NHTSA Complaint #11643046 — 2016 BUICK ENCLAVE

During a rainstorm water is entering the fuse box under the glove box and the carpet and padding underneath is soaking wet on the right front floor.When the fuse case was opened water started to drip out.The engine continues to run with the key off and the only way to stop it is to pull the ignition fuse under the hood. Unfortunately the battery died by morning and I could not get it charged for a few days. Now I have learned how to take the battery cover off which is located in the back of the car and remove the plastic covers under the mat so I can disconnect the battery so it doesn't run down. The rear wiper will not shut off now since this started.I am a 75 yr old widow and wonder how this problem has not been on a recall. It causes a very dangerous situation.I will try to see if I can get it into a Buick dealer this week and pray God it doesn't cost me an arm and leg to repair it. There are service bulletins on this problem and seems to be quite freqent yet I have not received any notifications from you.If this happens at night in a parking lot what am I to do? Can the car catch on fire by not shutting off?