Ram Trucks 2015 ProMaster City - Owner Manual - Manual (Page 144)

Rear Cargo Lights
Your vehicle may be equipped with rear cargo lights that
can be set to three different positions (Off/Left Position,
Center Position, On/Right Position). Using the interior
light lens, push the lens to the right from its center
position and the lights are always on. Push the lens to the
left from its center position and the lights are always off.
Leave the lens in the center position, and the light is
turned on and off when the doors are opened or closed.
Rear Cargo Light
142 UNDERSTANDING THE FEATURES OF YOUR VEHICLE