emergency
IS F_U
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 sec- onds.)
Indicates that an
attempt was
made to start the
engine without
the electronic
key being
present, or the
electronic key
was not function-
ing 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
and closed with
the “ENGINE
START STOP”
switch in any
mode other than
OFF and the
electronic key
has been taken
out of the detec-
tion area.
Confirm the loca-
tion of the elec-
tronic key.

5
When trouble arises
509
5-2. Steps to take in an emergency
IS F_U
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●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 vehi-
cle 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 dis-
charge, and the engine may be unable to start. (The battery recharges automat-
ically 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 1 )
Start the engine of the second vehicle. Increase the engine
speed slightly and maintain at that level for approximately 5
minutes to recharge the battery of your vehicle.
Open and close any of the doors with the “ENGINE START
STOP” switch OFF.
Maintain the engine speed of the second vehicle and turn the
“ENGINE START STOP” switch to IGNITION ON mode,
then start the vehicle’s engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at your Lexus dealer
as soon as possible.STEP2
STEP3
STEP4
STEP5

524
6-1. Specifications
IS F_U
Ignition system
Electrical system
Differential
*: 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.
Spark plug
Make
GapDENSO FK20HBR11
0.043 in. (1.1 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the engine.
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 capacity1.42 qt. (1.35 L, 1.19 Imp. qt.)
Oil type and viscosity*“Toyota Genuine Differential Gear Oil
LX 75W-85 GL-5” or equivalent

572
Alphabetical index
IS F_U
Daytime running light system ........... 168
Defogger*Rear window........................................ 232
Side mirrors .......................................... 232
Dimension ................................................. 518
Dinghy towing ......................................... 221
Display Dynamic radar crui se control ........ 181
Satellite switch mode .......................348
Trip information .................................... 162
Warning message............................. 479
Do-it-yourself maintenance ............. 397
Door courtesy lights Door courtesy lights......................... 334
Wattage..................................................528
Door pockets..........................................344
Doors Door lock.................................32, 43, 46
Door windows ....................................... 78
Side mirrors ............................................. 76
Driver's seat belt reminder light ..... 472
Driving Correct posture .................................... 94
Procedures .............................................128
Driving position memory ...................... 56
Electric power steering ....................... 201
Electronic key If the electronic key does not operate properly ........................... 505
Emergency flashers Switch ......................................................460
Emergency, in case of If a warning message is
displayed ............................................ 479 If the electronic key does not
operate properly............................505
If the engine will not start ............... 502
If the shift lever cannot be shifted from P................................... 503
If the vehicle has a discharged
battery .................................................508
If the warning buzzer sounds...... 469
If the warning light turns on.......... 469
If you have a flat tire ........................ 493
If you lose your keys ........................ 504
If you think something is
wrong ...................................................467
If your vehicle becomes stuck ...... 514
If your vehicle has to be stopped in an emergency ...........515
If your vehicle needs to be towed ..................................................... 461
If your vehicle overheats....................511
Engine
ACCESSORY mode....................... 138
Compartment ..................................... 403
Engine switch ........................................ 138
Hood ....................................................... 400
How to start the engine ................... 138
Identification number ........................ 519
If the engine will not start ............... 502
Ignition switch ....................................... 138
Overheating ............................................511
Engine compartment cover ............. 404
Engine coolant Capacity ................................................ 523
Checking............................................... 409
Preparing and checking
before winter...................................... 218D
E

573
Alphabetical index
IS F_U
Engine coolant temperature gauge ....................................................... 154
Engine immobilizer system ................. 88
Engine oil Capacity................................................. 522
Checking ............................................... 406
Preparing and checking before winter ...................................... 218
EPS............................................................... 201
Event data recorder................................ 22
First-aid kit storage belt......................362
Floor mat.................................................... 361
Fluid Brake ...........................................................411
Washer ..................................................... 416
Fog lights Switch ........................................................ 170
Footwell lights........................................ 334
Front fog lights Switch ........................................................ 170
Front passenger occupant
classification system ......................... 108
Front passenger's seat belt
reminder light ...................................... 472
Front seats
Adjustment .............................................. 55
Driving position memory ................. 56
Seat position memory ........................ 60
Front turn signal lights
Switch ..........................................................151
Wattage ................................................. 528 Fuel
Capacity .................................................. 521
Fuel gauge.............................................. 154
Fuel pump shut off system............ 468
Gas station information ................. 584
Information ............................................529
Refueling................................................... 85
Fuel door .....................................................85
Fuel filler door ...........................................85
Fuel pump shut off system.................468
Fuses ..........................................................438
Garage door opener ..........................365
Gas station information......................584
Gauges ...................................................... 154
Glove box ................................................339
Glove box light ......................................339
Hands-free system for mobile phone* ...................................................303
Hazard lights Switch...................................................... 460
Head restraints Adjusting .................................................. 62
Headlight aim ......................................... 452
Headlight cleaner ...................................176
Headlights Discharge headlight
precautions....................................... 458
Replacing light bulbs ........................454
Switch........................................................ 166
Wattage ................................................. 528
F
G
H
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

579
Alphabetical index
IS F_U
Warning lightsAnti-lock brake system .................. 470
Brake assist system .......................... 470
Brake system ....................................... 469
Charging system ............................... 470
Electric power steering system
warning light ..................................... 470
Low fuel level........................................472
Malfunction indicator lamp .......... 470
Master warning light .........................472
Open door ............................................472
Pre-collision system ......................... 470
Pretensioners ...................................... 470
Seat belt reminder light ...................472
SRS airbags .......................................... 470
Tire pressure warning
light.........................................................472 Warning messages
Automatic transmission
fluid ....................................................... 483
Dynamic radar
cruise control.........................481, 483
Engine oil level ................................... 483
Engine oil maintenance ................. 483
Engine oil pressure .......................... 480
Engine oil temperature .................. 480
Headlight................................................. 481
Hood ....................................................... 483
Intuitive parking assist ...........481, 483
Moon roof ............................................ 483
Open door ........................................... 483
Parking brake ..................................... 483
Pre-collision system...............481, 483
Smart access system with push-button start ........................... 489
Steering lock.......................................... 481
Trunk ....................................................... 483
Washer fluid ........................................ 483
Washer
Checking ................................................ 416
Preparing and checking before winter ..................................... 218
Switch.........................................................172
Washing and waxing ...........................384
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.