CITROEN DS4 Owner's Handbook Manual page 211

Reverse
To engage reverse gear R , the vehicle must be
immobilised with your foot on the brake pedal.
 Select position R .
Engagement of reverse gear is
accompanied by an audible signal.
At low high speed, if reverse gear is requested,
the N indicator flashes and the gearbox goes
into neutral automatically. To engage reverse,
put the gear lever in position N , then position R .
Stopping the vehicle
Before switching off the engine, you can:
- move to position N to engage neutral,
or
- leave the gear engaged; in this case, it will
not be possible to move the vehicle.
In both cases, you must apply the parking
brake to immobilise the vehicle.
When immobilising the vehicle, with
the engine running, you must place the
gear lever in neutral N .
Before carrying out any work in the
engine compartment, ensure that the
gear lever is in neutral N and that the
parking brake is applied.
Whatever the circumstances, you must
manually apply the parking brake when
parking, unless the parking brake is
programmed in automatic mode.
Operating fault
With the ignition on, the flashing of AUTO ,
accompanied by an audible signal and a
message in the screen, indicates a malfunction
of the gearbox.
Have it checked by a CITROËN dealer or a
qualified workshop.
209
Driving