Do not modify your vehicle in a manner that may affect its handling, stability, or reliability, or install non-genuine Honda parts or accessories that may have a similar effect.
Even minor modifications to vehicle systems can affect overall vehicle performance.
Always make sure all equipment is properly installed and maintained, and do not make any modification to your vehicle or its systems that might cause your vehicle to no longer meet federal, state, province, territory, and local regulations.
Do not modify or attempt to repair any of the electrical components.
AccessoriesHonda Civic Owners Manual. Ignition Switch and Power Mode Comparison
Ignition Switch
Position
LOCK (0)
(with/without
the key)
ACCESSORY (I)
ON (II)
START (III)
Without Smart Entry
System
Engine is turned off and
power is shut down.
The steering wheel is
locked*1.
No electrical
components can be
...