Lexus CT200H Manual page 625

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:

The 12-volt battery may be discharged. (P. 624)

One or both of the 12-volt battery terminals may be disconnected. (P.
504)
Contact any authorized Lexus dealer or repairer, or another duly qualified and
equipped professional if the problem cannot be repaired, or if repair proce-
dures are unknown.
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 func-
tioning normally. Do not use this starting procedure except in cases of
emergency.
1
Set the parking brake.
2
Turn the power switch to ACCESSORY mode.
3
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 profes-
sional.
CT200h_OM_OM76102E_(EE)
8-2. Steps to take in an emergency
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