2012 Lexus CT200h hybrid battery

5
627
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
If the hybrid system will not start
Reasons for the hybrid system not starting vary depending on the situ-
ation. Check the following and perform the appropriate procedure:
The hybrid system will not start even though the correct start-
ing procedure is being followed. (P. 198)
One of the following may be the cause of the problem:
The electronic key may not be functioning properly.
* (P.
630)
There may not be sufficient fuel in the vehicle’s tank.
Refuel the vehicle.
There may be a malfunction in the immobilizer system.
*
(P. 135)
There may be a malfunction in the P position control sys-
tem.
* (P. 202, 580)
*: It may not be possible to shift the shift position other than P.
The interior lights and headlights are dim, or the horn does not
sound or sounds at a low volume.
One of the following may be the cause of the problem:
The 12-volt battery may be discharged. (P. 508)
The 12-volt battery terminal connections may be loose or

628
5-2. Steps to take in an emergency
CT200h_OM_OM76067E_(EE)
Emergency start function
When the hybrid system does not start, the following steps can be
used as an interim measure to start the hybrid system if the
“POWER” switch is functioning normally:
Set the parking brake.
Turn the “POWER” switch to ACCESSORY mode.
Press and hold the “POWER” switch for about 15 seconds
while depressing the brake pedal firmly.
Even if the hybrid system can be started using the above steps, the
system may be malfunctioning. Have the vehicle inspected by any
authorized Lexus dealer or repairer, or another duly qualified and
equipped professional.
The interior lights and headlights do not turn on, or the horn
does not sound.
One of the following may be the cause of the problem:
One or both of the 12-volt battery terminals may be discon-
nected.
The 12-volt battery may be discharged. (P. 508)
Contact any authorized Lexus dealer or repairer, or another duly
qualified and equipped professional if the problem cannot be
repaired, or if repair procedures are unknown.
STEP1
STEP2
STEP3

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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)

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633
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
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

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635
5-2. Steps to take in an emergency
When trouble arises
CT200h_OM_OM76067E_(EE)
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 of your vehicle with the
“POWER” switch off.
Maintain the engine speed of the second vehicle and start
the hybrid system of your vehicle by turning the
“POWER” switch to ON mode.
Make sure the “READY” indicator light comes on. If the
indicator light does not come on, contact any authorized
Lexus dealer or repairer, or another duly qualified and
equipped professional.
Once the hybrid system has started, remove the jumper
cables in the exact reverse order from which they were
connected.
To install the engine cover, conduct the removal proce-
dure in reverse. After installing, check that the fixed pins
are inserted securely.
Once the hybrid system starts, have the vehicle inspected at any
th i d L d l i th d l lifi dSTEP4
STEP5
STEP6
STEP7
STEP8
STEP9

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.)

654
6-1. Specifications
CT200h_OM_OM76067E_(EE)
Hybrid battery (traction battery)
Lubrication system
*: The engine oil capacity is a reference quantity to be used when exchang-
ing. Warm up the engine and turn off the hybrid system, wait more than 5
minutes, and check the oil level on the dipstick
Ty p eNickel-Metal hydride battery
Voltage7.2 V/module
Capacity6.5 Ah (3HR)
Quantity28 modules
Overall voltage201.6 V
Oil capacity
(Drain and refill
 reference
*)
With filter
Without filter
4.2 L (4.4 qt., 3.7 lmp.qt.)
3.9 L (4.1 qt., 3.4 lmp.qt.)

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.