Dodge 2012 Challenger - Owner Manual - Manual (Page 334)

ADDING FUEL
Fuel Filler Cap (Gas Cap)
The gas cap is located behind the fuel filler door on the
left side of the vehicle. Use a finger to pull open the door.
If the gas cap is lost or damaged, be sure the replacement
cap is for use with this vehicle.
NOTE: When removing the fuel filler cap, lay the cap
tether in the hook, located on the fuel filler door.
Fuel Filler Cap – Base Model
Fuel Filler Cap – R/T Model
332 STARTING AND OPERATING