I have water in backseat floorboard. Am unsure why or how to fix it. on 2001 Chevrolet Camaro

The backseat has water after rain or washing. How can I repair it and why does it happen? I have read about clogged drains but I have no idea where the drains are located or how to clear them or if this is the problem. Thank you

Asked by for the 2001 Chevrolet Camaro
1 answer
check seals around windows or bad weather stripping around trunk or doors