Dodge 2012 Ram - Manual (Page 168)

to the right until you hear a click. This feature is termed
the “Parade” mode and is useful when headlights are
required during the day. Cargo Light
The cargo lights are turned on by pressing on the cargo
button.
The cargo lights will also turn on for approximately
30 seconds when a RKE transmitter UNLOCK button is
pressed, as part of the Illuminated Entry feature.
Dimmer Control Cargo Light Switch
166 UNDERSTANDING THE FEATURES OF YOUR VEHICLE