DS 3: Starting/Switching off the engine / Switching on the ignition without starting the engine. Key not
detected. Emergency switch-off
DS 3 2016-2026 Owners Manual
Switching on the ignition without starting the engine
With the electronic key in the passenger
compartment, pressing the "START/STOP" button,
without depressing any of the pedals, allows the
ignition to be switched on without starting the
engine.
- Press this button again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted to the steering column,
to enable the engine to be started if the system
fails to detect the key in the recognition zone, or if
the battery in the electronic key is flat.

- Place and hold the remote control against the
reader.
- With a manual gearbox, place the gear lever in
neutral, then fully depress the clutch pedal.
- With an automatic gearbox or a drive selector,
select mode P, then depress the brake pedal.
- Press the "START/STOP" button.
The engine starts.
Back-up switch-off

If the electronic key is not detected or is no longer
in the recognition zone, a message appears in the
instrument panel when closing a door or trying to
switch off the engine.
- To confirm the instruction to switch off the
engine, press the "START/STOP" button for
approximately 5 seconds.
In the event of a fault with the electronic key,
contact a dealer or a qualified workshop.
Emergency switch-off
In case of emergency only, the engine can be
switched off without conditions (even when
driving).
- Press the "START/STOP" button for about
5 seconds.
In this case, the steering column locks as soon as
the vehicle stops.
Starting
The drive selector must be in mode P.
Fully depress the brake pedal and briefly press
the "START/STOP" button.
Keep your foot on the brake pedal until the
READY indicator lamp comes on and an audible
signal is emitted, indicating that the vehicle is
ready to drive...
In automatic mode, this system applies the
parking brake when the engine is switched off
and releases it when the vehicle moves off.
At any time, with the engine running:
To apply the parking brake, briefly pull the
control...
Other information:
Forward-facing or rearward-facing
Move the vehicle's front seat forward and
straighten the backrest so that the legs of the
child in the forward-facing or rearward-facing
child seat itself do not touch the vehicle's front
seat.
Check that the backrest of the forward-facing
child seat is as close as possible to the backrest
of the vehicle's rear seat, and ideally in contact
with i..
For
more information, refer to the General
recommendations on the use of driving
and manoeuvring aids.
This system displays the maximum speed
authorised locally on the instrument panel, using:
Speed limit signs detected by the camera.
Speed limit information from the navigation
system’s mapping.
Signs indicating a shared traffic zone detected
by the camera.
Some suppleme..