It's a Canadian requirement to have headlights come on automatically whenever the vehicle is moving. Most RV manufacturers take the easy way out and make it standard on everything they make, so that Canadians who buy their products don't have an issue and it saves them having to make different equipment standards for the two markets.
In the early 1950's Volvo came out with a DRL concept that put the headlights in series, when the headlights weren't actually switched on, so that each unit saw 6 volts instead of 12. On 6V they were much less bright, but you could tell by the larger area of light that the vehicle was moving. When you actually switched the headlights on, they went into parallel mode, each getting 12 volts and giving full brightness.
The worst example of DRLs I ran across was early 1990s GM cars. I flew into Wichita on a business trip late in the evening and got a rental Chevy Cavalier. When I turned the key, the headlights came on at full brightness and the instrument panel lit up. I drove about 30 miles to my hotel and got a couple of overtaking vehicles give me the finger as they passed.
In daylight the next morning, I noticed a sticker on the instrument panel, in very small white letters on a clear background that said "When the daytime running lights system turns on the headlights, it does not turn on the tail lights". You couldn't even see that sticker in the panel lights! I'd driven 30 miles in the pitch black on a freeway, in the rain, with no tail-lights on! Thanks to the sharp reactions of Kansas drivers, I didn't get rear-ended, but no thanks to those encephalophallics at GM who designed such a stupid system.
I haven't bothered yet to figure out what my GT has. The lights do come on whenever it's running, but I don't know how they work. We very rarely drive after dark, so it hasn't been an issue. The headlights are so wimpy that I'm afraid they'll blow out if I go above 55 mph! I think there are gerbils in there lighting candles.
Frank and Eileen
No longer RVers or FR owners