Ram Trucks 2005 3500 (Gas) - Manual (Page 110)

To lower the head restraint, push in the button and then
push down on the head restraint. Manual Rotary Lumbar Support Adjustment — If
Equipped
Rotating the lumbar control knob on the left side of the
driver’s seatback and on the right side of the passenger’s
seatback increases or decreases the lumbar (lower back)
support.
Head Restraint Adjustment
Manual Lumbar Adjustment
110 UNDERSTANDING THE FEATURES OF YOUR VEHICLE