2017 Lexus GS350 headlight

5046-3. Do-it-yourself maintenance
GS350_200t_GS F_OM_OM30F83E_(EE)
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by any autho-
rized Lexus retailer or Lexus authorized repairer, or any reliable repairer. ●Headlights
● Front position lights/daytime running lights
● Front fog lights (GS350/GS200t)
● Front turn signal lights (vehicles with triple-beam headlights)
● Side turn signal lights
● Stop/tail lights
● Stop lights
● Rear fog light
● Rear turn signal lights
● Back-up lights
● High mounted stoplight
● License plate lights
■LED Lights
The lights other than the front turn signal lig ht (vehicles with single-beam headlights) and
outer foot lights each consist of a number of LEDs. If any of the LEDs burn out, take your
vehicle to any authorized Lexus retailer or Lexus authorized repairer, or any reliable
repairer to have the light replaced.
■Condensation build-up on the inside of the lens
Temporary condensation build-up on the inside of the headlight lens does not indicate a
malfunction. Contact any authorized Lexus reta iler or Lexus authorized repairer, or any
reliable repairer for more information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Water has built up inside the headlight.
■When replacing light bulbs P. 497

505
6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_200t_GS F_OM_OM30F83E_(EE)
WARNING
■Replacing light bulbs
●Turn off the lights. Do not attempt to replace the bulb immediately after turning off the
lights.
The bulbs become very hot and may cause burns.
●Do not touch the glass portion of the light bulb with bare hands. When it is unavoid-
able to hold the glass portion, use and hold with a clean dry cloth to avoid getting
moisture and oils on the bulb.
Also, if the bulb is scratched or dropped, it may blow out or crack.
●Fully install light bulbs and any parts used to secure them. Failure to do so may result
in heat damage, fire, or water entering the headlight unit. This may damage the head-
lights or cause condensation to build up on the lens.
■To prevent damage or fire
●Make sure bulbs are fully seated and locked.
●Check the wattage of the bulb before installing to prevent heat damage.
NOTICE
■When replacing the outer foot lights
If the front window is stopping you from conducting the replace operation properly,
open the window on the side you are working on to allow you enough space to work.
Continuing the operation without giving yourself enough space to work could lead you
to scratch the vehicle.

549
7-2. Steps to take in an emergency
7
When trouble arises
GS350_200t_GS F_OM_OM30F83E_(EE)
(If equipped)
Indicates that the fuel injectors require maintenance  Have any authorized Lexus retailer or Lexus autho-
rized repairer, or any reliable repairer replenish the
injector cleaner and reset the message.
(If equipped)
Indicates that the Automatic High Beam switch was
pressed while the low beams were onTurn the high beam headlights on before pressing
the Automatic High Beam switch.
(If equipped)
Indicates that the Adaptive High-beam System switch
was pressed while th e low beams were on
 Turn the high beam headlights on before pressing
the Adaptive High-beam System switch.
(If equipped)
Indicates that, since the VSC (Vehicle Stability Control)
system was turned off, the pre-crash braking and pre-
crash brake assist are stopped (The pre-crash warning
function will be operational) Turn the VSC on. ( P. 378)
Warning messageDetails/Actions

5907-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
If the engine will not start
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 following correct starting procedures. ( P. 240)
● There may be a malfunction in the engine immobilizer system. ( P. 86)
One of the following may be the cause of the problem: ● The battery may be discharged. ( P. 597)
● The battery terminal connections may be loose or corroded.
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. 591)
One of the following may be the cause of the problem: ● One or both of the battery terminals may be disconnected.
● The battery may be discharged. ( P. 597)
● There may be a malfunction in the steering lock system.
Contact any authorized Lexus retailer or Le xus authorized repairer, or any reliable
repairer if the problem cannot be repaired , or if repair procedures are unknown.
If the engine will not start even though correct starting procedures are being
followed ( P. 240), consider each of the following points:
The engine will not start even thou gh the starter motor operates nor-
mally.
The starter motor turns over slowly , the interior lights and headlights
are dim, or the horn does not so und or sounds at a low volume.
The starter motor does not turn over
The starter motor does not turn over , the interior lights and headlights
do not turn on, or the horn does not sound.

6007-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30F83E_(EE)
■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 componen ts when the vehicle is running at a low
speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will disc harge gradually even when the vehicle 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 discharge, and the engine may be
unable to start. (The battery recharges automatically during driving.)
■When recharging or replacing the battery
●In some cases, it may not be possible to unlock the doors using the smart entry & start
system when the battery is discharged. Use the wireless remote control or the mechan-
ical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but will
start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was discharged.
Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the batter y discharged, be
especially careful when reconnecting the battery.

659
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Anti-lock Brake System (ABS) ....... 375
Function .................................................. 375
Warning light ........................................ 519
Warning message............................. 524
Approach warning ...................338, 350
Armrest.....................................................430
Armrest door.......................................... 433
ASC (Active Sound Control)........... 261
Ashtrays .................................................... 429
Assist grips .............................................. 434
Audio input *
Audio system *
Automatic headlight leveling system ................................................... 264
Automatic High Beam ....................... 270
Automatic light control system ...... 262
Automatic transmission ..................... 246 If the shift lever cannot be
shifted from P ................................... 253
M mode .................................................. 249
Paddle shift switches ........................ 248
AUX port *
Auxiliary boxes ...................................... 423
AVS (Adaptive Variable Suspension system) .......................... 376 Back-up light
Replacing light bulb ......................... 504
Battery....................................................... 466
If the vehicle has discharged battery.................................................. 597
Preparing and checking before winter.................................... 383
Warning light.........................................518
Blind Spot Monitor (BSM) .............. 363
Blind Spot Monitor function ........ 368
Rear Crossing Traffic Alert function ............................................... 370
Bluetooth ®
*
Brake Fluid .......................................................... 628
Parking brake ...................................... 256
Warning light............................ 518, 520
Warning message ............................ 524
Brake assist ............................................ 375
Brake Hold .............................................. 259
Break-in tips ........................................... 224
Brightness control Instrument panel li ght control ...........111
BSM (Blind Spot Monitor) ............... 363 Blind Spot Monitor function ........ 368
Rear Crossing Traffic Alert function.................................... 370B
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.

664Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Front personal lights ..............................417
Front position lights.............................. 262
Light switch ........................................... 262
Replacing light bulbs....................... 504
Welcome light illumination control................................................... 160
Front seats ................................................ 196 Adjustment ............................................. 196
Cleaning................................................. 444
Correct driving posture .................... 44
Driving position memory ................ 199
Head restraints.................................... 204
Power easy access system ............ 199
Seat heaters ............................................ 412
Seat position memory ...................... 199
Seat ventilators ...................................... 412
Front turn signal lights......................... 255 Replacing light bulbs........... 499, 504
Turn signal lever .................................255
Wattage....................................................631
Fuel ............................................................. 282 Capacity ................................................... 617
Fuel gauge..................................... 108, 113
Fuel pump shut off system...............517
Information ............................................ 632
Refueling ................................................ 282
Type ............................................................ 617
Warning light .......................................520
Warning messages........................... 524
Fuel consumption
Average fuel consumption............................ 122, 130
Average fuel consumption after refueling .......................... 122, 130
Current fuel consumption.... 122, 130 Fuel filler door ........................................ 282
Refueling ................................................ 282
When the fuel filler door cannot be opened......................... 284
Fuel pump shut off system .................. 517
Fuses .......................................................... 493
Gauges ..............................................108, 113
Glove box................................................ 420
Glove box light ...................................... 420
Hands-free system (for cellular phone) *
Head restraints ...................................... 204
Headlight cleaner...................... 277, 278
Headlights ............................................... 262 Adaptive Front-lighting
System (AFS)................................... 263
AHS (Adaptive High-beam
System) ............................................... 265
Automatic High Beam
system.................................................. 270
Follow me home system................ 263
Headlight leveling warning message ............................................. 524
Light switch............................................262
Replacing light bulbs ....................... 504
Head-up display....................................... 141
Heated steering wheel.......................... 411
G
H

667
Alphabetical index
GS350_200t_GS F_OM_OM30F83E_(EE)
Lights
AHS (Adaptive High-beam
System)................................................265
Automatic High Beam
system .................................................. 270
Fog light switch ................................... 275
Follow me home system ................ 263
Headlight switch................................. 262
Illuminated entry system.................. 418
Interior light ............................................. 417
Interior lights list ....................................416
Personal lights ....................................... 417
Replacing light bulbs........... 499, 504
Trunk light ............................................... 168
Turn signal lever .................................255
Vanity lights .......................................... 428
Wattage....................................................631
Welcome light illumination
control................................................... 160
LDA (Lane Departure Alert with
steering control) ..................................317 Operation ..............................................320
Warning messages........................... 524
LKA (Lane-Keeping Assist) .............307
Operation ................................................. 311
Warning messages........................... 524
Lock steering column ......................... 242
Low profile tire ....................................... 475
Luggage hook ........................................ 424
Luggage security system .................... 168 Main display............................................ 394
Maintenance
Do-it-yourself maintenance ......... 449
Maintenance data ............................... 612
Maintenance requirements ...........447
Malfunction indicator lamp ............... 518
Master warning light ........................... 520
Meter ..................................................108, 113 Head-up display .................................... 141
Indicators .................................................103
Instrument panel light
control ..............................................111, 118
Meters ..............................................108, 113
Multi-information display.........121, 129
Warning lights ...................................... 102
Mirrors Inside rear view mirror ................... 209
Outside rear view mirror defoggers .......................................... 402
Outside rear view mirrors ................ 211
Vanity mirrors ..................................... 428
Moon roof ................................................. 217 Door lock linked moon roof
operation.............................................. 218
Jam protection function ................... 218
Operation ............................................... 217
Warning message ............................ 524
MP3 disc *M
*: Refer to the “NAVIGATION AND MULTIMEDIA
SYSTEM OWNER’S MANUAL”.