battery location Citroen DS3 DAG 2009.5 1.G Owner's Manual

Following disconnection of the vehicle battery,
replacement of the remote control battery or in the event of a remote control malfunction, you can no longer unlock, lock or locate your vehicle.  First of all, use the key in the lock to unlock or lock your vehicle.  Then, reinitialise the remote control. If the problem persists, contact a CITROËN dealer as soon as possible.
Remote control problem
Reinitialisation
 Switch off the ignition.  Turn the key to position 2 (Ignition) .  Press the closed padlock immediately for a few seconds.  Switch off the ignition and remove the key from the ignition switch. The remote control is fully operational again.
Changing the battery
Battery ref.: CR1620/3 volts. This replacement battery is available from CITROËN dealers.
 Maintain pressure on lug A and remove the chrome finisher by sliding it off at 45°.  Unclip the casing by inser ting a coin at the
notch and rotating.  Slide the flat battery out of its location.  Slide the new battery into its location obser ving the original direction.  Clip the casing in place, then the chrome finisher.  Reinitialise the remote control.
If the battery is flat, you are informed by lighting of this warning lamp in the instrument panel, an audible signal and a message on the multifunction screen.
 Unfold the key.  Release the chrome finisher by pressing on
lug A .