Lane assistance
The function of the Lane Keeping Aid (LKA[1]) is to help the driver to reduce the risk of the car accidentally leaving its own lane on motorways and similar major routes.
Lane Keeping Aid steers the car back into its lane and/or alerts the driver with vibrations in the steering wheel.
Lane Keeping Aid is active within the speed range 65-200 km/h (40-125 mph) on roads with clearly visible side lines.
On narrow roads the function may be unavailable, in which case it goes into standby mode. The function becomes available again when the road is wide enough.



- Assist[3] activated: When the car is approaching a lane line, LKA will actively steer the car back into its lane by applying a slight torque to the steering wheel.
- Warning[3] activated: If the car is about to cross a lane line, the driver is warned by means of vibrations in the steering wheel.
When a direction indicator is switched on, there are no steering corrections or alerts from Lane assistance.Note
Warning
- The Lane Keeping Aid function is supplementary driver support intended to improve driving safety – it cannot handle all situations in all traffic, weather and road conditions.
- The function is not a substitute for the driver's attention and judgement. The driver is always responsible for ensuring the car is driven in a safe manner, at the appropriate speed, with an appropriate distance to other vehicles, and in accordance with current traffic rules and regulations.
Lane assistance does not intervene

In some situations, lane assistance allows lane lines to be crossed without intervening with either steering assistance or a warning - e.g. when using the direction indicators or cutting bends.