2014 Lexus GS350 engine

7507-2. Steps to take in an emergency
GS350_OM_OM30D41U_(U)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. 7 5 7 )
●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 th e 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 your Lexus dealer.
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

751
GS350_OM_OM30D41U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the shift lever cannot be shifted from P
Set the parking brake.
Turn the engine switch to ACCESSORY mode.
Depress the brake pedal.
Pry the cover up with a flathead
screwdriver or equivalent tool.
To prevent damage to the cover, cover
the tip of the screwdriver with a rag.
Press the shift lock override but-
ton.
The shift lever can be shifted while the
button is pressed.
If the shift lever cannot be shifte d with your foot on the brake pedal,
there may be a problem with the shift lock system (a system to prevent
accidental operation of the shift lever). Have the vehicle inspected by
your Lexus dealer immediately.
The following steps may be used as an emergency measure to ensure
that the shift lever can be shifted:
1
2
3
4
5

752
GS350_OM_OM30D41U_(U)
7-2. Steps to take in an emergency
If the parking brake cannot be released
●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. 7 3 7 )
Fit the parking brake release tool into
the screwdriver handle.
Take out the spare tire. ( P. 7 3 6 )
In the event that the battery is disc harged or switch operation does not
release the parking brake, the par king brake can be released manually
using the procedure belo w. This procedure should be performed only if
necessary, such as in an emergency.
If the switch cannot be operated ev en 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
1
2

7537-2. Steps to take in an emergency
GS350_OM_OM30D41U_(U)
7
When trouble arises
Remove the plug.
Insert the tool and press it down
firmly while turning it counter-
clockwise until it stops.
■Manual operation of the parking brake
The parking brake canno t be set manually.
3
4
CAUTION
■When releasing the parking brake manually
●Shift the shift lever to P, turn the engine switch off and chock the tires. Failure to
do so may cause the vehicle to move, resulting in an accident.
●Turn the engine switch off and check that the parking brake indicator is off. Failure
to do so may cause the system to oper ate and turn the inserted parking brake
release tool, resulting in an injury.

754
GS350_OM_OM30D41U_(U)
7-2. Steps to take in an emergency
If the electronic key does not operate properly
■Doors
Use the mechanical key
(P. 100) in order to perform
the following operations:
Locks all the doors
Closes the windows and moon
roof
* (turn and hold)
Unlocks the door
Turning the key rearward unlocks
the driver’s door. Turning the key
once again within 5 seconds
unlocks the other doors.
Opens the windows and moon
roof
* (turn and hold)
*: This setting must be customized at your Lexus dealer.
If communication between the ele ctronic key and vehicle is inter-
rupted ( P. 110) or the electronic key cann ot be used because the bat-
tery is depleted, the smart access system with push-button start and
wireless remote control cannot be us ed. 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
1
2
3
4

7557-2. Steps to take in an emergency
GS350_OM_OM30D41U_(U)
7
When trouble arises
■Trunk
Turn the mechanical key clock-
wise to open.
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.
The engine switch will turn to IGNI-
TION ON mode.
When the smart access system with
push-button start is deactivated in
customization setting, the engine
switch will turn to ACCESSORY
mode.
Firmly depress the brake pedal and check that is shown on the
multi-information display.
Press the engine switch.
In the event that the engine still cannot be started, contact your Lexus
dealer.
Starting the engine
1
2
3
4

7567-2. Steps to take in an emergency
GS350_OM_OM30D41U_(U)
■Stopping the engine
Shift the shift lever to P and press the engine 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. 6 5 9 )
■Changing engine switch modes
Release the brake pedal and press the engine switch in step above.
The engine does not start and modes will be changed each time the switch is
pressed.( P. 1 74 )
■When the electronic key does not work properly
●Make sure that the smart access system with push-button start has not been deac-
tivated in the customization setting. If it is off, turn the function on.
(Customizable features:  P. 7 9 3 )
●Check if battery-saving mode is set. If it is set, cancel the function. ( P. 1 0 9 )
3

757
GS350_OM_OM30D41U_(U)
7
When trouble arises
7-2. Steps to take in an emergency
If the vehicle battery is discharged
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.
Open the hood ( P. 6 2 6 )
Connect the jumper cables according to the following procedure:
Connect a positive jumper cable cl amp 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.
The following procedures may be used to start the engine if the vehi-
cle’s battery is discharged.
You can also call your Lexus dealer or a qualified repair shop.
1
2
Ty p e A
Ty p e B
1
2
3
4