BMW 3 Owners & Service Manuals

BMW 3: Warning function

Light in the exterior mirror

Safety

Acute warning

If there is a risk of collision, the light in the exterior mirror flashes and the steering wheel vibrates.

A Check Control message is displayed at the same time.

If necessary, an active steering intervention then takes place to prevent collisions and maintain the vehicle within its own lane.

The steering intervention can be noticed on the steering wheel and can be manually overridden at any time.

System limits

Safety information

Warning The system is designed to operate in certain conditions and circumstances. Due to conditions or other factors, the system may not respond.

There may be a risk of accident or risk of damage to property. Actively intervene as warranted. Refer to the information in this Owner's Manual regarding the scope of the system's operation and limitations.

Functional limitations

The system may not be fully functional in the following situations:

  • When a vehicle is approaching at a speed much faster than your own.
  • In heavy fog, wet conditions, or snowfall.
  • In tight curves or on narrow lanes.
  • If the bumper is dirty, iced up, or covered, for instance by stickers.
  • After improperly performed work on the vehicle paint.
  • If cargo protrudes.
  • In the event of missing, worn, poorly visible, merging, diverging, or multiple lane markings such as in construction areas.
  • When lane markings are covered in snow, ice, dirt or water.
  • When lane markings are covered by objects.
  • When driving very close to the vehicle in front of you.
  • If there are constant blinding effects because of oncoming light, for instance from the sun low in the sky.
  • If the field of view of the camera or the windshield is dirty or covered in the area of the interior mirror.
  • If the camera has overheated and been temporarily switched off due to excessively high temperatures.
  • Up to 10 seconds after the start of the engine via the Start/Stop button.
  • During calibration of the camera immediately after vehicle delivery.

Attaching any objects such as stickers or film in the beam area of the radar sensors will also impact the function of the radar sensors and may even cause them to fail.

A Check Control message is displayed when the system is not fully functional.

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