It might be normal for your car to do that.
Many many years ago, when I first travelled to the USA, the hire car came with Q&A sheet.
I recall one of the questions stated something to the effect:-
Q: I have noticed a small amount of water dripping from the underside of the car, what should I do?
A: it is normal for cars fitted with aircon to drip water in this way when the aircon is switched on.
No doubt hire car company’s in the USA were getting calls from concerned motorist who were not used to aircon on cars in their home country.



