Page 547 of 609
5
521
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Changing “ENGINE START STOP” switch modes and starting the
engine
Automatic transmission
Shift the shift lever to P and apply the brakes.
Touch the Lexus emblem side
of the electronic key to the
“ENGINE START STOP”
switch.
An alarm will sound to indicate
that the start function cannot
detect the electronic key that is
touched to the “ENGINE
START STOP” switch if any of
the doors is opened and closed
while the key is touched to the
switch.
To change “ENGINE START STOP” switch modes: Within
10 seconds of the buzzer sounding, release the brake pedal
and press the “ENGINE START STOP” switch. Modes can
be changed each time the switch is pressed.
(P. 158)
To start the engine: Press the “ENGINE START STOP”
switch within 10 seconds after the buzzer sounds, keeping
the brake pedal depressed.
STEP1
STEP2
STEP3
Page 548 of 609
522
5-2. Steps to take in an emergency
IS250/220d/200d_EEManual transmission
Shift the shift lever to N and depress the clutch pedal.
Touch the Lexus emblem side
of the electronic key to the
“ENGINE START STOP”
switch.
An alarm will sound to indicate
that the start function cannot
detect the electronic key that is
touched to the “ENGINE
START STOP” switch if any of
the doors is opened and closed
while the key is touched to the
switch.
To change “ENGINE START STOP” switch modes: Within
10 seconds of the buzzer sounding, release the clutch pedal
and press the “ENGINE START STOP” switch. Modes can
be changed each time the switch is pressed. (P. 158)
To start the engine: Press the “ENGINE START STOP”
switch within 10 seconds after the buzzer sounds, keeping
the clutch pedal depressed.
In the event that the engine still cannot be started, contact any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
STEP1
STEP2
STEP3
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523
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Stopping the engine
For vehicles with an automatic transmission: Shift the shift lever to P and
press the “ENGINE START STOP” switch as you normally do when stop-
ping the engine.
For vehicles with a manual transmission: Shift the shift lever to N position
and press the “ENGINE START STOP” switch as you normally do when
stopping the engine.
Replacing the key battery
As the above procedure is a temporary measure, it is recommended that the
electronic key battery be replaced immediately when the battery depletes.
(P. 435)
Alarm
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.
Page 551 of 609

5
525
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
Right-hand vehicles
Positive (+) battery terminal on your vehicle
Positive (+) battery terminal on the second vehicle
Negative (-) battery terminal on the second vehicle
Connect the jumper cable to ground on your vehicle as shown
in the illustration.
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 with the “ENGINE
START STOP” switch OFF.
Maintain the engine speed of the second vehicle and turn
the “ENGINE START STOP” switch to IGNITION ON
mode, then start the vehicle's engine.
Once the vehicle’s engine has started, remove the jumper
cables in the exact reverse order in which they were con-
nected.
Once the engine starts, have the vehicle checked at any autho-
rized Lexus dealer or repairer, or another duly qualified and
STEP3
STEP4
STEP5
STEP6
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528
5-2. Steps to take in an emergency
IS250/220d/200d_EE
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic
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 fans are operating.
If the fans are operating:
Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the
engine.
If the fans are not operating:
Stop the engine and call any authorized Lexus dealer
or repairer, or another duly qualified and equipped pro-
fessional.
After the engine has cooled
down sufficiently, check the
engine coolant level and
inspect the radiator core
(radiator) for any leaks.
If the engine compartment
cover needs to be removed:
STEP1
STEP2
STEP3
STEP4
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531
5-2. Steps to take in an emergency
When trouble arises
IS250/220d/200d_EE
If you run out of fuel and the engine stalls (IS220d and IS200d)
NOTICE
When restarting the engine
Do not crank the engine before refueling and priming the fuel system. This
may damage the engine and fuel system.
If you run out of fuel and the engine dies:
Refuel your vehicle.
Prime the fuel system by
using the satellite switches.
Push “” or “” to select prim-
ing operation mode. ( )
Press the “ON/OFF” button to
select “ON”. ( )
The priming operation will
start.
Wait for 1 minute and start the engine. (P. 156)
The priming operation will automatically stop when the engine
starts.
If the engine does not start after the above steps performed,
wait for 10 seconds and try step 2 and step 3 again. If the
engine still does not start, contact any authorized Lexus dealer
or repairer, or another duly qualified and equipped profes-
sional.
fihidhl dllihl
STEP1
STEP2
STEP3
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5-2. Steps to take in an emergency
IS250/220d/200d_EE
If the vehicle becomes stuck
CAUTION
When attempting to free a stuck vehicle
If you choose to rock the vehicle back and forth to free it, make sure the sur-
rounding area is clear, to avoid striking other vehicles, objects or persons.
The vehicle may also lunge forward or lunge back suddenly as it becomes
free. Use extreme caution.
When shifting the shift lever
With automatic transmission vehicles, 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 and result in death or serious injury.
Carry out the following procedures if the tires spin or the vehicle
becomes stuck in mud, dirt, or snow.
Stop the engine. Set the parking brake and shift the shift
lever to P (vehicles with an automatic transmission) or N
(vehicles with a manual transmission).
Remove the mud, snow, or sand from around the stuck
tire.
Place wood, stones or some other material to help pro-
vide traction under the tires.
Restart the engine.
Shift the shift lever to the D or R position (vehicles with
an automatic transmission) or 1 or R position (vehicles
with a manual transmission), release the parking brake
and carefully apply the accelerator to free the vehicle.
Turn off TRC and VSC if these functions are hampering
fhhil()STEP1
STEP2
STEP3
STEP4
STEP5
Page 560 of 609
534
5-2. Steps to take in an emergency
IS250/220d/200d_EE
If your vehicle has to be stopped in an emergency
Only in an emergency, such as if it becomes impossible to stop the
vehicle in the normal way, stop the vehicle using the following proce-
dure:
Steadily step on the brake pedal with both feet and firmly
depress it.
Do not pump the brake pedal repeatedly as this will increase
the effort required to slow the vehicle.
Shift the shift lever to N.
If the shift lever is shifted to N
After slowing down, stop the vehicle in a safe place by
the road.
Stop the engine.
If the shift lever cannot be shifted to N
Keep depressing the brake pedal with both feet to reduce
vehicle speed as much as possible.
Stop the engine by pressing
and holding the “ENGINE
START STOP” switch for 3
consecutive seconds or more.
STEP1
STEP2
STEP3
STEP4
STEP3
Press and hold for 3 seconds or
STEP4