check engine light LEXUS IS350 2022 Owner's Manual

3367-2. Steps to take in an emergency
●Is the fuel tank empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The light will go off after several driving
trips.
If the light does not go off even after several
trips, contact your Lexus dealer as soon as
possible.
■Electric power steering system warning
light (warning buzzer)
When the battery charge becomes insuffi-
cient or the voltage temporarily drops, the
electric power steeri ng system warning
light may come on and the warning buzzer
may sound.
■When the tire pressure warning light
comes on
Inspect the tires to check if a tire is punc-
tured.
If a tire is punctured: P.341
If none of the tires are punctured:
Turn the engine switch off then turn it to
IGNITION ON mode. Check if the tire
pressure warning light comes on or blinks.
If the tire pressure wa rning light blinks for
approximately 1 minute then stays on
There may be a malfunction in the tire
pressure warning system. Have the vehicle
inspected by your Lexus dealer immedi-
ately.
If the tire pressure warning light comes
on
1 After the temperature of the tires has
lowered sufficiently, check the inflation
pressure of each tire and adjust them to
the specified level.
2 If the warning light does not turn off
even after several minutes have
elapsed, check that the inflation pres-
sure of each tire is at the specified level
and perform initialization. ( P.301)
■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, adjust-ing the tire inflation pressure will turn off the
warning light (after a few minutes).
■When a tire is replaced with the spare
tire
The spare tire is not equipped with a tire
pressure warning valve and transmitter. If a
tire goes flat, the tire pressure warning light
will not turn off even th ough the flat tire has
been replaced with the spare tire.
■Conditions that the tire pressure warn-
ing system may not function properly
P.299
WARNING
■If both the ABS and the brake system
warning lights remain on
Stop your vehicle in a safe place immedi-
ately and contact your Lexus dealer.
The vehicle will become extremely
unstable during br aking, and the ABS
system may fail, which could cause an
accident resulting in death or serious
injury.
■When the electric power steering
system warning light comes on
When the light comes on yellow, the
assist to the power st eering is restricted.
When the light comes on red, the assist
to the power steering is lost and handling
operations of the steering wheel become
extremely heavy.
When steering wheel operations are
heavier than usual, grip the steering
wheel firmly and operate it using more
force than usual.
■If the tire pressure warning light
comes on
Be sure to observe the following precau-
tions.
Failure to do so could cause a loss of
vehicle control and result in death or
serious injury.
●Decelerate to the lowest appropriate
speed as soon as possible. Do not
drive over 50 mph (80 km/h).

3387-2. Steps to take in an emergency
■Warning messages
The warning messages explained below
may differ from the actual messages
according to operation conditions and vehi-
cle specifications.
■Warning buzzer
A buzzer may sound when a message is dis-
played.
The buzzer may not be audible if the vehicle
is in a noisy location or if the audio system
volume is high.
■If “Engine Oil Level Low Add or
Replace” is displayed
The engine oil level is low. Check the level
of the engine oil, and add if necessary.
This message may appear if the vehicle is
stopped on a slope. Move the vehicle to a
level surface and check to see if the mes-
sage disappears.
WARNING
TPMS (tire pressure warning system)
malfunctions may occu r for a variety of
reasons, including the installation of
replacement or alternate tires or wheels
on the vehicle that prevent the TPMS
(tire pressure warning system) from func-
tioning properly. Always check the
TPMS (tire pressure warning system)
malfunction telltale after replacing one
or more tires or wheels on your vehicle to
ensure that the replacement or alternate
tires and wheels allow the TPMS (tire
pressure warning system) to continue to
function properly.
NOTICE
■To ensure the tire pressure warning
system operates properly
Do not install tires wi th different specifi-
cations or makers, as the tire pressure
warning system may not operate prop-
erly.
If a warning message is dis-
played
The multi-information display
shows warnings for system malfunc-
tions and incorrectly performed
operations, and messages that indi-
cate a need for maintenance.
When a message is displayed, per-
form the appropriate corrective
action for the message.
If a warning message is displayed
again after the appropriate actions
have been performed, contact your
Lexus dealer.
Additionally, if a warning light
comes on or flashes at the same
time that a warning message is dis-
played, take the appropriate cor-
rective action for the warning light.
(  P.329)

3497-2. Steps to take in an emergency
7
When trouble arises
One of the following may be the cause
of the problem:
There may not be sufficient fuel in
the vehicle’s tank.
Refuel the vehicle.
 The engine may be flooded.
Try to restart the engine again fol-
lowing correct starting procedures.
( P.130)
 There may be a malfunction in the
engine immobilizer system.
( P.60)
One of the following may be the cause
of the problem:
 The battery may be discharged.
( P.353)
 The battery terminal connections
may be loose or corroded.
( P.294) The engine starting system may be
malfunctioning due to an electrical
problem such as electronic key battery
depletion or a blown fuse. However, an
interim measure is available to start the
engine. (
P.349)
One of the following may be the cause
of the problem:
 One or both of the battery terminals
may be disconnected. ( P.294)
 The battery may be discharged.
( P.353)
 There may be a malfunction in the
steering lock system.
Contact your Lexus dealer if the problem
cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the
following steps can be used as an
interim measure to start the engine if
the engine switch is functioning nor-
mally:
1 Push the parking brake switch to
check that the parking brake is set.
( P.139)
Parking brake indicator will come on.
If the engine will not start
If the engine will not start even
though correct starting procedures
are being followed ( P.130), con-
sider each of the following points:
The engine will not start even
though the starter motor oper-
ates normally.
The starter motor turns over
slowly, the interior lights and
headlights are dim, or the horn
does not sound or sounds at a low
volume.
The starter motor does not turn
over
The starter motor does not turn
over, the interior lights and head-
lights do not turn on, or the horn
does not sound.
Starting the engine in an emer-
gency

3708-1. Specifications
*: The fluid capacity is a reference quantity.
If replacement is necessary, contact your Lexus dealer.
Ignition system (spark plug)
IS350
AWD/IS350/IS300 AWD
IS300IS500
MakeDENSO FK20HBR8NGK DILFR7K9GDENSO FK20HBR-J8
Gap0.031 in. (0.8 mm)0.035 in. (0.9 mm)0.031 in. (0.8 mm)
NOTICE
■Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
Electrical system (battery)
Open voltage at 68°F (20°C):
12.3 V or higher
(Check the voltage 20 minutes after the engine
and all lights are turned off.)
If the voltage is lower than the standard value,
charge the battery.
Charging rates5 A max.
Automatic transmission
Fluid capacity*
IS350 (2WD)10.0 qt. (9.5 L, 8.4 Imp. qt.)
IS350
AWD/IS300
AWD (AWD)
10.6 qt. (10.0 L, 8.8 Imp. qt.)
IS3009.2 qt. (8.7 L, 7.7 Imp. qt.)
IS50011.4 qt. (10.8 L, 9.5 Imp. qt.)
Fluid typeToyota Genuine ATF WS
NOTICE
■Automatic transmission fluid type
Using transmission fluid other than the abov e type may cause abnormal noise or vibra-
tion, or damage the transm ission of your vehicle.

413What to do if... (Troubleshooting)
depleted?
In this case, the engine can be started in a
temporary way. (P.352)
 Is the battery discharged?
( P.353)
 Is the engine switch in IGNITION
ON mode?
If you cannot release the shift lever by
depressing the brake pedal with the engine
switch in IGNITION ON mode. ( P.135)
 It is locked automatically to prevent
theft of the vehicle. ( P.130)
 Is the window lock switch pressed?
The power window except for the one at
the driver’s seat cannot be operated if the
window lock switch is pressed. ( P.115)
 The auto power off function will be
operated if the vehicle is left in
ACCESSORY or IGNITION ON
mode (the engine is not running) for
a period of time. ( P.132) 
The seat belt reminder light is flash-
ing
Are the driver and the front passenger
wearing the seat belts? ( P.332)
The parking brake indicator is on
Is the parking brake released? ( P.139)
Depending on the situation, other
types of warning buzzer may also
sound. (P.329, 338)
 Did anyone inside the vehicle open
a door during setting the alarm?
The sensor detects it and the alarm sounds.
(P.61)
Do one of the following to deactivate
or stop the alarm:
 Unlock the doors.
 Open the trunk.
 Turn the engine switch to ACCES-
SORY or IGNITION ON mode, or
start the engine. (The alarm will be
deactivated or stopped after a few
seconds.)
 Is the electronic key left inside the
vehicle or the moon roof opened?
Check the message on the multi-informa-
The shift lever cannot be shifted
from P even if you depress the
brake pedal
The steering wheel cannot be
turned after the engine is
stopped
The windows do not open or
close by operating the power
window switches
The engine switch is turned off
automatically
A warning buzzer sounds during
driving
An alarm is activated and the
horn sounds
A warning buzzer sounds when
leaving the vehicle

418Alphabetical Index
Hood................................................................285
How to start the engine ........................... 130
Identification number ...............................365
If the engine will not start ....................... 349
If your vehicle has to be stopped in an
emergency ................................................ 320
Ignition switch (engine switch) ............ 130
Overheating................................................. 357
Tachometer ............................................ 69, 70
Engine coolant Capacity .........................................................369
Checking ....................................................... 292
Preparing and checking before winter......................................................................... 234
Engine coolant temperature gauge 69, 70
Engine immobilizer system ........................ 60
Engine oil Capacity ......................................................... 367
Checking .......................................................289
Preparing and checking before winter......................................................................... 234
Warning light ...............................................330
Engine oil maintenance data ....................291
Engine oil pressure gauge ...........................79
Engine oil temperature gauge ...................79
Engine switch ................................................. 130 Auto power off function ........................... 132
Changing the engine switch modes.. 132
If your vehicle has to be stopped in an
emergency ................................................ 320
Enhanced Vehicle Stability Control (Enhanced VSC) ...................................... 229
Enhanced VSC (Enhanced Vehicle Stabil- ity Control) .................................................. 229
EPS (Electric Power Steering) .............. 229 Warning light ............................................... 332
Event data recorder (EDR) ............................7
F
First-aid kit storage belt ............................ 258
Flat tire Tire pressure warning system ............. 299 Vehicles with a spare tire.........................341
Floor mats ...........................................................22
Fluid Automatic transmission ..........................370
Brake ..................................................................371
Washer ...........................................................296
Footwell lights ............................................... 253 Wattage ..........................................................375
Front passenger occupant classification system .............................................................. 36
Front seats Adjustment ..................................................... 102
Cleaning ......................................................... 274
Correct driving posture ............................ 23
Driving position memory ........................ 104
Head restraints............................................. 107
Memory recall function............................ 105
Power easy access system .................... 104
Seat heaters ................................................... 251
Seat position memory .............................. 104
Seat ventilators ............................................. 251
Front side marker light Light switch .................................................... 145
Replacing light bulbs ..................................314
Front turn signal lights Replacing light bulbs....................... 314, 315
Turn signal lever .......................................... 138
Wattage ..........................................................375
Fuel Capacity ......................................................... 367
Fuel gauge............................................... 69, 70
Fuel pump shut off system.....................328
Information .................................................... 376
Refueling...........................................................157
Type .................................................................. 367
Warning light ............................................... 332
Fuel consumption Average fuel economy .............................. 78
Current fuel consumption ........................ 78
Fuel filler door If the fuel filler do or cannot be opened
........................................................................... 351

419Alphabetical Index
Refueling .......................................................... 157
Fuel gauge ................................................. 69, 70
Fuel pump shut off system........................ 328
Fuses .................................................................. 310
G
Garage door opener ................................. 263
Gauges ............................................................... 69
Gear Position................................................... 80
G-force................................................................79
Glove box ....................................................... 256
Glove box light ............................................. 257
H
Head restraints ...............................................107
Headlight aim ..................................................312
Headlights Automatic High Beam system.............. 147
Light switch .....................................................145
Replacing light bulbs..................................314
Heated steering wheel ................................251
Heaters Automatic air conditioning system ... 243
Heated steering wheel..............................251
Outside rear view mirrors .................... 245
Seat heaters .................................................... 251
High mounted stoplight Replacing light bulbs..................................314
Hill-start assist control ............................... 229
Hood Open ...............................................................285
Hooks Coat hooks ...................................................260
Retaining hooks (floor mat)......................22
Horn ..................................................................... 110
I
I/M test ............................................................ 282
Identification Engine .............................................................365 Vehicle ............................................................364
Ignition switch (engine switch)................ 130 Auto power off function............................132
Changing the engine switch modes ..132
If your vehicle has to be stopped in an emergency .................................................320
Indicators ........................................................... 66
Initialization Items to initialize ........................................ 398
Maintenance.......................................278, 291
Power windows ............................................. 114
Tire pressure warning system ............ 300
Inside door handle lights........................... 253
Inside rear view mirror ................................. 110
Instrument panel light control ................... 75
Intercooler...................................................... 293
Intercooler coolant Capacity ........................................................ 369
Checking ....................................................... 292
Interior lights.................................................. 253 Front interior light ......................................253
Rear interior light........................................253
Intuitive parking assist...................... 201, 203 Function ..........................................................203
Warning message .................................... 205
J
JackPositioning a floor jack ........................... 285
Vehicle-equipped jack ........................... 342
Jack handle .................................................... 342
Jam protection function Moon roof ........................................................ 117
Power windows ............................................. 114
K
Keyless entrySmart access system with push-button start ................................................................... 97
Wireless remote control .......................... 88

424Alphabetical Index
SwitchesActivating the Automatic High Beam147
Automatic High Beam system.............. 147
Brake Hold switch ...................................... 142
Door lock switches ...................................... 92
Driving mode select switch ...................227
Driving position memory switches .... 104
Dynamic radar cruise control with full-speed range switch .........................187
Emergency flashers switch ................... 320
Engine switch................................................ 130
Garage door opener switches .......... 263
Heated steering wheel switch...............251
Ignition switch............................................... 130
Instrument panel light control switches ............................................................................ 75
Intuitive parking assist switch............... 204
Light switches ................................................145
LTA (Lane Tracing Assi st) switch...... 180
Meter control switches .............................. 76
Moon roof switches .................................... 116
“ODO TRIP” switch .....................................74
Outside rear view mi rror switches .......112
Paddle shift switches ....................... 136, 137
Parking brake switch .................................139
PCS OFF switch ......................................... 168
PKSB (Parking Support Brake) switch ........................................................................... 217
Power door lock switch ............................ 92
Power window switches ............................114
RCTA switch....................................................211
Rear sunshades switch ........................... 262
Rear window and outside rear view mir- ror defoggers switch ............................ 243
Seat heater switches ..................................251
Seat ventilator switches ............................251
Snow mode switch .....................................136
“SOS” button .................................................. 54
Tilt and telescopic steering control switch .......................................................................... 109
Tire pressure warning reset switch ... 301
Trunk opener main switch ....................... 96 Trunk opener switch ...................................95
Vehicle-to-vehicle di
stance switch.... 187
VSC OFF switch .......................................230
Window lock switch.................................... 115
Windshield wiper and washer switch150
Windshield wiper de-icer...................... 249
T
Tachometer............................................... 69, 70 Rev indicator ................................................... 72
Rev peak............................................................ 73
Tail lights Light switch .................................................... 145
Replacing light bulbs ..................................314
The Secondary Collision Brake ............ 230
Theft deterrent system Alarm.....................................................................61
Engine immobilizer system......................60
Theft prevention labels ............................... 62
Tire inflation pressure Maintenance data ...................................... 372
Tire inflation pressure display function..........................................................................299
Warning light ...............................................333
Tire information ............................................ 378 Glossary .........................................................382
Size ................................................................... 380
Tire identification number...................... 379
Uniform Tire Quality Grading ............. 381
Tire pressure display .................................. 299
Tire pressure warning system Function ..........................................................299
Initializing....................................................... 300
Installing tire pres sure warning valves
and transmitters...................................... 300
Registering ID codes ...............................302
Warning light ...............................................333
Tires Chains .............................................................235
Checking .......................................................296
If you have a flat tire ....................................341
Inflation pressure ....................................... 304

426Alphabetical Index
Pre-collision braking.................................. 167
RCTA (Rear Cross Traffic Alert) ...... 334
Seat belt .......................................................... 332
Warning lights............................................... 329 ABS ....................................................................331
Brake hold operated indicator ........... 335
Brake Override System ...........................331
Brake system ............................................... 329
Charging system .......................................330
Drive-Start Control ....................................331
Electric power steering .......................... 332
High coolant temperature .................... 329
Intuitive parking assist OFF indicator333
Low engine oil pressure.........................330
Low fuel level ............................................... 332
LTA indicator ............................................... 333
Malfunction indicator lamp...................330
Parking brake indicator .......................... 335
PKSB OFF indicator ................................ 334
Pre-collision system ................................. 334
RCTA OFF indicator............................... 334
Seat belt reminder light .......................... 332
Slip indicator ................................................ 335
SRS....................................................................330
Tire pressure ................................................ 333
Warning messages ..................................... 338
Washer Adding ............................................................ 296
Preparing and checking before winter......................................................................... 234
Switch ............................................................... 150
Washing and waxing.................................. 270
Weight Cargo capacity.............................................128
Load limits .......................................................128
Weight ............................................................ 364
Wheels ............................................................. 305 Size.................................................................... 372
Window lock switch ...................................... 115
Windows Power windows..............................................114
Rear window defogger .......................... 245 Washer ............................................................ 150
Windshield wipers ....................................... 150
Winter driving tips....................................... 234
Wireless remote control Battery-Saving Function............................98
Locking/Unlocking .................................... 88
Replacing the battery .............................. 308
For information regarding the equipment listed below, refer to
the “NAVIGATION AND MULTI-
MEDIA SYSTEM OWNER’S
MANUAL”.
· Navigation system
· Audio/visual system
· Lexus parking assist monitor
· Lexus Enform