Page 579 of 696
5
579
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Interior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Once
Con-
tinu-
ous
(Displayed alter-
nately)
(Flashes)
An attempt was
made to exit the
vehicle with the
electronic key
and lock the
doors without
first turning the
“POWER”
switch off.
Turn the
“POWER”
switch off and
lock the doors
again.
Once
(Flashes)
An attempt was
made to start the
hybrid system
without the elec-
tronic key being
present, or the
electronic key
was not func-
tioning nor-
mally.
An attempt was
made to drive
when the regular
key was not
inside the vehi-
cle.
Confirm that the
electronic key is
inside the vehi-
cle.
Page 581 of 696
5
581
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Interior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Once
Con-
tinu-
ous
(Flashes)
• An attempt was
made to lock
the doors using
the smart entry
& start system
while the elec-
tronic key was
still inside the
vehicle.
• An attempt was
made to lock
either front
door by open-
ing a door and
putting the
inside lock but-
ton into the
lock position,
then closing
the door by
pulling on the
outside door
handle with the
electronic key
still inside the
vehicle.
Retrieve the
electronic key
from the vehicle
and lock the
doors again.
Page 582 of 696
582
5-2. Steps to take in an emergency
CT200h_EE (OM76041E)
Interior
buzzerExte-
rior
buzzer
Warning messageDetailsCorrection
procedure
Once
(Flashes)
•When the
doors were
unlocked with
the mechanical
key and then
the “POWER”
switch was
pressed, the
electronic key
could not be
detected in the
vehicle.
• The electronic
key could not
be detected in
the vehicle
even after the
“POWER”
switch was
pressed two
consecutive
times.
Touch the elec-
tronic key to the
“POWER”
switch while
depressing the
brake pedal.
Once
(Flashes)
An attempt was
made to start the
hybrid system
with the shift
position in N.Shift the shift
position to P and
start the hybrid
system.
Page 605 of 696
5
605
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)Remove the valve cap from the
valve of the punctured tire.
Remove the air release cap
from the hose.
Connect the hose to the valve.
Screw the end of the hose
clockwise as far as possible.
Check the specified tire infla-
tion pressure.
Tire inflation pressure is speci-
fied on the label as shown. (P.
649)
Start the hybrid system. (P. 196)
STEP5
STEP6
STEP7
STEP8
STEP9
Page 617 of 696
5
617
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
If the electronic key does not operate properly
Locking and unlocking the doors and key linked functions
Use the mechanical key (P. 54)
in order to perform the following
operations:
An alarm will sound if the
alarm is set. ( P. 138)
Locks all the doors
Closes the windows
* (turn
and hold)
Unlocks all the doors
Opens the windows
* (turn
and hold)
*: This setting must be customized
at any authorized Lexus dealer
or repairer, or another duly
qualified and equipped profes-
sional.
If communication between the electronic key and vehicle is inter-
rupted (P. 82) or the electronic key cannot be used because the bat-
tery is depleted, the smart entry & start system, the push-button start
system and wireless remote control cannot be used. In such cases, the
doors can be opened and the hybrid system can be started by following
the procedure below.
Page 619 of 696
5
619
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Stopping the hybrid system
Set the parking brake, shift the shift position to P and press the “POWER”
switch as you normally do when stopping the hybrid system.
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 is depleted.
(P. 515)
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 620 of 696
620
5-2. Steps to take in an emergency
CT200h_EE (OM76041E)
If the 12-volt battery is discharged
The following procedures may be used to start the hybrid system if the
vehicle’s 12-volt battery is discharged.
You can also call any authorized Lexus dealer or repairer, or another
duly qualified and equipped professional.
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 and fuse
block cover.
Open the exclusive jump
starting terminal cover.
STEP1
STEP2
Page 623 of 696

5
623
5-2. Steps to take in an emergency
When trouble arises
CT200h_EE (OM76041E)
Starting the hybrid system when the 12-volt battery is discharged
The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
Turn off the headlights and the audio system while the hybrid system is
off.
Turn off any unnecessary electrical components when the vehicle is run-
ning at a low speed for an extended period, such as in heavy traffic.
When the 12-volt battery is removed or discharged
The hybrid system may not start. (P. 499)
If the 12-volt battery discharges while the shift position is in P, it may not
be possible to shift the shift position to other positions. In this case, the
vehicle cannot be towed without lifting both front wheels because the
front wheels will be locked. (P. 551)
When the 12-volt battery is reconnected, start the hybrid system and
confirm that the shift position can be changed to each position using the
shift position indicator.
Charging the 12-volt battery
The electricity stored in the 12-volt 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 12-volt battery may discharge, and the hybrid system may be unable to
start. (The 12-volt battery recharges automatically while the hybrid system
is operating.)