2014 Lexus GS250 key battery

4376-1. Maintenance and care
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
■High-pressure car washes
●Do not allow the nozzles of the car wash to come within close proximity of the win-
dows.
●Before using the car wash, check that the fuel filler door on your vehicle is closed
properly.
■Notes for a smart entry & start system
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 correc-
tion procedures to wash the vehicle:
●Place the key in a position 2 m (6 ft.) or more separate from the vehicle while the
vehicle 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 entry & start sys-
tem. (→P. 1 3 3 )
■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.
■Bumpers
Do not scrub with abrasive cleaners.
■Front side windows water-repellent coating
●The following precautions can extend the effectiveness of the water-repellent coat-
ing.
• 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, damp cloth as soon as possible.
• Do not use wax or glass cleaners that contain abrasives when cleaning the win- dows.
• 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 any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional.
GS350_250_OM_OM30E16E_(EE).book Page 437 Tuesday, July 8, 201 4 7:11 PM

463 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
■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 discon-
necting the charger cables to the battery.
■After recharging/reconnecting the battery
The engine may not start. Follow the procedure 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 entry & start system 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 nor-
mally 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 bat-
tery was disconnected. Make sure to turn off the engine before disconnect the bat-
tery. 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 any
authorized Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 463 Tuesday, July 8, 201 4 7:11 PM

489
6
6-3. Do-it-yourself maintenance
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
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 battery cover.
To prevent damage to the key, cover
the tip of the screwdriver with a rag.
Replace the battery with a new one if it is depleted.
You will need the following items:
Replacing the battery
1
2
3
GS350_250_OM_OM30E16E_(EE).book Page 489 Tuesday, July 8, 201
4 7:11 PM

4906-3. Do-it-yourself maintenance
GS350_250_OM_OM30E16E_(EE)
Remove the depleted battery.
Insert a new battery with the “+” termi-
nal facing up.
■Use a CR2032 lithium battery
●Batteries can be purchased at any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional, local electrical appliance shops or cam-
era 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 entry & start system and wireless remote control will not function prop-
erly.
●The operational range will be reduced.
4
GS350_250_OM_OM30E16E_(EE).book Page 490 Tuesday, July 8, 2014 7:11 PM

533
7When trouble arises
GS350_250_OM_OM30E16E_(EE)
7-1. Essential informationEmergency flashers...................534
If your vehicle has to be stopped
in an emergency ......................535 7-2. Steps to take in an emergency
If your vehicle needs to be towed................................ 536
If you think something is wrong....................................... 542
Fuel pump shut off system ...... 543
If a warning light turns on or a warning buzzer sounds..... 544
If a warning message is displayed ................................ 552
If you have a flat tire (vehicles with a spare tire) .......................577
If you have a flat tire (vehicles without a spare tire) ............... 592
If the engine will not start .......... 612
If the shift lever cannot be shifted from P..............................614
If the parking brake cannot be released...................615
If the electronic key does not operate properly ...................... 618
If the vehicle battery is discharged ...............................621
If your vehicle overheats ......... 625
If the vehicle becomes stuck ......................... 628
GS350_250_OM_OM30E16E_(EE).book Page 533 Tuesday, July 8, 201 4 7:11 PM

5747-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
InteriorbuzzerExterior
buzzerWa r n i n g m e s s a g eDetailsCorrection procedure
Once
An attempt was
made to start the
engine with the shift
lever in an incorrect
position.Shift the
shift lever to
P and start
the engine.

Power was turned
off due to the auto-
matic power off
function.
Next time
when start-
ing the
engine,
increase the
engine
speed
slightly and
maintain
that level for
approxi-
mately 5
minutes to
recharge
the battery.
OnceThe electronic key
has a low battery.
Replace the
electronic
key battery.
( → P. 4 8 9 )
(Flashes)
GS350_250_OM_OM30E16E_(EE).book Page 574 Tuesday, July 8, 201 4 7:11 PM

6127-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(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. 2 3 7 )
●There may be a malfunction in the engine immobilizer system.
(→ P. 8 0 )
One of the following may be the cause of the problem:
●The battery may be discharged. ( →P. 6 2 1 )
●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. How-
ever, an interim measure is available to start the engine. ( →P. 613)
If the engine will not start even th ough correct starting procedures are
being followed ( →P. 237), consider each of the following points:
The engine will not start even though the starter motor operates
normally.
The starter motor turns over slowly, the interior lights and head-
lights are dim, or the horn does not sound or sounds at a low vol-
ume.
The starter motor does not turn over
GS350_250_OM_OM30E16E_(EE).book Page 612 Tuesday, July 8, 201 4 7:11 PM

6187-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
If the electronic key does not operate properly
■Doors
Use the mechanical key
(→ P. 123) in order to perform the
following operations:
Locks all the doors
Closes the windows and moon
roof (turn and hold)
*
Unlocks all the doors
Opens the windows and moon
roof (turn and hold)
*
*
: This setting must be customized at any authorized Lexus dealer or
repairer, or another duly qualified
and equipped professional.
If communication between the el ectronic key and vehicle is inter-
rupted ( →P. 134) or the electronic key cannot be used because the
battery is depleted, the smart entry & start system and wireless remote
control cannot be used. In such cases, the doors and trunk can be
opened and the engine can be st arted by following the procedure
below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
1
2
3
4
GS350_250_OM_OM30E16E_(EE).book Page 618 Tuesday, July 8, 201 4 7:11 PM