2020 Lexus GS350 ignition

575What to do if... (Troubleshooting)
GS350_GS F_OM_OM30J07U_(U)
●Did you press the engine switch while firmly depressing the brake pedal?
( P. 203)
●Is the shift lever in P? ( P. 205)
●Is the electronic key anywhere detectable inside the vehicle? ( P. 156)
●Is the steering wheel unlocked? ( P. 205)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. (P. 503)
●Is the battery discharged? ( P. 505)
●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. 214)
●It is locked automatically to prevent theft of the vehicle. ( P. 205)
●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. 181)
●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. 205)
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

576What to do if... (Troubleshooting)
GS350_GS F_OM_OM30J07U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passe nger wearing the seat belts? (P. 437)
●The parking brake indicator is on
Is the parking brake released? ( P. 217)
Depending on the situation, other types of warning buzzer may also sound.
( P. 435, 442)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( P. 79)
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. 442)
●When a warning light turns on or a warning message is displayed, refer to
P. 435, 442.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

582Alphabetical index
GS350_GS F_OM_OM30J07U_(U)
Eco drive mode ...................................... 281
Eco Driving Indicator...............................91
Eco driving meter .................................... 98
EDR (Event data recorder) ...................10
Electric Power Steering (EPS) ....... 298Function ................................................. 298
Warning light .......................................436
Warning message ............................. 442
Electronic key ......................................... 138 Battery-saving function .................... 158
If the electronic key does not operate properly............................ 502
Replacing the battery .......................... 411
Emergency, in case of If a warning buzzer sounds...........435
If a warning light turns on...............435
If a warning message is displayed ........................................ 442
If the electronic key does not operate properly ....... 502
If the engine will not start............... 498
If the vehicle is trapped in rising water ........................................426
If the parking brake cannot be released ....................... 500
If the vehicle battery is discharged ........................................ 505
If you have a flat tire ..............473, 484
If you think something is wrong...............................................433
If your vehicle becomes stuck ...... 513
If your vehicle has to be stopped in an emergency .............................425
If your vehicle needs to be towed ....................................... 427
If your vehicle overheats ............... 509 Emergency flashers .............................424
Emergency tire puncture repair
kit ............................................................. 484
Engine Accessory mode ............................... 204
Compartment ...................................... 381
Engine switch ...................................... 203
Hood........................................................ 378
How to start the engine.................. 203
Identification number........................ 518
Ignition switch (engine switch.................................. 203
Overheating........................................ 509
Engine compartment cover............. 383
Engine coolant ...................................... 388 Capacity................................................. 522
Checking .............................................. 388
Preparing and checking before winter ....................................305
Engine coolant temperature gauge .............................................. 92, 100
Engine immobilizer system .................. 77
Engine oil ................................................. 385 Capacity...................................................519
Checking ...............................................385
Oil level warning message ........... 442
Oil pressure warning message........................... 442
Preparing and checking before winter ....................................305
E

584Alphabetical index
GS350_GS F_OM_OM30J07U_(U)
Fuel filler door ........................................ 234When the fuel filler door cannot be opened ......................... 237
Fuel pump shut off system................. 434
Fuses ............................................................413
Garage door opener .......................... 353
Gauges ................................................92, 98
Glove box ..................................................341
Glove box light ........................................341
Hands-free system (for cellular phone)
*
HD Radio® system*
Head restraints ......................................... 171
Headlights ............................................... 222 Adaptive Front-lighting System (AFS) ................................... 223
Automatic High Beam system .... 225
Headlight leveling warning message ........................... 442
Light switch ........................................... 222
Replacing light bulbs ..........................421
Headlights aim ............................... 417, 571
Head-up display......................................126
Heated steering wheel ....................... 332 Heaters
Air conditioning system .................. 318
Heated steering wheel ................... 332
Seat heaters .......................................... 333
Outside rear view mirrors ............ 324
Hill-start assist control ........................ 297
Hood ......................................................... 378 Open ....................................................... 378
Warning message............................. 442
Hooks Cargo hooks ....................................... 344
Coat hooks ........................................... 352
Retaining hooks (floor mat)..............32
Horn............................................................. 174
I/M test ......................................................375
Identification............................................. 517 Engine ...................................................... 518
Vehicle ...................................................... 517
Ignition switch (engine switch) ....... 203 Auto power off function .................205
Changing the engine switch modes .................................................. 204
If your vehicle has to be stopped in an emergency.......... 425
Starting the engine ............................ 204
Illuminated entry system ................... 339
Immobilizer system ................................. 77
Indicators .....................................................87
G
H
I

592Alphabetical index
GS350_GS F_OM_OM30J07U_(U)
SwitchesASC (Active Sound Control) switch...................................................... 221
Audio remote control switches
*
Automatic High Beam switch ..... 225
Brake Hold............................................. 219
Cruise control switch........................................266, 278
Door lock switches ............................ 145
Driving mode select switch ........... 281
Driving position memory switches ................................................ 166
Emergency flashers switch ........... 424
Engine switch ...................................... 203
Garage door opener switches .............................................. 353
Heated steering wheel switch.................................................... 332
HUD (Head-up display) switches ................................................ 126
Ignition switch ..................................... 203
Intuitive parking assist
*
Light switch ........................................... 222
LKA (Lane-Keeping Assist) switch................................................... 260
Meter control switches ........... 107, 115
Moon roof switches........................... 184
Outside rear view mirror switches ................................................. 177 Paddle shift switches..........................210
Parking brake switches .................... 217
Power door lock switch ...................145
Power window switches ................... 181
Rear sunshade switch ..................... 349
Rear window and outside
rear view mirror defoggers
switch ................................................... 324
Seat heater switches ........................ 333
Seat ventilator switches .................. 333
Snow mode switch ........................... 209
“SOS” button ........................................... 72
Talk switch
*
Telephone switches*
Tilt and telescopic steering control switch .................. 174
Tire pressure warning reset switch ................................................... 396
Trunk closer switch............................ 150
Trunk opener switch ..........................149
Trunk opener main switch ............... 151
TVD (Torque Vectoring Differential) switch ......................... 295
Vehicle-to-vehicle distance switch ....................................................272
VSC OFF switch ............................... 299
Window lock switch ........................... 181
Windshield wipers and washer switch ......................... 229