Adaptive Speed Control

WARNING: The adaptive speed control system is not an impact warning or avoidance system. At all times the driver must be prepared to intervene to control the vehicle speed.

Adaptive speed control operation is similar to the standard speed control system for engaging, suspending and resuming speed control.

The main differences between the 2 systems:

The adaptive speed control remains engaged at a vehicle speed of less than 32 km/h (20 mph).
The adaptive speed control uses the brakes to slow the vehicle, to a stop if necessary.

The adaptive speed control can be suspended by operating the 'CANCEL' switch, or the brake pedal. It can be re-engaged by operating the 'RESUME' switch when the vehicle speed is greater than 10 km/h (6 mph).

The adaptive speed control system utilizes the following main components:

Adaptive Speed Control Module (ASCM).
Right steering wheel switchpack.
Powertrain Control Module (PCM)
Fuel injectors.
Anti-lock Brake System (ABS) control module and Hydraulic Control Unit (HCU).
Adaptive speed control warning indicator - Displayed in the Instrument Cluster (IC).

The adaptive speed control system uses a forward looking radar sensor, integrated into the ASCM. The radar sensor scans the road ahead and looking for objects that are moving at a different speed to the sensing vehicle speed. When a target is identified, the adaptive speed control system will monitor the time gap between the sensing vehicle and the target vehicle. When the gap is less than the set driver selected level, the adaptive speed control system will intervene until the correct time gap is attained. The adaptive speed control system slows the vehicle by reducing the throttle and/or applying the brakes. The driver can chose between 4 time gap settings, 0.8, 1.3, 1.8 and 2.3 seconds.

Adaptive speed control is active when the vehicle is moving. Adaptive speed control only functions when a set speed is entered via the operation of the 'SET +' switch.

The adaptive speed control system only intervenes with the set speed:

If the adaptive speed control system detects a slower target vehicle in the sensing vehicle's path
If the calculated time gap will be breached.

The PCM and fuel injection control are unchanged from those used for the standard speed control system.

With the ignition ON (Power Mode 6), the ASCM is powered up but no radar transmissions are emitted until the vehicle is in motion.