CITROEN Grand C4 PICASSO Owner's Handbook Manual page 100

Comfort
Folding the seats
Return the second-row continuity panels to
their initial position and lock them.
Lower the head restraints.
Correctly position the concertina board
vertically behind the seat.
Check that the seat belts for the 3
seats are correctly fixed to the loops and
are not folded.
Pull the strap G , located at the bottom of
the seat backrest. The seat unlocks.
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Next push the backrest gently forwards.
The backrest pivots, folding onto the seat
base. The seat base then folds into the
stowage area provided for that purpose.
Reposition the concertina boards over the
row
rd folded seats.
Before moving the third-row seats,
return the rigid floor plates of the
second-row seats to the upright position
and lock them.
Do not try to fold a third-row seat that
has not first had the backrest fully
locked in place.
Do not leave objects either on or
underneath the seat bases of the third-
row seats when you are folding them.
Do not leave your hand on the control G
as you fold the seats, as you risk
trapping your fingers.
Do not allow children to operate the
seats without supervision.