Page 601 of 628
599
GS350_200t_GS F_OM_OM30E86U_(U)
Index
What to do if... (Troubleshooting)............................... 600
Alphabetical index.................................604
For information regarding the equipment listed below, refer to the
“NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MAN-
UAL”.
• Audio system
•Navigation system
• Intuitive parking assist
• Lexus parking assist monitor
Page 602 of 628

600What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
What to do if... (Troubleshooting)
●If you lose your mechanical keys, new genuine mechanical keys can be made
by your Lexus dealer. ( →P. 1 3 4 )
●If you lose your electronic keys, the risk of vehicle theft increases significantly.
Contact your Lexus dealer immediately. ( →P. 1 3 5 )
●Is the electronic key battery weak or depleted? ( →P. 4 2 9 )
●Is the engine switch in IGNITION ON mode?
When locking the doors, turn the engine switch off. ( →P. 1 9 8 )
●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. 1 5 2 )
●Is the child-protector lock set?
The rear door cannot be opened from inside the vehicle when the lock is set.
Open the rear door from outside and then unlock the child-protector lock.
(→ P. 1 4 0 )
●The function to prevent the electronic key from being left inside the trunk will
operate and you can open the trunk as usual. Take the key out from the trunk.
(→ P. 1 4 5 )
If you have a problem, check the following 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
Page 603 of 628

601What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
●Did you press the engine switch while firmly depressing the brake pedal?
(→ P. 1 9 7 )
●Is the shift lever in P? (→ P. 199)
●Is the electronic key anywhere detectable inside the vehicle? ( →P. 1 5 0 )
●Is the steering wheel unlocked? ( →P. 199)
●Is the electronic key battery weak or depleted?
In this case, the engine can be started in a temporary way. ( →P. 5 2 1 )
●Is the battery discharged? ( →P. 5 2 3 )
●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. 5 1 7 )
●It is locked automatically to prevent theft of the vehicle. ( →P. 1 9 9 )
●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. 1 7 5 )
●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. 199)
If you think something is wrong
The engine does not start
The shift lever cannot be shifted fr om 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
Page 604 of 628
602What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
●The seat belt reminder light is flashing
Are the driver and the front passenger wearing the seat belts? ( →P. 4 5 4 )
●The parking brake indicator is on
Is the parking brake released? ( →P. 2 1 0 )
Depending on the situation, other type s of warning buzzer may also sound.
( → P. 452, 459)
●Did anyone inside the vehicle open a door during setting the alarm?
The sensor detects it and the alarm sounds. ( →P. 74 )
To stop the alarm, turn the engine switch to IGNITION ON mode or start the
engine.
●Is the electronic key left inside th e vehicle or the moon roof opened?
Check the message on the multi-information display. ( →P. 4 5 9 )
●When a warning light turns on or a warning message is displayed, refer to
P. 452, 459. A warning buzzer sounds during driving
An alarm is activate
d and the horn sounds
A warning buzzer sounds wh en leaving the vehicle
A warning light turns on or a warning message is displayed
Page 605 of 628
603What to do if... (Troubleshooting)
GS350_200t_GS F_OM_OM30E86U_(U)
●Vehicles with spare tire
Stop the vehicle in a safe place and replace the flat tire with the spare tire.
(→ P. 4 9 1 )
●Vehicles without spare tire
Stop the vehicle in a safe place and repair the flat tire temporarily with the
emergency tire puncture repair kit. ( →P. 5 0 2 )
●Try the procedure for when the vehicle becomes stuck in mud, dirt, or snow.
(→ P. 5 3 4 )
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
Page 606 of 628

604Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Alphabetical index
A/C ............................................................ 328Air conditioning filter ........................ 427
Changing the rear seat settings ................................................ 335
Front automatic air conditioning
system ................................................. 328
Micro dust and pollen filter ...........334
Rear air conditioning system........339
S-FLOW mode .................................. 329
ABS (Anti-lock Brake System).......308 Function ................................................. 308
Warning light .......................................452
Warning message ............................ 459
Active Sound Control (ASC) ...........214
Adaptive Front-lighting System (AFS) ........................................................216
Adaptive Variable Suspension
system (AVS) ......................................309
AFS (Adaptive Front-lighting
System) ....................................................216
Air conditioning filter ...........................427
Air conditioning system ..................... 328 Air conditioning filter ........................ 427
Changing the rear seat settings ................................................ 335
Front automatic air conditioning system ................................................. 328
Micro dust and pollen filter ...........334
Rear air conditioning system........339
S-FLOW mode .................................. 329 Airbags .......................................................... 41
Airbag operating conditions .......... 48
Airbag precautions for your child ....................................... 44
Airbag warning light ........................ 452
Correct driving posture .................... 34
Curtain shield airbag operating conditions ....................... 48
Curtain shield airbag precautions .......................................... 46
Front passenger occupant classification system......................... 52
General airbag precautions ........... 44
Locations of airbags.............................. 41
Modification and disposal of airbags................................................47
Side airbag operating conditions ............................................. 48
Side airbag precautions .................... 44
Side and curtain shield airbags operating conditions ....................... 48
Side and curtain shield airbags
precautions .......................................... 44
SRS airbags ............................................... 41
Alarm ............................................................ 74 Alarm ...........................................................74
Warning buzzer .....................452, 459
Anchor brackets.......................................63
Antennas (smart access system with push-button start) .....................150
Anti-lock Brake System (ABS) ...... 308 Function ................................................. 308
Warning light ....................................... 452
Warning message............................. 459
A
Page 607 of 628

605Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Approach warning....................273, 285
Armrest .................................................... 360
Armrest door ......................................... 363
ASC (Active Sound Control) ...........214
Ashtrays.................................................... 359
Assist grips .............................................. 364
Audio input
*
Audio system*
Automatic headlight leveling system ...................................................... 217
Automatic light control system.........215
Automatic transmission ..................... 202 If the shift lever cannot be shifted from P .................................... 517
M mode ................................................. 205
Paddle shift switches ........................204
AUX port
*
Auxiliary boxes ...................................... 353
AVS (Adaptive Variable Suspension system)..........................309
Back-up lights Replacing light bulbs ........................439
Battery........................................................ 410
Battery checking.................................... 410 If the vehicle battery is discharged .........................................523
Preparing and checking before winter ..................................................... 316
Warning light .......................................452 Blind Spot Monitor (BSM) ............... 298
Blind Spot Monitor function.......... 301
Rear Cross Traffic Alert function................................................303
Bluetooth
®*
Brake Fluid ..........................................................409
Parking brake ........................................210
Warning light ........................... 452, 454
Warning message............................. 459
Brake assist ............................................. 308
Brake Hold................................................ 212
Break-in tips .............................................183
Brightness control Instrument panel light control ........ 89
BSM (Blind Spot Monitor) ............... 298
Blind Spot Monitor function.......... 301
Rear Cross Traffic Alert function................................................303
Card key .................................................... 132
Care................................................378, 382 Aluminum wheels .............................. 379
Exterior ................................................... 378
Interior ..................................................... 382
Seat belts................................................383
Cargo capacity ....................................... 194
Cargo hooks .......................................... 354
CD player
*
Chains......................................................... 317
B
C
*: Refer to the “NAVIGATION AND MULTIMEDIA SYSTEM OWNER’S MANUAL”.
Page 608 of 628

606Alphabetical index
GS350_200t_GS F_OM_OM30E86U_(U)
Child restraint system............................ 59Booster seats, definition ....................59
Booster seats, installation.................. 67
Convertible seats, definition ............59
Convertible seats, installation .........65
Front passenger occupant
classification system ......................... 52
Infant seats, definition ..........................59
Infant seats, installation .......................65
Installing CRS
with LATCH anchors ..................... 64
Installing CRS with seat belts ..........65
Installing CRS with top tether strap .........................68
Child safety ................................................ 58 Airbag precautions .............................. 44
Battery precautions ................. 411, 527
Child restraint system .........................59
How your child should wear the seat belt ................................. 37, 38
Installing child restraints..................... 63
Moon roof precautions....................180
Power window lock switch ............ 175
Power window precautions ...........177
Rear door child-protectors ........... 140
Removed electronic key battery precautions.............. 430
Seat belt comfort guide ..................... 37
Seat belt extender precautions ......40
Seat belt precautions .......................... 62
Seat heater precautions.................. 342
Trunk precautions............................... 146 Child-protectors ....................................140
Cleaning .......................................378, 382
Aluminum wheels .............................. 379
Exterior ................................................... 378
Interior ..................................................... 382
Seat belts................................................383
Clock................................................. 87, 359
Coat hooks ............................................. 364
Condenser.............................................. 408
Console box............................................. 351
Console box light ................................... 351
Consumption screen ............................128
Cooling system ..................................... 406 Engine overheating .......................... 528
Consumption screen ............................ 127
Cruise control Cruise control .....................................290
Dynamic radar cruise control ..... 278
Dynamic radar cruise control with full-speed range ................... 266
Cup holders............................................ 352
Curtain shield airbags ............................42
Customizable features ...................... 568
Daytime running light system............ 216
Defogger Front windshield................................. 334
Outside rear view mirrors ............ 334
Rear window ........................................ 334
Differential Front differential .................................548
Rear differential................................... 549
D