headlights Lexus GS350 2016 Owner's Guide

377
GS350_200t_GS F_OM_OM30E86U_(U)
6Maintenance and care
6-1. Maintenance and careCleaning and protecting the vehicle exterior................. 378
Cleaning and protecting the vehicle interior .................. 382
6-2. Maintenance Maintenance requ irements ...385
General maintena nce .............. 387
Emission inspection and maintenance (I/M)
programs ....................................390
6-3. Do-it-yourself maintenance Do-it-yourself service precautions ................................. 391
Hood ............................................... 393
Positioning a floor jack ............. 394
Engine compartment ............... 396
Tires ................................................... 413
Tire inflation pressure ............... 422
Wheels ........................................... 425
Air conditioning filter ................427
Electronic key battery .............. 429
Checking and replacing fuses ............................................... 431
Headlight aim (vehicles with single-beam headlights)....... 435
Light bulbs..................................... 437

388
GS350_200t_GS F_OM_OM30E86U_(U)6-2. Maintenance
Vehicle interior
ItemsCheck points
Accelerator pedal• The accelerator pedal should move smoothly
(without uneven pedal effort or catching).
Automatic transmission “Park”
mechanism• When parked on a slope and the shift lever is in P,is the vehicle securely stopped?
Brake pedal
• Does the brake pedal move smoothly?
• Does the brake pedal have appropriate clearance
from the floor? ( P. 5 4 9 )
• Does the brake pedal have the correct amount of
free play? ( P. 5 4 9 )
Brakes
• The vehicle should not pull to one side when the
brakes are applied.
• The brakes should work effectively.
• The brake pedal should not feel spongy.
• The brake pedal should not get too close to the floor when the brakes are applied.
Head restraints• Do the head restraints move smoothly and lock
securely?
Indicators/buzzers• Do the indicators and buzzers function properly?
Lights• Do all the lights come on?
• Are the headlights aimed correctly? ( P. 4 3 5 )
Parking brake• Moves smoothly?
• When parked on a slope and the parking brake is
on, is the vehicle securely stopped?
Seat belts•Do the seat belt s operate smoothly?
• The seat belts should not be damaged.
Seats• Do the seat controls operate properly?
Steering wheel
• Does the steering wheel rotate smoothly?
• Does the steering wheel have the correct amount of free play?
• There should not be an y strange sounds coming
from the steering wheel.

437
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Light bulbs
Check the wattage of the light bulb to be replaced. (
P. 5 5 4 )
 P. 3 9 9
Front turn signal light (vehicles with single-beam headlights)
You may replace the following bulbs by yourself. The difficulty level of replace-
ment varies depending on the bulb. If necessary bulb replacement seems diffi-
cult to perform, contact your Lexus dealer.
For more information about replacing other light bulbs, contact your Lexus
dealer.
Preparing for light bulb replacement
Removing the engine compartment covers
Bulb locations
1

438
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
■Front turn signal light (vehicles with single-beam headlights)
For the left side only: Remove the
bolt and move the washer fluid
filler opening.
Turn the bulb base counterclock-
wise.
Remove the light bulb.
Replacing light bulbs
1
2
3

GS350_200t_GS F_OM_OM30E86U_(U)
4396-3. Do-it-yourself maintenance
6
Maintenance and care
When installing, reverse the steps listed.
After installing the bulb base, secure the cord with the clips and if replacing the left
side bulb, make sure to install the bolt for the washer fluid filler opening in its origi-
nal position.
■Replacing the following bulbs
If any of the lights listed below has burnt out, have it replaced by your Lexus
dealer.
●Headlights
●Parking lights/daytime running lights
●Front side marker lights
●Front turn signal lights (vehic les with triple-beam headlights)
●Side turn signal lights
●Stop/tail lights
●Stop lights
●Rear side marker lights
●Rear turn signal lights
●Back-up lights
●High mounted stoplight
●License plate lights
●Outer foot lights
4
Right sideLeft side

440
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
■LED Lights
The lights other than the front turn signal light (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 your Lexus dealer 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 your Lexus dealer for mo re information in the following situations:
●Large drops of water have built up on the inside of the lens.
●Wa t e r h a s b u i l t u p i nside the headlight.
■When replacing light bulbs
P. 4 3 4
WA R N I N G
■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 ho ld 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 installin g to prevent heat damage.

4837-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
Wa r n i n g m e s s a g eDetails/Actions
(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, since the VSC (Vehicle Stability Control)
system was turned off, the pre-collision braking and pre-
collision brake assist are stopped (The pre-collision
warning function will be operational)
 Turn the VSC on. ( P. 3 1 1 )

515
GS350_200t_GS F_OM_OM30E86U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
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. 1 9 7 )
●There may be a malfunction in the engine immobilizer system. ( P. 7 2 )
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 5 2 3 )
●The battery terminal connections may be loose or corroded.
The engine starting system may be malfun ctioning 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. 5 1 6 )
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. 5 2 3 )
●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.
If the engine will not start even though correct starting procedures are being
followed ( P. 197), consider each of the following points:
The engine will not start even thoug h the starter motor operates nor-
mally.
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 headlights
do not turn on, or the horn does not sound.

5267-2. Steps to take in an emergency
GS350_200t_GS F_OM_OM30E86U_(U)
■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 components 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 discharge 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 access system
with push-button start when the battery is discharged. Use the wireless remote control
or the mechanical 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 battery discharged, be
especially careful when reconnecting the battery.

554
GS350_200t_GS F_OM_OM30E86U_(U)8-1. Specifications
GS F (type B)
Ti r e s i z e
Front tires: 255/ 35ZR19 (92Y)
Rear tires: 275/35ZR19 (96Y)
Spare tire: 225/40ZR19 (93Y) XL
Tire inflation pressure
(Recommended cold
tire inflation pressure)
Driving under normal conditions
Front: 36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear: 36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Spare: 42 psi (290 kPa, 2.9 kgf/cm2 or bar)
Driving at high speeds (above 137 mph [220 km/h]) (in
countries where such speeds are permitted by law)
Add 8 psi (50 kPa, 0.5 kgf/cm
2 or bar) to the front tires
and rear tires. Never exceed the maximum cold tire infla-
tion pressure indicated on the tire sidewall.
Wheel sizeFront wheels: 19  9J
Rear wheels: 19  10J
Spare wheel: 19  8 1 /2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WTy p e
ExteriorFront turn signal lights*7444NA28A
Outer foot lightsW5W5B
InteriorVanity lights8B
Trunk light3.8B
A: Wedge base bulbs (amber)
B: Wedge base bulbs (clear)
*: Vehicles with single-beam headlights