Ram Trucks 2015 Chassis Cab Commercial - Owner Manual - Manual (Page 158)

The fog lights will operate only when the parking lights
are on or when the vehicle headlights are on low beam.
An indicator light located in the instrument cluster will
illuminate when the fog lights are on. The fog lights will
turn off when the switch is pushed a second time, when
the headlight switch is rotated to the off position, or the
high beam is selected.
Lights-On Reminder
If the headlights, parking lights, or cargo lights are left on
after the ignition is turned OFF, a chime will sound when
the driver’s door is opened.
Battery Saver
To protect the life of your vehicle’s battery, load shedding
is provided for both the interior and exterior lights.
If the ignition is OFF and any door is left ajar for 10
minutes or the dimmer control is rotated all the way up
to the dome ON position for 10 minutes, the interior
lights will automatically turn off.
NOTE:
Battery saver mode is cancelled if the ignition is
ON.
Fog Light Switch
156 UNDERSTANDING THE FEATURES OF YOUR VEHICLE