key battery Lexus GS350 2016 User Guide

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GS350_200t_GS F_OM_OM30E86U_(U)3-5. Opening, closing the windows and moon roof
■When the window cannot be opened or closed
When the jam protection function or catch
protection function operates unusually and
the door window cannot be open ed or closed, perform the following operations with the
power window switch of that door.
●Stop the vehicle. With the engine switch in IGNITION ON mode, within 4 seconds of
the jam protection function or catch protecti on function activating, continuously oper-
ate the power window switch in the one-to uch closing direction or one-touch opening
direction so that the door wind ow can be opened and closed.
●If the door window cannot be opened and closed even when performing the above
operations, perform the following proc edure for function initialization.
Turn the engine switch to IGNITION ON mode.
Pull and hold the power window switch in the one-touch closing direction and com-
pletely close the door window.
Release the power window switch for a mo ment, resume pulling the switch in the
one-touch closing direction, and hold it there for approximately 6 seconds or more.
Press and hold the power window switch in the one-touch opening direction. After
the door window is complete ly opened, continue holding the switch for an additional
1 second or more.
Release the power window switch for a moment, resume pressing the switch in the
one-touch opening direction, and hold it there for approximately 4 seconds or
more.
Pull and hold the power window switch in the one-touch closing direction again.
After the door window is completely clos ed, continue holding the switch for a fur-
ther 1 second or more.
If you release the switch while the window is moving, start again from the beginning.
If the window reverse and cannot be fully closed or opened, have the vehicle inspected
by your Lexus dealer.
■Door lock linked window operation
●The power windows can be opened an d closed using the mechanical key.*( P. 5 2 0 )
●The power windows can be opened us ing the wireless remote control.* ( P. 1 3 7 )
*: These settings must be customized at your Lexus dealer.
■When the battery is disconnected
The window lock switch is disabled. If nece ssary, press the window lock switch after
reconnecting the battery.
■Power windows open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the instru-
ment cluster when the engine switch is turned off and the driver’s door is opened with the
power windows open.
■Customization
Settings (e.g. linked door lock operation) can be changed.
(Customizable features: P. 5 6 8 )
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GS350_200t_GS F_OM_OM30E86U_(U)
1994-2. Driving procedures
4
Driving
If the engine is stopped with the shift lever in a position other than P, the engine
switch will not be turned off but inst ead be turned to ACCESSORY mode. Per-
form the following procedure to turn the switch off:
Check that the parking brake is set.
Shift the shift lever to P.
Check that “Turn Off Vehicle” is displayed on the multi-information display
and then press the engine switch once.
Check that “Turn Off Vehicle” on the multi-information display is off.
■Auto power off function
If the vehicle is left in ACCESSORY mode for more than 20 minutes or IGNITION ON
mode (the engine is not running) for more than an hour with the shift lever in P, the engine
switch will automatically turn off. However, this function cannot entirely prevent battery
discharge. Do not leave the vehicle with the engine switch in ACCESSORY or IGNI-
TION ON mode for long periods of ti me when the engine is not running.
■Electronic key battery depletion
P. 1 3 4
■Conditions affe cting operation
 P. 1 5 2
■Notes for the entry function
P. 1 5 3
■If the engine does not start
●The engine immobilizer system may not have been deactivated. ( P. 7 2 )
Contact your Lexus dealer.
●Check that the shift lever is securely set in P. The engine may not start if the shift lever is
displaced out of P. “Shift to P position to Start” will be displayed on the multi-information
display.
■Steering lock
After turning the engine switch off and opening and closing the doors, the steering wheel
will be locked due to the stee ring lock function. Operating the engine switch again auto-
matically cancels the steering lock.
■When the steering lock cannot be released
When stopping the engine with the shift lever in a position other than P
“Steering Lock active” will be displayed on the
multi-information display.
Check that the shift lever is set in P. Press the
engine switch while turning the steering wheel
left and right.
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GS350_200t_GS F_OM_OM30E86U_(U)4-2. Driving procedures
■Steering lock motor overheating prevention
To prevent the steering lock motor from overheating, the motor may be suspended if the
engine is turned on and off repeatedly in a sh
ort period of time. In this case, refrain from
operating the engine. After about 10 seconds, the steering lock motor will resume func-
tioning.
■When “Check Access System with Elec. Ke y” will be displayed on the multi-informa-
tion display
The system may be malfunctioning. Have the vehicle inspected by your Lexus dealer
immediately.
■If the electronic key battery is depleted
 P. 4 2 9
■Operation of the engine switch
●When operating the engine switch, one short, firm press is enough. If the switch is
pressed improperly, the engine may not start or the engine switch mode may not
change. It is not necessary to press and hold the switch.
●If attempting to restart the engine immediat ely after turning the engine switch off, the
engine may not start in some cases. After tu rning the engine switch off, please wait a
few seconds before re starting the engine.
■If the smart access system with push-butto n start has been deactivated in a customized
setting
 P. 5 2 0
WA R N I N G
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not depress the accelerator
pedal while starting the engine under any circumstances.
Doing so may cause an accident resu lting in death or serious injury.
■Caution while driving
If engine failure occurs while the vehicle is moving, do not lock or open the doors until
the vehicle reaches a safe and complete stop. Activation of the steering lock in this cir-
cumstance may lead to an accident, re sulting in death or serious injury.
■Stopping the engine in an emergency
If you want to stop the engine in an emergency while driving the vehicle, press and hold
the engine switch for more than 2 seconds, or press it briefly 3 times or more in succes-
sion. ( P. 4 4 3 )
However, do not touch the engine switch while driving except in an emergency. Turning
the engine off while driving will not cause lo ss of steering or braking control, but the
power assist to these systems will be lost. Th is will make it more difficult to steer and
brake, so you should pull over and stop the vehicle as soon as it is safe to do so.

GS350_200t_GS F_OM_OM30E86U_(U)
2174-3. Operating the lights and wipers
4
Driving
■Automatic light off system
●When the headlights are on: The headlights and tail lights turn off 30 seconds after the
engine switch is turned off and a door is opened and all of the doors and trunk are
closed. (The lights turn off immediately if on the key is pressed twice after all the
doors are closed.)
●When only the tail lights are on : The tail lights turn off automatically if the engine switch
is turned off and the driver’s door is opened.
To turn the lights on again, turn the engine switch to IGNITION ON mode, or turn the
light switch off once and then back to or .
If any of the doors or trunk lid is kept open , the lights automatically turn off after 20 min-
utes.
■Light reminder buzzer
A buzzer sounds when the engine switch is turned off or turned to ACCESSORY mode
and the driver’s door is opened while the lights are turned on.
■Automatic headlight leveling system
The level of the headlights is automatically ad justed according to the number of passen-
gers and the loading condition of the vehicle to ensure that the headlights do not inter-
fere with other road users.
■If the “AFS OFF” indicator flashes
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization
Settings (e.g. light sensor se nsitivity) can be changed.
(Customizable features: P. 5 6 8 )
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than ne cessary when the engine is not running.

GS350_200t_GS F_OM_OM30E86U_(U)
3495-3. Using the interior lights
5
Interior features
●Illuminated entry system: The lights automatically turn on/off according to engine
switch mode, the presence of the electronic key, whether the doors are locked/
unlocked, and whether the doors are opened/closed.
●If the interior lights remain on when the engine switch is turned off, the lights will go off
automatically after 20 minutes.
●Setting (e.g. the time elapsed before lights turn off) can be changed.
(Customizable features: P. 5 6 8 )
NOTICE
To prevent battery discharge, do not leave the lights on longer than necessary when the
engine is off.

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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

GS350_200t_GS F_OM_OM30E86U_(U)
3796-1. Maintenance and care
6
Maintenance and care
■Automatic car washes
●Fold the mirrors before washing the vehicle. Start washing from the front of the vehicle.
Make sure to extend th e mirrors before driving.
●Brushes used in automatic car washes may scratch the vehicle surface and harm your
vehicle’s paint.
●Rear spoiler (if equipped) may not be wash able in some automatic car washes. There
may also be an increased risk of damage to vehicle.
■High-pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the windows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed prop-
erly.
■Notes for a smart access system with push-button start
If the door handle becomes wet while the electronic key is within the effective range, the
door may lock and unlock repeatedly. In that case, follow the following correction proce-
dures to wash the vehicle:
●Place the key in a position 6 ft. (2 m) or more separate from the vehicle while the vehi-
cle is being washed. (Take care to ensure that the key is not stolen.)
●Set the electronic key to battery-saving mode to disable the smart access system with
push-button start. ( P. 1 5 2 )
■Aluminum wheels
●Remove any dirt immediately by using a neutral detergent. Do not use hard brushes or
abrasive cleaners. Do not use strong or harsh chemical cleaners.
Use the same mild detergent and wax as used on the paint.
●Do not use detergent on the wheels when they are hot, for example after driving for
long distance in the hot weather.
●Wash detergent from the wheels immediately after use.
■Brake caliper coating (GS350/GS200t with orange brake calipers for F SPORT
models, and GS F)
●When using detergent, use neutral detergent.
Do not use hard brushes or abrasive cl eaners, as they will damage the coating.
●Do not use detergent on the brake calipers when they are hot.
●Wash detergent off immediately after use.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating (if equipped)
●The following precautions can extend the effectiveness of the water-repellent coating.
• Remove any dirt, etc. from the front side windows regularly.
• Do not allow dirt and dust to accumulate on the windows for a long period.
Clean the windows with a soft, da mp cloth as soon as possible.
• Do not use wax or glass cleaners that co ntain abrasives when cleaning the windows.
• Do not use any metallic objects to remove condensation build up.
●When the water-repellent performance has become insufficient, the coating can be
repaired. Contact your Lexus dealer.

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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
Check the battery as follows.
■Battery exterior
Make sure that the battery terminals are not corroded and that there are no
loose connections, cracks, or loose clamps.
Te r m i n a l s
Hold-down clamp
■Before recharging
When recharging, the battery produces hydrogen gas which is flammable and explosive.
Therefore, observe the following before recharging:
●If recharging with the battery installed on the vehicle, be sure to disconnect the ground
cable.
●Make sure the power switch on the charger is off when connecting and disconnecting
the charger cables to the battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the proc edure below to initialize the system.
Shift the shift lever to P.
Open and close any of the doors.
Restart the engine.
●Unlocking the doors using the smart access system with push-button start may not be
possible immediately after reconnecting the battery. If this happens, use the wireless
remote control or the mechanical key to lock/unlock the doors.
●Start the engine with the engine switch in ACCESSORY mode. The engine may not
start with the engine switch turned off. However, the engine will operate normally from
the second attempt.
●The engine switch mode is recorded by the vehicle. If the battery is reconnected, the
vehicle will return the engine switch mode to the status it was in before the battery was
disconnected. Make sure to turn off the en gine before disconnect the battery. Take
extra care when connecting the battery if the engine switch mode prior to discharge is
unknown.
If the engine will not start even after multiple attempts at both methods, contact your
Lexus dealer.
Battery
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429
GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
6
Maintenance and care
Electronic key battery
●Flathead screwdriver
●Small flathead screwdriver
●Lithium battery CR2032
Take out the mechanical key.
Remove the cover.
To prevent damage to the key, cover the
tip of the screwdriver with a rag.
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
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GS350_200t_GS F_OM_OM30E86U_(U)6-3. Do-it-yourself maintenance
■Use a CR2032 lithium battery
●Batteries can be purchased at your Lexus
dealer, local electrical appliance shops or
camera stores.
●Replace only with the same or equivalent type recommended by the manufacturer.
●Dispose of used batteries according to local laws.
■When the card key battery needs to be replaced (if equipped)
The battery for the card key is available only at Lexus dealers. Your Lexus dealer can
replace the battery for you.
■If the electronic key battery is depleted
The following symptoms may occur:
●The smart access system with push-button start and wireless remote control will not
function properly.
●The operational range will be reduced.
WA R N I N G
■Removed battery and other parts
These parts are small and if swallowed by a child, they can cause choking. Keep away
from children. Failure to do so could result in death or serious injury.
NOTICE
■For normal operation afte r replacing the battery
Observe the following precautions to prevent accidents:
●Always work with dry hands.
Moisture may cause the battery to rust.
●Do not touch or move any other component inside the remote control.
●Do not bend either of the battery terminals.