Page 850 of 914
829
7 7-2. Steps to take in an emergency
When trouble arises
GS350/250_EE (OM30C36E)
NOTICE
When handling jumper cables
When connecting the jumper cables, ensure that they do not become entan-
gled in the cooling fans or engine drive belt.
Page 851 of 914
8307-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
If your vehicle overheats
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from under the hood.
If you see steam:
Stop the engine. Carefully lift the hood after the steam subsides
and then restart the engine.
If you do not see steam:
Leave the engine running and carefully lift the hood.
Check to see if the cooling fan is operating.
If the fan is operating:
Wait until the temperature of the engine (shown on the instru-
ment panel) begins to fall and then stop the engine.
If the fan is not operating:
Stop the engine immediately and call any authorized Lexus
dealer or repairer, or another duly qualified and equipped profes-
sional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core (radi-
ator) for any leaks.
If the engine compartment cover
needs to be removed: P. 6 6 1
1
2
3
4
Page 852 of 914

8317-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)Add engine coolant if neces-
sary.
Water can be used in an emergency
if engine coolant is unavailable.
(P. 847)
Have the vehicle inspected at the nearest authorized Lexus dealer
or repairer, or another duly qualified and equipped professional as
soon as possible.
Overheating
If you observe the following, your vehicle may be overheating:
The engine coolant temperature gauge enters the red zone or a loss of power
is experienced.
Steam comes out from under the hood.
5
CAUTION
When inspecting under the hood of your vehicle
Observe the following precautions.
Failure to do so may result in serious injury such as burns.
If steam is seen coming from under the hood, do not open the hood until
the steam has subsided. The engine compartment may be very hot.
Keep hands and clothing away from the fans, etc. while the engine is oper-
ating.
Do not loosen the radiator cap while the
engine and radiator are hot.
High temperature steam or coolant
could spray out.
Page 853 of 914
8327-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
NOTICE
When adding engine coolant
Add coolant slowly after the engine has cooled down sufficiently. Adding
cool coolant to a hot engine too quickly can cause damage to the engine.
To prevent damage to the cooling system
Observe the following precautions:
Avoid contaminating the coolant with foreign matter (such as sand or dust
etc.).
Do not use commercially available coolant additives.
Page 854 of 914
8337-2. Steps to take in an emergency
7
When trouble arises
GS350/250_EE (OM30C36E)
If the vehicle becomes stuck
Stop the engine. Set the parking brake and shift the shift lever to
P.
Remove the mud, snow or sand from around the rear wheels.
Place wood, stones or some other material under the rear wheels
to help provide traction.
Restart the engine.
Shift the shift lever to D or R and release the parking brake.
Then, while exercising caution, depress the accelerator pedal.
When it is difficult to free the vehicle
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt or snow:
Press to turn off TRC.
1
2
3
4
5
Page 855 of 914
8347-2. Steps to take in an emergency
GS350/250_EE (OM30C36E)
CAUTION
When attempting to free a stuck vehicle
If you choose to push the vehicle back and forth to free it, make sure the
surrounding area is clear to avoid striking other vehicles, objects or people.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
When shifting the shift lever
Be careful not to shift the shift lever with the accelerator pedal depressed.
This may lead to unexpected rapid acceleration of the vehicle that may
cause an accident resulting in death or serious injury.
NOTICE
To avoid damaging the transmission and other components
Avoid spinning the rear wheels and depressing the accelerator pedal more
than necessary.
If the vehicle remains stuck even after these procedures are performed, the
vehicle may require towing to be freed.
Page 880 of 914

8588-2. Customization
GS350/250_EE (OM30C36E)
Door lock
(P. 146,
822)
“Unlock on second key
turn” (Allows all doors
to be unlocked by turn-
ing the mechanical key
once in the driver’s
door)Off
(All doors
unlocked
in one
step)
On
(Driver’s
door
unlocked
in one
step, all
doors
unlocked
in two
steps)
O—O
“Auto unlock by shift to
P” (All doors are auto-
matically unlocked
when shifting the shift
lever to P)
OffOnO—O
“Auto unlock by driver
door” (All doors are
automatically unlocked
when driver’s door is
opened)
OnOffO—O
Smart
entry &
start
system
(P. 123)
and
wireless
remote
control
(P. 141)
“Lock/unlock feedback
lights” (Enable/disable
the operation of the
emergency flashers
when the vehicle is
locked or unlocked)
OnOffO—O
“Auto relock timer”
(Adjust the time elapsed
before the automatic
door lock function is
activated if a door is not
opened after being
unlocked)
30
seconds
60
seconds
——O
120
seconds
Open door reminder
buzzer (When locking
the vehicle)
OnOff——O
ItemFunctionDefault
settingCustom-
ized set-
ting
123
Page 881 of 914
859
8 8-2. Customization
Vehicle specifications
GS350/250_EE (OM30C36E)
Smart
entry &
start
system
(P. 123)
“Entry and start system”
(Smart entry & start
system can be disabled)
OnOffO—O
“Select doors to unlock”
(The doors that are
unlocked using the smart
entry & start system can
be selected)
All the
doorsDriver’s
doorO—O
Wireless
remote
control
(P. 141)
Wireless remote controlOnOff——O
“Remote 2-press
unlock” (Allows all
doors to be unlocked by
pressing on the
electronic key once)Off
(All doors
unlocked
in one
step)
On
(Driver’s
door
unlocked
in one
step, all
doors
unlocked
in two
steps)
O—O
Trunk unlocking opera-
tionPress and
hold
(short)
One short
press
——O
Push
twice
Press and
hold
(long)
Off
ItemFunctionDefault
settingCustom-
ized set-
ting
123