battery Lexus GS250 2014 Service Manual

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
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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
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491 6-3. Do-it-yourself maintenance
6
Maintenance and care
GS350_250_OM_OM30E16E_(EE)
CAUTION
■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.
■Lithium battery precautions
RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE.
DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS
NOTICE
■For normal operation after 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.
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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
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5347-1. Essential information
GS350_250_OM_OM30E16E_(EE)
Emergency flashers
Press the switch.
All the turn signal lights will flash.
To turn them off, press the switch once
again.
■Emergency flashers
If the emergency flashers are used for a long time while the engine is not operating,
the battery may discharge.
The emergency flashers are used to warn other drivers when the vehi-
cle has to be stopped in the road due to a breakdown, etc.
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5497-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■Front passenger detection sensor, seat belt reminder and warning buzzer
●If luggage is placed on the front passenger seat, the front passenger detection sen-
sor may cause the warning light to flash and the warning buzzer to sound even if a
passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■If the malfunction indicator lamp comes on while driving
The malfunction indicator lamp will come on if the fuel tank becomes completely
empty. If the fuel tank is empty, refuel the vehicle immediately. The malfunction indi-
cator lamp will go off after several trips.
If the malfunction indicator lamp does not go off, contact any authorized Lexus
dealer or repairer, or another duly qualified and equipped professional as soon as
possible.
■Electric power steering system warning light (warning buzzer)
When the 12-volt battery charge becomes insufficient or the voltage temporarily
drops, the electric power steering system warning light may come on and the warn-
ing buzzer may sound.
■When the tire pressure warning light comes on
Carry out the following procedure after the tire temperature has lowered sufficiently.
●Check the tire inflation pressure and adjust to the appropriate level.
●If the warning light does not go out even after several minutes, check that the tire
inflation pressure is at the specified level and carry out initialization.
The warning light may come on again if the above operations are conducted without
first allowing the tire temperature to lower sufficiently.
■The tire pressure warning light may come on due to natural causes
The tire pressure warning light may come on due to natural causes such as natural
air leaks and tire inflation pressure changes caused by temperature. In this case,
adjusting the tire inflation pressure will turn off the warning light (after a few minutes).
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5667-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■Warning message in radar cruise mode (if equipped)
In the following cases, the warning message may not be displayed even if vehicle-to-
vehicle distance decreases:
●When your vehicle and the vehicle ahead are traveling at the same speed or the
vehicle ahead is traveling more quickly than your vehicle
●When the vehicle ahead is traveling at a very low speed
●Immediately after cruise control speed is set
●At the instant the accelerator pedal is depressed
■The LKA (Lane-Keeping Assist) lane departure warning function
In the following cases, the warning message will not be displayed even if a lane line is
crossed.
●When the vehicle speed deviates from the operating range of the LKA system
functions
●When the lane lines cannot be recognized
●When the steering wheel is turned as far as necessary to cause the vehicle to
change lanes
■Open door warning message
The open door warning message continues to display until a door or the trunk is fully
closed, even if the engine switch is turned off. However, approximately 20 minutes
after a door or the trunk is not fully closed, the battery-saving function operates and
the display turns off even though a door or the trunk is not fully closed.
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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)
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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
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6137-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
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. 6 2 1 )
●There may be a malfunction in the steering lock system.
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair procedures
are unknown.
When the engine does not start, the following steps can be used as an
interim measure to start the engine if the engine switch is functioning nor-
mally:
Set the parking brake.
Shift the shift lever to P.
Turn the engine switch to ACCESSORY mode.
Press and hold the engine switch for about 15 seconds while depress-
ing the brake pedal firmly.
Even if the engine can be started using the above steps, the system may be
malfunctioning. Have the vehicle inspected by any authorized Lexus
dealer or repairer, or another du ly qualified and equipped professional.
The starter motor does not turn ov er, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function
1
2
3
4
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