Dodge 2013 Dart - Owner Manual - Manual (Page 18)

Key Fob — If Equipped
The Key Fob also contains the Remote Keyless Entry
(RKE) transmitter and an emergency key, which stores in
the rear of the Key Fob.
The emergency key allows for entry into the vehicle
should the battery in the vehicle or the Key Fob go dead.
You can keep the emergency key with you when valet
parking.
To remove the emergency key, slide the mechanical latch
on the face of the Key Fob sideways with your thumb and
then pull the key out with your other hand.
Emergency Key Removal (WIN)
16 THINGS TO KNOW BEFORE STARTING YOUR VEHICLE