DS 3: Lane positioning assist / Operating limits. Malfunction

Operating limits

The system may issue an alert when the vehicle is travelling on a long, straight road with smooth road surface even if the driver thinks they are holding the steering wheel correctly.

The system may not operate or may produce unsuitable corrections to the steering in the following situations:

• Poor visibility (insufficient road lighting, snowfall, rain, fog).
• Dazzle (headlamps of an oncoming vehicle, low sun, reflections on a wet road surface, leaving a tunnel, alternating light and shade).
• Windscreen area in front of the camera dirty, misted up, frost-covered, snow-covered, damaged or covered by a sticker.
• Lane markings eroded, partially hidden (snow, mud) or multiple (roadworks, surface joints).
• Travelling in a tight bend.
• Winding roads.
• Presence of a tarmac joint on the road.

Risk of undesirable operation

The system should be deactivated in the following situations:

• Driving with a "space-saver" type spare wheel.
• When towing or with a bicycle carrier attached to a towing device, particularly when a trailer is not connected or the trailer is not an approved type.
• Adverse weather conditions.
• Driving on slippery road surfaces (risk of aquaplaning, snow, ice).
• In roadworks or toll booth areas.
• Driving on racing circuits.
• Driving on a rolling road.

Malfunction

In the event of a malfunction, the Service warning lamp comes on and this (orange) symbol appears on the instrument panel, accompanied by the display of a message and an audible signal.

Have it checked by a dealer or a qualified workshop.