Chrysler 2012 300 Owner's Manual page 15

NOTE: In case the ignition switch does not change with
the push of a button, the RKE transmitter (Key Fob) may
have a low or dead battery. In this situation a back up
method can be used to operate the ignition switch. Put
the nose side (side opposite of the emergency key) of the
Key Fob against the ENGINE START/STOP button and
push to operate the ignition switch.
THINGS TO KNOW BEFORE STARTING YOUR VEHICLE 13
Keyless Ignition Node (KIN)
1 — OFF
2 — ACC (ACCESSORY)
3 — ON/RUN
2