When the horn does not sound and the hybrid system cannot be started
Cause Remedy
The 12-volt battery may be
discharged.
Restarting the hybrid system using the jumper (or
booster) cables.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.
One or both of the 12-volt
battery terminals may be
disconnected.
Check if a 12-volt battery terminal is loose.
Contact your Lexus dealer if the problem cannot be
repaired, or if repair procedures are unknown.
The steering lock system
may be malfunctioning.
Contact your Lexus dealer.
Related Links
If the vehicle 12-volt battery is discharged(P. 641)
Restarting the hybrid system when the 12-volt battery is discharged(P. 671)
If the vehicle 12-volt battery is discharged(P. 641)
9-3. If the hybrid system will not start
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