PEUGEOT 308 Handbook page 54

Ease of use and comfort
Before moving the seat backwards,
ensure that there is nothing that might
prevent the full travel of the seat.
There is a risk of trapping or pinching
passengers if present in the rear seats
or jamming the seat if large objects are
placed on the floor behind the seat.
Height
F Pull the control upwards to raise or push
it downwards to lower, as many times as
necessary to obtain the position required.
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Seat backrest angle
F Turn the knob to adjust the backrest.
Lumbar
F Turn the knob manually to obtain the
desired level of lumbar support.
Electrically adjusted
driver's seat
For safety reasons, seat adjustments
must only be made when the vehicle is
stationary.
To avoid discharging the battery, carry out
these adjustments with the engine running.
Longitudinal
F Push the control forwards or backwards to
slide the seat.
Before moving the seat backwards,
ensure that there is nothing that might
prevent the full travel of the seat.
There is a risk of trapping or pinching
passengers if present in the rear seats
or jamming the seat if large objects are
placed on the floor behind the seat.
Seat backrest angle
F Tilt the control forwards or backwards to
adjust the angle of the seat backrest.