Where do you find the serial number?
Serial numbers for Pride Mobility scooters are usually located close to where the seat post mounts down to the floor, on a white sticker with a barcode. The serial number should start with the letter S and end with the number 0. It will always be on a non-removable part of the scooter, so ignore areas like the seat itself, the motors, or controllers. Anything on those parts would be for that part only, and not the whole scooter.