2018 Lexus ES350 ignition

5078-2. Steps to take in an emergency
ES350_OM_OM06134U_(U)
8
When trouble arises
Connect the jumper cables accordin g to the following procedure:
Connect a positive jumper cable clamp to the positive (+) battery terminal
on your vehicle.
Connect the clamp on the other end of the positive cable to the positive (+)
battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery terminal on the
second vehicle.
Connect the clamp at the other end of th e negative cable to a solid, station-
ary, unpainted metallic po int away from the battery and any moving parts,
as shown in the illustration.
Start the engine of the second vehicle. Increase the engine speed slightly and
maintain at that level for approximatel y 5 minutes to recharge the battery of
your vehicle.
Open and close any of the doors of your vehicle with the engine switch off.
Maintain the engine speed of the second vehicle and start the engine of your
vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the exact
reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at your Lexus dealer as soon
as possible.4
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ES350_OM_OM06134U_(U)9-1. Specifications
Cooling system
Capacity
9.7 qt. (9.2 L, 8.1 Imp.qt.)
Coolant type
Use either of the following:
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based non-sili-
cate, non-amine, non-nitrite, and non-borate cool-
ant with long-life hybrid organic acid technology
Do not use plain water alone.
Ignition system
Spark plug
MakeDENSO FK20HR11
Gap0.043 in. (1.1 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
(Voltage is checked 20 minutes after the engine and all
lights are turned off.)
Charging rates5 A max.

560What to do if... (Troubleshooting)
ES350_OM_OM06134U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, ne w genuine mechanical keys can be made
by your Lexus dealer. ( →P. 93)
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. (→ P. 94)
●Is the electronic key battery weak or depleted? ( →P. 457)
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. (→P. 155)
●Is the electronic key left inside the vehicle?
When locking the doors, make sure that you have the electronic key on your
person.
●The function may not operate properly du e to the condition of the radio wave.
(→ P. 110)
●Is the child-protector lock set?
The rear door cannot be opened from in side the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(→ P. 98)
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open th e trunk as usual. Take the key out from the trunk.
(→ P. 103)
If you have a problem, check the foll owing before contacting your Lexus
dealer.
The doors cannot be locked, unlocked, opened or closed
You lose your keys
The doors cannot be locked or unlocked
The rear door cannot be opened
The trunk lid is closed with the electronic key left inside

561What to do if... (Troubleshooting)
ES350_OM_OM06134U_(U)
●Did you press the engine switch while firmly depressing the brake pedal?
(→ P. 154)
●Is the shift lever in P? ( →P. 156)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 108)
●Is the steering wheel unlocked? (→ P. 157)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (→P. 505)
●Is the battery discharged? ( →P. 506)
●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. 162)
●It is locked automatically to prevent theft of the vehicle. ( →P. 156)
●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. 131)
●The auto power off function will be operated if the vehicle is left in ACCES-
SORY or IGNITION ON mode (the engine is not running) for a period of
time. ( →P. 156)
If you think something is wrong
The engine does not start
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

562What to do if... (Troubleshooting)
ES350_OM_OM06134U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (→P. 483)
●The parking brake indicator is on
Is the parking brake released? ( →P. 164)
Depending on the situation, other types of warning buzzer may also sound.
(→ P. 482, 488)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. (→ P. 67)
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside the vehicle or the moon roof opened?
Check the message on the multi-information display. (→ P. 488)
●When a warning light turns on or a warning message is displayed, refer to
P. 482, 488.
●Stop the vehicle in a safe place and repl ace the flat tire with the spare tire.
(→ P. 491)
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 513)
A warning buzzer sounds during driving
An alarm is activated and the horn sounds
A warning buzzer sounds when leaving the vehicle
A warning light turns on or a warning message is displayed
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck

568Alphabetical index
ES350_OM_OM06134U_(U)
EngineAccessory mode................................. 155
Compartment......................................429
Engine switch ........................................ 154
Hood ........................................................ 427
How to start the engine ................... 154
Identification number ........................ 517
If the engine will not start............... 502
Ignition switch (engine switch)..... 154
Overheating .......................................... 510
Engine compartment cover ............. 430
Engine coolant Capacity ................................................ 520
Checking................................................434
Preparing and checking before winter .................................... 262
Engine coolant temperature gauge .........................................................76
Engine immobilizer system ................. 65
Engine oil Capacity .................................................. 518
Checking................................................. 431
Preparing and checking before winter .................................... 262
Enhanced VSC ..................................... 257
EPS (Electronic Po wer Steering)
Function ................................................. 258
Warning light ...................................... 483
Event data recorder (EDR) ...................10 Flat tire ........................................................ 491
Floor mats....................................................26
Fluid
Automatic transmission .................... 521
Brake.......................................................... 521
Washer ................................................... 439
Fog lights Switch ........................................................ 172
Footwell light ........................................... 377
Front passenger occupant classification system ............................44
Front personal lights ........................... 378
Front seats Adjustment............................................... 116
Cleaning...................................................415
Correct driving posture .................... 28
Driving position memory................... 117
Head restraints .......................................121
Power easy access system ...............117
Seat heaters .......................................... 376
Seat position memory ......................... 117
Seat ventilators.................................... 376
Front side marker lights Light switch.............................................165
Replacing light bulbs ....................... 467
Wattage ................................................. 524
Front turn signal lights Replacing light bulbs ....................... 465
Turn signal lever ...................................163
Wattage ................................................. 524F

569Alphabetical index
ES350_OM_OM06134U_(U)
FuelCapacity .................................................. 518
Fuel gauge ................................................ 76
Fuel pump shut off system.............. 481
Information ........................................... 525
Refueling................................................... 177
Type ........................................................... 518
Warning light ...................................... 483
Fuel filler door .......................................... 177 Refueling................................................... 177
When the fuel filler door cannot be opened ...........................179
Fuel pump shut off system.................. 481
Fuses .......................................................... 459
Garage door opener .......................... 393
Gauges .........................................................76
Glove box ................................................. 381
Grocery bag hooks ............................. 384
Hands-free system (for cellular phone)
*........................ 327
Head restraints ......................................... 121
Headlights Adaptive Front-lighting System (AFS) ................................................... 484
Light switch ............................................ 165
Replacing light bulbs ........... 464, 470
Wattage ..................................................524 Heaters
Air conditioning system .................................................. 366
Heated steering wheel ................... 376
Outside rear view mirrors ............ 370
Seat heaters .......................................... 376
Hill-start assist control ........................257
Hood .......................................................... 427
Hooks Cargo hooks .......................................384
Coat hooks ........................................... 392
Grocery bag hooks .........................384
Retaining hooks (floor mat)............. 26
Horn............................................................. 125
I/M test ......................................................424
Identification Engine ....................................................... 517
Vehicle ...................................................... 517
Ignition switch (engine switch) ......... 154
Illuminated entry system ....................379
Immobilizer system .................................65
Indicators ..................................................... 74
Initialization Maintenance ..........................................419
Tire pressure warning system ................................. 441
Initiators (tire pressure warning system) ................................ 448
G
H
I
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.

575Alphabetical index
ES350_OM_OM06134U_(U)
Sun visors ................................................. 386
Sun shadeRear.......................................................... 389
Rear door.............................................. 389
Roof............................................................ 135
Switches Audio remote control switches
*............................................ 274
Automatic High Beam switch ...... 168
BSM (Blind spot monitor) switch....................................................249
Cruise control switch........................ 219
Door lock switch ................................... 97
Driving mode select switch .......... 247
Driving position memory switches .................................................. 118
Dynamic radar cruise control switch ...................................207
Emergency flashers switch ........... 474
Engine switch ........................................ 154
Fog light switch ..................................... 172
Garage door opener switches ...............................................393
Heated steering wheel switch....................................................376
Ignition switch ....................................... 154
Intuitive parking assist switch ....... 223
Light switches ....................................... 165
LDA (Lane Departure Alert with steering control) switch ..... 198
Meter control switches ....................... 81
Moon roof switches........................... 134
Outside rear view mirror switches ................................................ 128
Power door lock switch .................... 97 Power window switches ....................131
Rear sunshade switch .....................389
Rear window and outside
rear view mirror defoggers
switch ................................................... 370
Seat heater switches ........................ 376
Seat ventilator switches .................. 376
“SOS” button ....................................... 404
Talk switch
*......................................... 337
Telephone switches
*...................... 337
Tilt and telescopic steering control switch .................. 124
Tire pressure warning reset switch ................................................... 442
Trunk closer switch.............................102
Trunk opener switch ........................... 101
Trunk opener main switch ..............102
Vehicle-to-vehicle distance switch ................................................... 207
VSC OFF switch ...............................258
Window lock switch ............................131
Windshield wipers and washer switch ........................... 173
Tachometer ................................................ 76
Tail lights Light switch.............................................165
Replacing light bulbs ....................... 470
Talk switch
*.............................................337
Telephone switches
*...........................337
Theft deterrent system Alarm ...........................................................67
Engine immobilizer system ............. 65
T
*: For vehicles with navigation system, refer to the
“NAVIGATION SYSTEM OWNER’S MANUAL”.