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Home >> Hummer >> 2008 >> H3 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 204 (Cruise Control System) >> Repair Instructions >> Distance Sensing Cruise Control Aiming >> DSCC Aiming Set Up Procedure

DSCC Aiming Set Up Procedure

WARNING: This page is about a different car, the 2008 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Prior to aiming the DSCC, the following steps must be taken:
    • Align the wheels, if necessary, before aiming the DSCC.
    • Inflate the tires to the proper pressure.
    • The vehicle must have a full tank of gas.
    • If any service has been performed on the vehicle, make sure that all of the components are back in their original place.
    • Remove any snow, ice or mud from the vehicle.
    • Stop all other work on the vehicle.
    • Do not load any cargo in the vehicle.
    • Remove the upper front bumper fascia grille. Refer to Radiator Upper Grille Replacement .
    2. Fig 1: View Of DSCC Length & Width Measurements
    GM1208713Courtesy of GENERAL MOTORS CORP.
  2. The area needed for aiming of the distance sensing cruise control (DSCC) will consist of a vertical wall and a level surface 8 m (26 ft 2 in) in length (a), 3 m (9 ft 9 in) in width (b), and 2 m (6 ft 6 in) in height (c).
    3. Fig 2: View Of Vertical Reference Line & Mark On Floor
    GM1208721Courtesy of GENERAL MOTORS CORP.
  3. Place the vehicle so the DSCC module is approximately 6 m (19 ft 7 in) from the vertical wall (a), rock the vehicle to stabilize the suspension, and center the steering wheel.
    4. Fig 3: Marking 2 Points (A & B) On Left Side Of Rear Window Glass
    GM1836099Courtesy of GENERAL MOTORS CORP.
  4. Mark two points (a, b) on the left side of the rear window glass from the roof sheet metal using an erasable marker or chalk. Measure the same distances on the opposite side from the roof sheet metal and draw two lines across the rear window glass connecting points a and b.
  5. Measure the center points of lines a and b and draw a new, dashed line vertically through the center of the rear glass (c, d).
  6. Repeat this procedure on the front glass to find the center point of the windshield.
  7. Hold BO-047670  steady at the rear glass and turn the tool on. Shine the laser beam through the vertical lines drawn on the front and rear glass to the wall.
    8. IMPORTANT: Use a long carpenter's level to draw a straight line from this point to the floor.
  8. Have a partner mark the wall where the laser beam appears. This is the true center line of the vehicle.
    9. IMPORTANT: Do not disturb the vehicle in any way after this point.
  9. Using the floor as a reference, measure the height from the floor to the center point of the radar face.
    10. IMPORTANT: The cross hairs will be the point the radar unit is aimed to.
  10. On the vertical wall measure the same distance measured in step 9 from the floor up the line created in step 8 and make cross hairs.
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