Ram Trucks 2015 ProMaster - Owner Manual - Manual (Page 184)

WARNING!
Do not plug in or remove the iPod® or external
device while driving. Failure to follow this warning
could result in a collision.
STEERING WHEEL AUDIO CONTROLS
The remote sound system controls are located on the
surface of the steering wheel.
The right-hand control is a rocker-type switch and con-
trols the SCAN functions of the sound system.
The left-hand control is a rocker-type switch and controls
the volume of the sound system plus a button to mute the
Sound System.
Remote Sound System Controls
182 UNDERSTANDING YOUR INSTRUMENT PANEL