You can set the temperature synchronously for the driver’s side and the passenger’s side in synchronized mode.
1. Press the SYNC button.
2. Adjust the temperature using the driver’s side temperature control dial.
Press the SYNC button to return to dual mode.
When the system is in dual mode, the driver’s side temperature and the passenger’s side temperature can be set separately.
Honda Civic Owners Manual. Using the Smart Entry with Push Button Start System
When you carry the smart entry remote, you
can lock/unlock the doors, fuel fill door, and
open the trunk.
You can lock/unlock the doors and fuel fill
door within a radius of about 32 inches (80
cm) of the outside door handle. You can open
the trunk within about 32 inches (80 cm)
radius ...