The trunk seal is leaking water into the truck every time it rains.Chevrolet dealerships do guarantied repair work on all Saturns.

Means you have a water leak

Your trunk gasket or rear window seal leak .

we had this in our ford. the seal on your trunk is either cracked or worn in a area.

because its a Saturn

I guess the temperature is below freezing.

Hi so how cold is it where you are that might be why you have ice.

Must have a water leak that froze...