engine Lexus GS250 2014 Owner's Manual

6177-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■Manual operation of the parking brake
The parking brake cannot be set manually.
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 operate and turn the inserted parking brake
release tool, resulting in an injury.
GS350_250_OM_OM30E16E_(EE).book Page 617 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

6197-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■Tr u n k
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 entry & start system
is deactivated in customization setting,
the engine switch will turn to ACCES-
SORY 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 any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional.
Starting the engine
1
2
3
4
GS350_250_OM_OM30E16E_(EE).book Page 619 Tuesday, July 8, 201 4 7:11 PM

6207-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
■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. 4 8 9 )
■Alarm (if equipped)
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
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. 2 3 8 )
■When the electronic key does not work properly
●Make sure that the smart entry & start system has not been deactivated in the cus-
tomization setting. If it is off, turn the function on.
(Customizable features: →P. 6 5 0 )
●Check if battery-saving mode is set. If it is set, cancel the function. ( →P. 1 3 3 )
CAUTION
■When using the mechanical key and operating the power windows and moon
roof
Operate the power window or moon roof after checking to make sure that there is
no possibility of any passenger having any of their body parts caught in the window
or moon roof.
Also, do not allow children to operate the mechanical key. It is possible for children
and other passengers to get caught in power window and moon roof.
3
GS350_250_OM_OM30E16E_(EE).book Page 620 Tuesday, July 8, 201 4 7:11 PM

621
7
7-2. Steps to take in an emergency
When trouble arises
GS350_250_OM_OM30E16E_(EE)
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. 4 5 0 )
Connect the jumper cables according to the following procedure:
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.
The following procedures may be used to start the engine if the vehi-
cle’s battery is discharged.
You can also call any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
1
2
Ty p e A
Ty p e B
1
2
3
4
GS350_250_OM_OM30E16E_(EE).book Page 621 Tuesday, July 8, 201 4 7:11 PM

6227-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
Start the engine of the second vehicle. Increase the engine speed
slightly and maintain at that level for approximately 5 minutes to
recharge the battery of your vehicle.
Open and close any of the doors of your vehicle with the engine switch
off.
Maintain the engine speed of the second vehicle and start the engine of
your vehicle by turning the engine switch to IGNITION ON mode.
Once the vehicle’s engine has started, remove the jumper cables in the
exact reverse order from which they were connected.
Once the engine starts, have the vehicle inspected at any authorized
Lexus dealer or repairer, or another duly qualified and equipped profes-
sional as soon as possible.
■Starting the engine when the battery is discharged
The engine cannot be started by push-starting.
■To prevent battery discharge
●Turn off the headlights and the audio system while the engine is off.
●Turn off any unnecessary electrical components when the vehicle is running at a
low speed for an extended period, such as in heavy traffic.
■Charging the battery
The electricity stored in the battery will discharge gradually even when the vehicle is
not in use, due to natural discharge and the draining effects of certain electrical
appliances. If the vehicle is left for a long time, the battery may discharge, and the
engine may be unable to start. (The battery recharges automatically during driving.)
3
4
5
6
GS350_250_OM_OM30E16E_(EE).book Page 622 Tuesday, July 8, 201 4 7:11 PM

6237-2. Steps to take in an emergency
7
When trouble arises
GS350_250_OM_OM30E16E_(EE)
■When recharging or replacing the battery
●For vehicles with an alarm: make sure that the key is not inside the vehicle when
recharging or replacing the battery. The key may be locked in the vehicle if the
alarm is activated. (→P. 88)
●In some cases, it may not be possible to unlock the doors using the smart entry &
start system when the battery is discharged. Use the wireless remote control or the
mechanical key to lock or unlock the doors.
●The engine may not start on the first attempt after the battery has recharged but
will start normally after the second attempt. This is not a malfunction.
●The engine switch mode is memorized by the vehicle. When the battery is recon-
nected, the system will return to the mode it was in before the battery was dis-
charged. Before disconnecting the battery, turn the engine switch off.
If you are unsure what mode the engine switch was in before the battery dis-
charged, be especially careful when reconnecting the battery.
CAUTION
■Avoiding battery fires or explosions
Observe the following precautions to prevent accidentally igniting the flammable
gas that may be emitted from the battery:
●Make sure each jumper cable is connected to the correct terminal and that it is
not unintentionally in contact with any other than the intended terminal.
●Do not allow the other end of the jumper cable connected to the “+” terminal to
come into contact with any other parts or metal surfaces in the area, such as
brackets or unpainted metal.
●Do not allow the + and - clamps of the jumper cables to come into contact with
each other.
●Do not smoke, use matches, cigarette lighters or allow open flame near the bat-
tery.
GS350_250_OM_OM30E16E_(EE).book Page 623 Tuesday, July 8, 201 4 7:11 PM

6247-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
CAUTION
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related
parts contain lead and lead compounds. Observe the following precautions when
handling the battery:
●When working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery.
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.
NOTICE
■When handling jumper cables
When connecting the jumper cables, ensure that they do not become entangled in
the cooling fans or engine drive belt.
GS350_250_OM_OM30E16E_(EE).book Page 624 Tuesday, July 8, 2014 7:11 PM

625
7
7-2. Steps to take in an emergency
When trouble arises
GS350_250_OM_OM30E16E_(EE)
If your vehicle overheats
Stop the vehicle in a safe place and turn off the air conditioning system,
and then stop the engine.
If you see steam:
Carefully lift the hood after the steam subsides.
If you do not see steam:
Carefully lift the hood.
After the engine has cooled down sufficiently, inspect the hoses and
radiator core (radiator) for any leaks.
Radiator
Cooling fans
If a large amount of coolant leaks,
immediately contact any autho-
rized Lexus dealer or repairer, or
another duly qualified and
equipped professional.
The following may indicate that your vehicle is overheating.
●The needle of the engine coolant temperature gauge ( →P. 99)
enters the red zone or a loss of engine power is experienced. (For
example, the vehicle speed does not increase.)
●Steam is coming from under the hood.
Correction procedures
1
2
3
1
2
GS350_250_OM_OM30E16E_(EE).book Page 625 Tuesday, July 8, 201 4 7:11 PM

6267-2. Steps to take in an emergency
GS350_250_OM_OM30E16E_(EE)
The coolant level is satisfactory if it is between the “FULL” and “LOW”
lines on the reservoir.Reservoir“FULL”
“LOW”
Coolant inlet cap
Add coolant if necessary.
Water can be used in an emergency if
coolant is unavailable.
Start the engine and turn the air co nditioning system on to check that
the radiator cooling fans operate and to check for coolant leaks from
the radiator or hoses.
The fans operate when the air conditioning system is turned on immediately after
a cold start. Confirm that the fans are operating by checking the fan sound and air
flow. If it is difficult to check these, turn the air conditioning system on and off
repeatedly. (The fans may not operate in freezing temperatures.)
If the fans are not operating:
Stop the engine immediately and contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
If the fans are operating:
Have the vehicle inspected at the nearest any authorized Lexus dealer
or repairer, or another duly qualified and equipped professional.
4
1
2
3
4
5
6
7
GS350_250_OM_OM30E16E_(EE).book Page 626 Tuesday, July 8, 201 4 7:11 PM