Up for sale is a good functional Volvo VNL rocker switch.  These units have an interchangeable image (this one shows the FOG light) however you can easily pop these switches apart and replace the light up image from what ever your damaged or inoperative switch is.  Or don't- just remember what it is.  These rocker switches are all over these trucks.  They are all the same part number.  Nearly $60 for a new one.  This is a good used one for $10.  Why pay 6X the cost?