Automatic braking with Adaptive Cruise Control

The Adaptive cruise control (ACC1) has a special brake function in slow traffic and while stationary.

Braking function in slow traffic and at a standstill

In slow-moving, stop-and-go traffic or when stopped at a traffic light, driving will resume automatically if the vehicle is stopped for less than approx. 3 seconds. If it takes more than 3 seconds for the vehicle ahead to begin moving again, Adaptive Cruise Control will go into standby mode and the Auto-hold brake function will activate.

Adaptive Cruise Control can be reactivated in one of the following ways:
  • Pressing the P5-1507-Symbol 5x3,5-CC rattknapp Återuppta hastighet button on the steering wheel keypad.
  • Pressing the accelerator pedal.
Adaptive Cruise Control will resume following the vehicle ahead if it begins to move within approx. 6 seconds.

 Note

ACC can keep the vehicle stationary for no more than 5 minutes – after that time the parking brake is applied and Adaptive Cruise Control is deactivated.

The parking brake must be released before Adaptive Cruise Control can be reactivated.

Deactivation of the Auto-hold brake function

In certain situations, Auto-hold will be deactivated when the vehicle is at a standstill and Adaptive Cruise Control will go into standby mode. This means that the brakes will be released and the vehicle could begin to roll. The driver must actively apply the brakes to keep the vehicle stationary.

This can occur if:
  • the driver depresses the brake pedal
  • the parking brake is applied
  • the gear selector is moved to the P, N or R positions
  • the driver puts Adaptive Cruise Control in standby mode.

Auto Activate Parking Brake

In certain situations, the parking brake will be applied to keep the vehicle at a standstill.

This occurs if Adaptive Cruise Control is keeping the vehicle stationary using the brakes and:
  • the driver opens the door or unbuckles his/her seat belt
  • ACC has kept the vehicle at a standstill for more than approx. 5 minutes
  • the brakes overheat
  • the driver switches off the engine manually.
  1. 1 Adaptive Cruise Control

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