Lane keeping aid
Lane keeping aid helps prevent accidental high-speed lane departures by providing warnings and steering interventions.
When lane keeping aid is enabled, the car can alert you if you are about to drift out of your lane. It can also perform steering interventions. Lane keeping aid depends on the car's forward-facing camera to identify road markings and your position in the lane.
Lane keeping aid warnings and interventions are supplements to safe driving practices. They do not reduce or replace the need for the driver to stay attentive and focused on driving safely. Drive the car with the same attention to safety as required by a car without the ability to intervene.Warning
Main conditions for lane keeping aid
- Your speed must be in the range 60-180 km/h (40-110 mph).
- The lane markings must be clearly visible for the car's camera to see.
- The lane must be wide enough. A very narrow lane does not provide enough margin between the car and the road markings.
Important
Steering actively
Never let go of the steering wheel when driving. Do not dismiss the car's requests for you to steer actively and keep your attention on the road.
Lane keeping aid intervention types
| Steering intervention | If you drive too close to the lane markings, your car tries to steer back into the centre of the lane. Your car will let you know that steering intervention has happened via the driver display. |
|---|---|
| Lane departure warning | If you cross your lane markings, your car alerts you with steering wheel vibrations and a symbol appears in the driver display. |
Note
Indicating a turn or lane change
As long as you use the turn indicators when changing lanes, the car assumes it's an intentional manoeuvre.
Cutting a corner
Lane keeping aid may allow you to briefly cut across the line at sharp corners.
Safety interventions are always enabled
Some situations, such as when you are about to cross a solid line or if you show signs of inattentiveness, can cause a steering intervention to prevent a dangerous lane departure even if lane keeping aid is turned off in settings. Safety interventions can also happen even if not all the conditions are met, such as in speeds below 60 km/h (40 mph) or if the car leaves the roadway without crossing any lines.
Display symbols and communication
Lane keeping aid warnings and interventions are communicated in the driver display.
 | This symbol appears if you are coming too close to the lane markings. The symbol is mirrored during warnings for the left-hand side. The orange line indicates that lane keeping aid has intervened. |
 | This symbol indicates that lane keeping aid is disabled in settings or temporarily unavailable. |
When the driver display shows the surround display mode, lane keeping aid interventions are shown as animations.
Important
Using surround mode
Surround mode cannot perfectly depict what is really happening on the road around you, so do not rely on it when you are driving.
Conditions and limitations
For lane keeping aid to work, road markings must be present and visible. The car identifies them using a forward-facing camera. This form of detection requires that the camera view is unobstructed and that the conditions for visual detection are present. Read the separate section about the conditions and limitations of your car's cameras to understand how features relying on camera detection are affected.
- Lane divisions and mergers can cause temporary misidentification of the lane.
- Non-standard or unusual road marking layouts might not be identified correctly by the car. For example, road work or traffic diversions can result in conflicting or multiple sets of road markings.
- The car may be unable to detect deteriorated road markings, for example if they are worn, misshapen or discoloured.
- Other edges or lines can be misidentified as road markings, such as kerbs, road surface repair edges, barriers or well-defined shadows.
- Road markings must be sufficiently illuminated to be detected. In low-light conditions, they need to be illuminated by the car or street lights.
