Forum Discussion

GordonThree's avatar
GordonThree
Explorer
Feb 09, 2015

purpose of roof lights?

Why do 3/4 and above pickups have a row of lights on the roof, but not the 1/2 ton?

What purpose do the lights serve, other than working-man's "bling"?
  • My 2011 2500 has them and has to be registered in VT as a 'heavy' vehicle per DMV rules.
  • My '04.5 2500 does not have them. My brother bought a used '04.5 2500 that has them. Must have been someones personal preference.
  • KD4UPL wrote:
    The lights are required for all vehicles over a certain GVWR. I'm not sure what it is but I think it's 10,000 pounds. This makes them optional on some but not all 2500 trucks, depending on GVWR. All duallys that I know of would need them.
    You didn't ask but the 3 lights below the tailgate of a dually are also DOT required because of the width of the vehicle.


    I don't know what the weight is either but one tons have had to have them for some time and that would mean something around 8500# to 9k#.
  • The lights are required for all vehicles over a certain GVWR. I'm not sure what it is but I think it's 10,000 pounds. This makes them optional on some but not all 2500 trucks, depending on GVWR. All duallys that I know of would need them.
    You didn't ask but the 3 lights below the tailgate of a dually are also DOT required because of the width of the vehicle.
  • Clearance lights as required by DOT for vehicles used commercially would be my guess.