Ram Trucks 2015 3500 - Owner Manual - Manual (Page 150)

Power Lumbar — If Equipped
Vehicles equipped with power driver or passenger seats
may be also be equipped with power lumbar. The power
lumbar switch is located on the outboard side of the
power seat. Push the switch forward to increase the
lumbar support. Push the switch rearward to decrease
the lumbar support.
Lumbar Control Switch
148 UNDERSTANDING THE FEATURES OF YOUR VEHICLE