2011 Lexus CT200h change key battery

68
1-3. Opening, closing and locking the doors
CT200h_EE (OM76041E)
If the smart entry & start system does not operate properly
Locking and unlocking the doors: Use the mechanical key. (P. 617)
Starting the hybrid system: P. 6 1 8
Electronic key battery depletion
P. 8 3
When the electronic key battery is fully depleted
P. 5 1 5
Customization
Settings (e.g. smart entry & start system) can be changed.
(Customizable features P. 655)

77
1-3. Opening, closing and locking the doors
1
Before driving
CT200h_EE (OM76041E)
Conditions affecting operation
P. 8 2
Electronic key battery depletion
P. 8 3
To operate the system properly
Make sure to carry the electronic key when operating the system.
Depending on the position and holding condition of the electronic key, the
key may not be detected correctly and the system may not operate properly.
(The alarm may go off accidentally, or the door lock prevention may not
function.)
Note for the push-button start system
Even when the electronic key is within the effective range (detection
areas), the system may not operate properly.
For example, the electronic key is on the instrument panel, luggage
cover, floor or in the glove box when the hybrid system is started or
“POWER” switch modes are changed.
Even if the electronic key is not inside the vehicle, it may be possible to
start the hybrid system if the electronic key is near the window.

78
1-3. Opening, closing and locking the doors
CT200h_EE (OM76041E)
Alarms and warning messages
A combination of exterior and interior alarms are used to prevent theft of the
vehicle and unforeseeable accidents resulting from erroneous operation.
Take appropriate measures according to the warning message shown on the
multi-information display. (P. 565)
The following table describes circumstances and correction procedures
when only alarms are sounded.
If the push-button start system does not operate properly
P. 6 1 8
When the electronic key battery is fully depleted
P. 5 1 5
Customization
Settings (e.g. push-button start system) can be changed.
(Customizable features P. 655)
AlarmSituationCorrection procedure
Interior alarm
pings repeatedly
The “POWER” switch was
turned to ACCESSORY
mode while the driver’s
door was open (The
driver’s door was opened
when the “POWER”
switch was in ACCES-
SORY mode)
Turn the “POWER”
switch off and close
the driver’s door.

83
1-3. Opening, closing and locking the doors
1
Before driving
CT200h_EE (OM76041E)
If the wireless remote control does not operate properly
Locking and unlocking the doors: Use the mechanical key. (P. 617)
Electronic key battery depletion
The standard battery life is 1 to 2 years. (The card key battery life is
about a year and a half.)
If the battery becomes low, an alarm will sound in the cabin when the
hybrid system stops. (P. 577)
As the electronic key always receives radio waves, the battery will
become depleted even if the electronic key is not used. The following
symptoms indicate that the electronic key battery may be depleted.
Replace the battery when necessary. (P. 515)
• The smart entry & start system or the wireless remote control does not
operate.
• The detection area becomes smaller.
• The LED indicator on the key surface does not turn on.
To avoid serious deterioration, do not leave the electronic key within 1 m
(3 ft.) of the following electrical appliances that produce a magnetic
field:
•TVs
• Personal computers
• Cellular phones, cordless phones and battery chargers
• Recharging cellular phones or cordless phones
• Glass top ranges
• Table lamps
When the electronic key battery is fully depleted
P. 5 1 5
Customization
Settings (e.g. door unlocking function) can be changed.
(Customizable features P. 655)

199
2-1. Driving procedures
2
When driving
CT200h_EE (OM76041E)
If the “READY” indicator does not come on
If the “READY” indicator does not come on when you press the “POWER”
switch with the shift position in P and the brake pedal depressed, contact
any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional immediately.
If the hybrid system is malfunctioning
P. 5 6 0
If the electronic key battery is depleted
P. 5 1 5
Operation of the “POWER” switch
When operating the “POWER” switch, one short, firm press is enough.
If the switch is pressed improperly, the hybrid system may not start or
the “POWER” switch mode may not change. It is not necessary to press
and hold the switch.
If attempting to restart the hybrid system immediately after turning the
“POWER” switch off, the hybrid system may not start in some cases.
After turning the “POWER” switch off, please wait a few seconds before
restarting the hybrid system.
Automatically P position selection function
P. 2 1 0
When the P position control system malfunctions
The “POWER” switch will not be able to be turned off. In such a case, the
switch can be turned off after applying the parking brake.
Have the vehicle inspected by any authorized Lexus dealer or repairer, or
another duly qualified and equipped professional immediately.

440
3-5. Using the interior lights
CT200h_EE (OM76041E)
Rear interior light
Turns the light on
Turns the door position on
*
*:
When the personal/interior
light main switch is in the off
position, the rear interior
light will not turn on even if
the door is opened with the
rear interior light switch in
door position.
Illuminated entry system
The lights automatically turn on/off according to “POWER” switch mode,
the presence of the electronic key, whether the doors are locked/unlocked,
and whether the doors are opened/closed.
To prevent 12-volt battery discharge
If the interior lights remain on when the door is not fully closed and the inte-
rior light switch (door position on/off) is on, the lights will go off automati-
cally after 20 minutes.
Customization
Settings (e.g. the time elapsed before the lights turn off) can be changed.
(Customizable features P. 655)
Rear interior light