Switching target vehicles with Adaptive Cruise Control

At certain speeds, models with automatic transmissions and Adaptive Cruise Control (ACC1) can switch target vehicles.

Switching target vehicles

P5-1507-ACC RadarSensorTargetChange
If the target vehicle ahead turns suddenly, there may be stationary traffic ahead.

When Adaptive Cruise Control is actively following another vehicle at speeds under 30 km/h (20 mph) and switches targets from a moving vehicle to a stationary vehicle, Adaptive Cruise Control will brake for the stationary vehicle.

 Warning

When Adaptive Cruise Control follows another vehicle at speeds over approx. 30 km/h (20 mph) and changes target vehicle – from a moving vehicle to a stationary one – Adaptive Cruise Control will ignore the stationary vehicle and instead accelerate to the stored speed.

  • The driver must then intervene and apply the brakes.

Automatic standby mode when switching targets

Adaptive Cruise Control will be disabled and go into standby mode:
  • if your vehicle's speed goes below 5 km/h (3 mph) and Adaptive Cruise Control cannot determine if the target object is a stationary vehicle or another object, e.g. a speed bump.
  • if your vehicle's speed goes under 5 km/h (3 mph) and the vehicle ahead turns so that Adaptive Cruise Control no longer has a vehicle to follow.
  1. 1 Adaptive Cruise Control