Where is the battery located
95 buick reviera hawk 3800 supercharger on 1995 Buick Riviera

I have heard under the back seat! If so I would like to know how to remove the seat and battery replacement pictures or a video

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2 answers
Under the back seat and no nuts or bolts just have to get in front of seat and put your hands spaced out about shoulders apart at bottom of seat and give it a quick push towards back of car,& to put back on push back then down to lock seat on clips if seat lifts easy its not locked in place do it again.
I'd like to suggest that you go to your local auto parts store and buy a motor manual for your vehicle.You will find out how simple it is. This will show you how to find the bolts on the seat and anything else you may need to remove. Goodluck