Originally Posted by Oldme
Past training tells me:
1- requirements very by state.
2- Dolly/trailer lights take the place of the towed vehicle lights *
3- If you can see the lights on the tow vehicle you do not need other lights.
You must be able to see brake and turn signals from the rear on both sides. *
* This was the law in Va. when I was LEO.
The same is true in Wisconsin. However to avoid problems in other places we purchased a set of magnetic lights to stick on the trunk lid when towing our Buick Le Sabre on the dolly.
I tapped into the wiring for the dolly lights and added a socket on the dolly tongue to plug in the additional lights. We used the system for about 25,000 miles before switching to a towing Jeep Wrangler 4 down.
A light kit and additional socket costs less than $50.00. It's good insurance for inattentive drivers.