Cross Traffic Alert*1 limitations

The Cross Traffic Alert (CTA) function with auto brake may have limited functionality in certain situations. Auto-brake is active at speeds under 15 km/h (9.3 mph).


The auto-brake sub-function can only detect and apply the brakes for other moving vehicles – not for e.g. stationary obstacles, cyclists or pedestrians.

CTA has certain limitations – The CTA sensors, for example, cannot "see" through other parked vehicles or objects blocking the vehicle.

Below are a few examples of situations in which CTA's field of vision may be initially limited and approaching vehicles may therefore not be detected until they are very close to your vehicle:

P5-1507-CrossTrafficAlert Princip-Exception1
The vehicle is parked very far into a parking space.
P5-1507-CrossTrafficAlert Princip-Exception2
In a diagonal parking space, CTA may be completely "blind" on one side of your vehicle.
  1. P5-Icon red circle 1CTA's blind zone.
  2. P5-Icon red circle 2CTA's field of vision.

However, as you back your vehicle slowly out of a parking space, CTA's field of vision changes in relation to the obstructing vehicle/object and its blind zone is reduced.

Examples of further limitations

  • The auto brake subfunction only detects vehicles in motion and may therefore not "see" and brake for e.g. stationary obstacles, a cyclists or a pedestrian.
  • Dirt, ice and snow covering the sensors may reduce functionality and prevent the system from providing warnings.
  • CTA is automatically deactivated if a trailer, bicycle holder or similar is connected to the vehicle's electrical system.
  • For CTA to function effectively, bicycle holders, luggage racks or similar should not be mounted on the vehicle's towbar.


The function uses the vehicle's radar sensors, which have certain general limitations.
  1. * Option/accessory.
  2. 1 Warning for crossing traffic when the vehicle is backing up.