Lexus CT200h Operating Manual page 563

Starting the hybrid system when the 12-volt battery is discharged
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The hybrid system cannot be started by push-starting.
To prevent 12-volt battery discharge
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Turn off the headlights and the audio system while the hybrid system is off.
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Turn off any unnecessary electrical components when the vehicle is running at a low
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speed for an extended period, such as in heavy traffic.
When the 12-volt battery is removed or discharged
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The hybrid system may not start. (P. 486)
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If the 12-volt battery discharges while the shift position is in P, it may not be possible to
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shift the shift position to other positions. In this case, the vehicle cannot be towed with-
out lifting both front wheels because the front wheels will be locked. (P. 522)
When the 12-volt battery is reconnected, start the hybrid system and confirm that the
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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-
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volt battery. The key may be locked in the vehicle if the alarm is activated. (P. 75)
Charging the 12-volt battery
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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 appli-
ances. 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.)
WARNING
Avoiding 12-volt battery fires or explosions
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Observe the following precautions to prevent accidentally igniting the flammable gas
that may be emitted from the 12-volt battery:
Make sure each jumper cable is connected to the correct terminal and that it is not
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unintentionally in contact with any other than the intended terminal.
Do not allow the other end of the jumper cable connected to the "+" terminal to come
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into contact with any other parts or metal surfaces in the area, such as brackets or
unpainted metal.
Do not allow the + and - clamps of the jumper cables to come into contact with each
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other.
Do not smoke, use matches, cigarette lighters or allow open flame near the 12-volt
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battery.
CT200h_OM_OM76174U_(U)
8-2. Steps to take in an emergency
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