You should be able to download the instruction for this model from this site Instruction Manuals
You will have to remove the buckle loop holding the harness at the back of the seat and release the straps. Once you insert these through the seat cover and back into the slot on the seat back you can lock the harness by re-inserting he buckle loops.
Answers & Comments
You should be able to download the instruction for this model from this site
Instruction Manuals
You will have to remove the buckle loop holding the harness at the back of the seat and release the straps. Once you insert these through the seat cover and back into the slot on the seat back you can lock the harness by re-inserting he buckle loops.