It also depends on how the towing electrics are installed. The better systems disable the lamp out warning when the 13pin connector is in use. This is the main problem that I have come across.
------------- 'A sure cure for sea-sickness is to sit under a tree'
Our Evoque has LED lights and the caravan has normal filament bulbs, no issues at all, I don’t know for sure but I think it can sometimes cause a bigger issue if your car has normal bulbs and the caravan has led’s
I don't think you will have issues with a set up that way round, ie., conventional bulbs on the caravan, and LEDs on the car.
In the opposite scenario, LEDs on the caravan after a lamp set-up, you can have problems with older car electrics. Because LEDs draw much less current than bulbs, so it can affect relay operation is some car's towing electrics.
Dave.
------------- Give a man a fish and he will eat for a day,
Teach a man to fish and you can get rid of him for a whole weekend.