2012 Lexus CT200h alarm

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1-7. Theft deterrent system
1
Before driving
CT200h_OM_OM76067E_(EE)
The vehicle is inside an automatic or high-pressure car wash.
The vehicle experiences impacts, such as hail, lightning strikes, and
other kinds of repeated impacts or vibrations.
Tilt sensor detection considerations
The sensor may trigger the alarm in the following situations:
The vehicle is transported by a ferry, trailer, train, etc.
The vehicle is parked in a parking garage.
The vehicle is inside a car wash that moves the vehicle.
Any of the tires loses air pressure.
The vehicle is jacked up.
An earthquake occurs or the road caves in.
Unstable items, such as dangling acces-
sories or clothes hanging on the coat
hooks, are in the vehicle.
The vehicle is parked in a place where
extreme vibrations or noises occur,
such as in a parking garage.
Ice or snow is removed from the vehi-
cle, causing the vehicle to receive
repeated impacts or vibrations.

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2-4. Using other driving systems
CT200h_OM_OM76067E_(EE)
CAUTION
Limitations of the pre-crash safety system
Do not overly rely on the pre-crash safety system. Always drive safely, tak-
ing care to observe your surroundings and checking for any obstacles or
other road hazards.
Failure to do so may cause an accident resulting in death or serious injury.
Cautions regarding the assist contents of the system
By means of alarms and brake control, the pre-crash safety system is
intended to assist the driver in avoiding collisions through the process of
LOOK-JUDGE-ACT. There are limits to the degree of assistance the system
can provide, so please keep in mind the following important points.
Assisting the driver in watching the road
The pre-crash safety system is only able to detect obstacles directly in
front of the vehicle, and only within a limited range. It is not a mechanism
that allows careless or inattentive driving, and it is not a system that can
assist the driver in low-visibility conditions. It is still necessary for the
driver to pay close attention to the vehicle’s surroundings.
Assisting the driver in making correct judgement
When attempting to estimate the possibility of a collision, the only data
available to the pre-crash safety system is that from obstacles it has
detected directly in front of the vehicle. Therefore, it is absolutely neces-
sary for the driver to remain vigilant and to determine whether or not there
is a possibility of collision in any given situation.
Assisting the driver in taking action
The pre-crash safety system’s braking assist feature is designed to help
reduce the severity of a collision, and so only acts when the system has
judged that a collision is unavoidable. This system by itself is not capable
of automatically avoiding a collision or bringing the vehicle to a stop
safely. For this reason, when encountering a dangerous situation the driver
must take direct and immediate action in order to ensure the safety of all
involved.

339
3-2. Using the audio system
3
Interior features
CT200h_OM_OM76067E_(EE)Traffic information
Press .
TP mode: The system automatically switches to traffic informa-
tion when a broadcast with a traffic information signal
is received.
The station returns to the previous one when the traffic
information ends.
TA mode:Traffic information can be heard only when a signal is
received. The system switches to the mute mode when
a signal is not received. In CD or MP3/WMA mode,
the system automatically switches to traffic informa-
tion when a signal is received.
The audio system returns to the mute, CD or MP3/
WMA mode when the traffic information ends.
Audio system mode changes as follows each time . is
pressed:
FM modes: “TP” “TA” off
Modes other than the radio modes: “TA” off
Emergency broadcast reception mode
“ALARM” appears in the display in the event that an emergency
broadcast is received, and the emergency broadcast is aired.

512
4-3. Do-it-yourself maintenance
CT200h_OM_OM76067E_(EE)
CAUTION
Chemicals in the 12-volt battery
The 12-volt battery contains poisonous and corrosive sulfuric acid and may
produce hydrogen gas which is flammable and explosive. To reduce the risk
of death or serious injury, take the following precautions while working on
or near the 12-volt battery:
Do not cause sparks by touching the 12-volt battery terminals with tools.
Do not smoke or light a match near the 12-volt battery.
Avoid contact with eyes, skin and clothes.
Never inhale or swallow electrolyte.
Wear protective safety glasses when working near the 12-volt battery.
Keep children away from the 12-volt battery.
Where to safely charge the 12-volt battery
Always charge the 12-volt battery in an open area. Do not charge the 12-volt
battery in a garage or closed room where there is insufficient ventilation.
How to recharge the 12-volt battery
Only perform a slow charge
*. The 12-volt battery may explode if charged at
a quicker rate.
*: 4.2 A or less on vehicles with a navigation system or alarm
3.5 A or less on vehicles without a navigation system and alarm

5
631
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
Starting the hybrid system
Depress the brake pedal.
Touch the Lexus emblem side
of the electronic key to the
“POWER” switch.
If any of the doors is opened or
closed while the key is being
touched to the switch, an alarm
will sound to indicate that the
start function cannot detect the
electronic key.
Press the “POWER” switch within 10 seconds of the buzzer
sounding, keeping the brake pedal depressed.
In the event that the hybrid system still cannot be operated, contact
any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
STEP1
STEP2
STEP3

632
5-2. Steps to take in an emergency
CT200h_OM_OM76067E_(EE)
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. 527)
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. (P. 142)
Changing “POWER” switch modes
Within 10 seconds of the buzzer sounding, release the brake pedal and press
the “POWER” switch.
The hybrid system does not start and modes will be changed each time the
switch is pressed.(P. 200)

636
5-2. Steps to take in an emergency
CT200h_OM_OM76067E_(EE)
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. 5 1 1 )
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. 563)
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.
Make sure that the key is not inside the vehicle when recharging or
replacing the 12-volt battery. The key may be locked in the vehicle if the
alarm is activated. (P. 142)
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.)

658
6-1. Specifications
CT200h_OM_OM76067E_(EE)
Ignition system
Electrical system
Spark plug
MakeDENSO SC20HR11
Gap1.1 mm (0.043 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust the spark plug gap.
12-volt battery
12.6  12.8 V Fully charged
12.2  12.4 V Half charged
11.8  12.0 V Discharged
(Voltage is checked 20 minutes after the hybrid
system and all lights are turned off.)Open voltage
at 20 C (68 F):
Charging rates
With a navigation system or alarm
4.2 A max.
Without a navigation system and alarm
3.5 A max.