2016 LEXUS LS460L battery

6177-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
■When “Electrical equipment operation is limited” is shown
This message indicates that the battery is low. When the message is shown, opera-
tion of electrical equipment that uses a large amount of electric power, such as the
air conditioning system, may be limited temporarily. This does not indicate a mal-
function. Operation of electrical equipment will be restored after the battery is
charged.
■Warning buzzer
In some cases, the buzzer may not be heard due to ambient noise or sounds from the
audio system.

6277-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
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. 259)
●There may be a malfunction in the engine immobilizer system.
( P. 104)
One of the following may be the cause of the problem:
●The battery may be discharged. ( P. 636)
●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. 627)
If the engine will not start
If the engine will not start even though correct starting procedures are
being followed ( P. 259), 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

6287-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
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. 636)
●There may be a malfunction in the steering lock system.
Contact your Lexus dealer if the problem cannot be repaired, or if repair proce-
dures 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:
Turn the engine switch to IGNITION ON mode ( P. 260) and check
that the parking brake is set.
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 your Lexus dealer.
The starter motor does not turn over, the interior lights and head-
lights do not turn on, or the horn does not sound.
Emergency start function
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6297-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
●Shift the shift lever to P.
●Turn the engine switch off.
●Check that the parking brake indicator is off.
●Chock the tires.
Take out the parking brake release tool and the screwdriver from the
trunk. ( P. 619)
Replace the screwdriver head
with the parking brake release
tool.
Take out the spare tire. ( P. 622)
If the parking brake cannot be released
In the event that the battery is discharged or switch operation does not
release the parking brake, the parking brake can be released manually
using the procedure below. This pro cedure should be performed only if
necessary, such as in an emergency.
If the switch cannot be operated even when the battery is normal, the
parking brake system may be malfunctioning. Have the vehicle
inspected by your Lexus dealer immediately.
Before releasing the parking brake manually
Releasing the parking brake manually
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6317-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
Use the mechanical key built in to the electronic keys to operate the
doors. ( P. 145)
On some models: An alarm will sound if the alarm is set when the trunk or doors
are unlocked. ( P. 112)
■Doors
Remove the cover on the
driver’s door handle.
If the electronic key does not operate properly
If communication between the electronic key and vehicle is inter-
rupted ( P. 163) 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 started by following the procedure
below.
Locking and unlocking the doors, unlocking the trunk and key
linked functions
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6347-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
Ensure that the shift lever is in P and depress the brake pedal.
Touch the Lexus emblem side of
the electronic key to the engine
switch.
If any of the doors is opened or closed
after the key was touched to the
switch to start the vehicle, an alarm
will sound to indicate that the start
function cannot detect the key.
Press the engine switch within 10 seconds of the buzzer sounding,
keeping the brake pedal depressed.
In the event that the engine still cannot be started, contact your Lexus
dealer.
■Stopping the engine
Shift the shift lever to P and press the engi ne switch as you normally do when stop-
ping the engine.
■Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the elec-
tronic key battery be replaced immediately when the battery is depleted. ( P. 575)
■Alarm (on some models)
Using the mechanical key to lock the doors will not set the alarm system.
If a door is unlocked using the mechanical key when the alarm system is set, the
alarm may be triggered.
■Changing engine switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press the
engine switch.
The engine does not start and modes will be changed each time the switch is
pressed. ( P. 260)
Starting the engine
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6367-2. Steps to take in an emergency
LS460/LS460L_GE (OM50G06E)
If you have a set of jumper (or booster) cables and a second vehicle with a
12-volt battery, you can jump start your vehicle by following the steps
below.
Confirm that the electronic key is
being carried.
When connecting the jumper (or
booster) cables, depending on the sit-
uation, the alarm may activate and
doors locked. (P. 114)
Open the hood. Remove the engine compartment covers and battery
cover. ( P. 536, 541, 543)
If the vehicle battery is discharged
The following procedures may be used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus deal er or a qualified repair shop.
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6377-2. Steps to take in an emergency
7
When trouble arises
LS460/LS460L_GE (OM50G06E)
Connect the jumper cables according to the following procedure:
Left-hand drive vehicles
Right-hand drive vehicles
Connect a positive jumper cable clamp to the positive (+) battery
terminal on your vehicle.
Connect the clamp on the other end of the positive cable to the pos-
itive (+) battery terminal on the second vehicle.
Connect a negative cable clamp to the negative (-) battery terminal
on the second vehicle.
Connect the clamp at the other end of the negative cable to a solid,
stationary, unpainted metallic point away from the battery and any
moving parts, as shown in the illustration.
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