How many trailers may a passenger vehicle be coupled with at the maximum?

A passenger vehicle is typically designed to tow only one trailer at a time. This regulation is based on safety and performance considerations, as towing multiple trailers with a passenger vehicle can significantly impair handling, increase the risk of accidents, and exceed the vehicle's towing capacity.

While heavier vehicles or trucks may be equipped or allowed to tow multiple trailers, passenger vehicles are not engineered for that level of load and stress. This rule is intended to promote safe driving practices and ensure that vehicles can be controlled effectively on the road. Thus, the maximum number of trailers a passenger vehicle may be coupled with is indeed one.