NHTSA Complaint #11511354 — 2013 TOYOTA AVALON

I had a smell of old water in my vehicle while trying to figure out from where it was coming from .I noticed in left and right rear ceiling quarter panels both wet and had water damage. Then I opened my trunk and it also had the same stale water smell. Under the spare tire on the very bottom of trunk there was at least 2 gallons of stale water. I have not had this looked at by the dealer or a mechanic. Do to it being a hybrid im very worried do to electrical components near the rear back seats where leak stains and water is . Also in my trunk is a hybrid battery next to were water was filling up. There's no damage to anything on the vehicle inside or out the vehicle has not been in no accidents. I'm available upon request for inspections. I have provided pictures of damage on rear ceiling panels . Thank you and I look forward to hearing from someone as soon as possible