Cross Traffic Alert

Cross Traffic Alert*

Updated 7/23/2018

CTA Cross Traffic Alert with auto-brake is a driver support that supplements BLISBlind Spot Information and is designed to help the driver detect traffic crossing behind the car when it is reversing. The auto-brake subfunction can stop the car in the event of a risk of collision with an unobserved vehicle.

P5-1507-CrossTrafficAlert Princip

Principle of CTA.

CTA supplements BLIS by detecting the approach of crossing traffic during reversing, such as when reversing out of a parking space.

CTA is primarily designed to detect vehicles. In favourable conditions it may also be able to detect smaller objects, such as cyclists and pedestrians.

CTA is only active if the car rolls backwards or if reverse gear has been selected.

If CTA senses that something is approaching from the side, this is also indicated with:

  • an acoustic signal - the sound is heard in the left-hand or right-hand speaker according to the direction from which the object approaches.
  • an illuminated icon in the PAS

    Park Assist System: Parking assistance system with reversing sensors

    graphic on the screen.
  • an icon on the Park assist camera top view.
P5-1646-CrossTrafficAlert Screen symbol

Illuminated icon for CTA in the PAS

Park Assist System: Parking assistance system with reversing sensors

graphic on the screenNOTE: The illustration is schematic - details may vary depending on car model..

  • If the driver does not observe the warning from CTA and a collision is unavoidable, the auto-brake function takes effect to stop the car, after which the driver display shows an explanatory text message on why the car was braked.

Warning

  • The Cross Traffic Alert function is supplementary driver support intended to facilitate driving and make it safer – it cannot handle all situations in all traffic, weather and road conditions.
  • The auto-brake subfunction can only detect and brake for other vehicles that are moving - not for stationary obstacles, a cyclist or a pedestrian, for example.
  • The responsibility for reversing the car safely and using good judgement always rests with the driver.
  • Cross Traffic Alert 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.

Did this help?