Just got the vehicle back today for above. When I drove it home, water ran out from underneath the glove box. I had a puddle on the floormat when got home. Only about a 5 minute drive.
water leaking under gove box after a/c blower motor repair on 2008 Buick Enclave
If it is truly water and not your engines coolant, then I suspect that the evaporator case drain tube is clogged with something. With the A/C on, condesation will accumulate and overflow into your car.
I know the over flow tube exits from the bottom of the car, but where exactly is it.