Component Descriptions:

Active Safety Control Module 

The active safety control module analyzes data from various modules, sensors, and switches to provide enhanced safety features. In addition to providing alerts, the active safety control module will provide driver assistance through integrated brake assist, automatic collision preparation, rear emergency braking, and adaptive cruise control. Inputs and outputs can either be connected directly to the active safety control module or communicate though serial data. The active safety control module communicates on a dedicated object bus to all four radar sensor modules and the frontview camera module. A fault on the object bus may result in multiple DTCs since the active safety control module may not be able to communicate with some or all modules on the bus. See Data Link Communications Description and Operation for more serial data information.

Forward collision alert, lane departure warning, and park assist alerts can be user selected to either a haptic signal utilizing the driver's haptic signal motor seat or using beeps through the audio system. This setting can be found in the vehicle personalization menus. See the owner's manual for more detailed information on vehicle personalization. Refer to Object Detection Description and Operation (with Active Safety System, UGN, N America) Object Detection Description and Operation (with Front and Rear Park Assist, UD5) Object Detection Description and Operation (with Rear Park Assist, UD7) Object Detection Description and Operation (with Side Blind Zone Alert, UFT, N America) Object Detection Description and Operation (with Rear Cross Traffic Alert, UFG, N America) Object Detection Description and Operation (with Lane Departure Warning, UFL) Object Detection Description and Operation (with Forward Collision Alert, UEU) Object Detection Description and Operation (with Haptic Signal Motor Seat) Object Detection Description and Operation (with Adaptive Cruise Control, KSG, N America)  for more information on haptic signal motor seats.

If there is a DTC set in any of the modules that the active safety control module uses as inputs, it will send a "Service Driver Assist" to the instrument cluster to alert the driver of a problem with the system. No other specific details are given unless the driver attempts to activate a specific system. For example if the driver attempts to turn on lane departure warning, the instrument cluster will display "Lane Departure Unavailable" and the indictor will flash and then go out. A scan tool must be used to read the DTCs that are causing the malfunction to help find the problem. Some of the inputs to the active safety control module can affect forward facing features, rear facing features, or all features. Systems to check to determine which area to focus are rear park assist for rear features, and lane departure warning and adaptive cruise control for front features. If none of the active safety system features are operative, there may be an issue with another module on the vehicle not providing the proper data to the active safety control module. If all active safety control module features are inoperative, check the Adaptive Cruise Control Inhibit History and Disengage History scan tool data for the reason for the malfunction. Definitions of parameters and suggestions on what to look for can be found in Active Safety Control Module Scan Tool Information . Any item with a "Yes" was the reason why the adaptive cruise control system was inoperative at that time. In some cases verifying the module is the correct part number, has the latest version of software is necessary, and is calibrated properly.

• Active Safety Control Module Inputs:
  • EBCM
  • Forward Collision Alert Switch
  • Front and Rear Park Assist Module
  • Frontview Camera Module
  • Lane Departure Warning Switch
  • Multi-axis Acceleration Sensor
  • Park Assist Switch
  • Radar Sensor Module - Long Range
  • Radar Sensor Module - Short Range Left Front
  • Radar Sensor Module - Short Range Right Front
  • Radar Sensor Module - Short Range Rear
  • Steering Wheel Angle Sensor
  • Wheel Speed Sensors
• Active Safety Control Module Outputs:
  • BCM
  • EBCM
  • ECM
  • Instrument Cluster (for alerts and heads up display if equipped)
  • Lane Departure Warning Switch Indicator
  • Memory Seat Module (for haptic seat alerts)
  • ONSTAR
  • Park Assist Switch Indicator
  • Radio (for audio alerts)
  • TCM

Forward Collision Alert Switch 

The forward collision alert system can be adjusted to set the range of the warning by pressing the forward collision alert switch. The forward collision alert can be set to Far, Medium, Near, or Off. See owners manual for exact location of the forward collision alert switch. The forward collision alert switch is hard-wired to the body control module and is communicated to the active safety control module through serial data.

Front and Rear Park Assist Module 

The front and rear park assist module uses ultrasonic object sensors located in the front and rear bumper fascia to provide distance measurements to nearby objects. The front and rear park assist module sends rear object data to the active safety control module on the Low Speed GMLAN.

Frontview Camera Module 

The frontview camera module is located behind the windshield, looking out at the road ahead and detects lane markings and vehicles directly ahead, within a distance of approximately 60 meters (197 ft). The frontview camera module is used for lane departure warning and forward collision alert systems. The frontview camera module communicates on the object bus to the active safety control module.

Using information from the frontview camera module, the active safety control module will alert the driver to a vehicle ahead and provide forward collision alert and lane departure warnings. The alerts and warnings can be user-selected to be audible through the audio system or haptic using the active safety seat.

Lane Departure Warning Switch 

The lane departure warning feature can be activated or deactivated by pressing the lane departure warning switch. See owners manual for exact location of the lane departure warning switch. The lane departure warning switch is hard-wired to the active safety control module. The switch contains a LED that is controlled by the active safety control module to indicate if lane departure warning feature is enabled.

Parking Assist Switch 

Parking assist can be activated or deactivated by pressing the parking assist switch. See owners manual for exact location of the park assist switch. The parking assist switch is hard-wired to the active safety control module. The switch contains a LED that is controlled by the active safety control module to indicate if the parking assist feature is enabled.

Radar Sensor Module - Long Range 

The radar sensor module - long range is located behind the front grille emblem and is used in the 30-200 meters (98-656 ft) range. The radar sensor module - long range communicates on the object bus to the active safety control module. In addition to the wiring harness ground, the module is grounded through the mounting bracket.

Radar Sensor Module - Short Range Left Front 

The radar sensor module - short range left front is located behind the front bumper fascia and detects objects out to approximately 30 meters (98 ft). The radar sensor module - short range left front communicates on the object bus to the active safety control module.

Radar Sensor Module - Short Range Right Front 

The radar sensor module - short range right front is located behind the front bumper fascia and detects objects out to approximately 30 meters (98 ft). The radar sensor module - short range right front communicates on the object bus to the active safety control module.

Radar Sensor Module - Short Range Rear 

The radar sensor module - short range rear is located behind the rear bumper fascia and detects objects out to approximately 30 meters (98 ft). The radar sensor module - short range rear communicates on the object bus to the active safety control module. The radar sensor module - short range rear output data, along with the rear park assist output data, is used for rear emergency automatic braking.