CITROEN Grand C4 PICASSO Owner's Handbook Manual page 146

Driving
Special cases
In some situations, you may need to operate
the parking brake manually.
Immobilisation of the vehicle
with the engine running
To immobilise the vehicle with the engine
running, briefly pull the control lever.
Application of of the parking brake
is confirmed by illumination of the
brake indicator lamp and the P
indicator lamp in the control lever,
accompanied by the display of the
message "Parking brake applied".
144
Parking the vehicle with the
brake released
In very cold conditions, it is
recommended that the parking brake
not be applied (risk of freezing).
To immobilise your vehicle, engage a
gear or fit a chock to one of the wheels.
Immobilisation of the vehicle with the
parking brake released
Switch off the engine.
Illumination of the warning lamps in the
instrument panel and control lever confirm
application of the parking brake,
Switch on the ignition again, without
starting the engine.
Release the parking brake manually by
pushing the control lever while keeping
your foot on the brake.
The complete release of the parking
brake is confirmed by the brake
indicator lamp and the P indicator
lamp in the control lever going off,
accompanied by the display of the
message "Parking brake released".
Switch off the ignition.