just take a pry bar and put it under the edge of seat and pry upward on it.(look under the edge of the seat to find the things that hold it in)
I have a 1989 civic dx: door 6.5", rear deck, 6.5"
You have to remove the rear seat and rear side pannels first, then you can pull off the rear deck.
The rear bumper on a Honda Civic is held on using several mounting screws. After remove each screw the bumper will be held on with mounting clips. The bumper can be gently pulled off.
The 2013 Honda Civic has 34.3 in. of rear head room.
The 2004 Honda Civic has 52 in. of rear shoulder room.
The 2014 Honda Civic has 52.2 in. of rear shoulder room.
The 2010 Honda Civic has 52.1 in. of rear shoulder room.
The 2001 Honda Civic has 32.8 in. of rear leg room.
The 2010 Honda Civic has 30.3 in. of rear leg room.
The 2011 Honda Civic has 35.1 in. of rear head room.
The 2003 Honda Civic has 32.8 in. of rear leg room.
The 2005 Honda Civic has 36 in. of rear leg room.