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Revised Distance Sensing Cruise Control Alignment Procedure - keywords adaptive adjust aim align program radar sensing

Subject:Revised Distance Sensing Cruise Control Alignment Procedure

Models: 2006 Cadillac XLR



The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:

A revised Distance Sensing Cruise Control (DSCC) alignment procedure has been developed for the 2006 Cadillac XLR. The procedures below will help guide through this procedure.

Recommendation/Instructions:

  1. Place a bubble level against the front of the radar. Adjust the radar brackets vertical position until the radar is level.
  2. For radar bracket horizontal adjustment, measure the back of the horizontal adjuster. Adjust the horizontal until 1/4 inch of the adjuster is protruding out behind the radar. This method should work assuming that the bracket and frame have not been damaged in a collision.
  3. Any time the radar bracket is adjusted or disturbed, it will be necessary to perform the automatic alignment process by setting the alignment back to the factory default using the Tech 2 "Factory Reset" Procedure. Tech 2 path is... Body and Accessories/Cruise Control/Special Functions/Distance Sensing Cruise Control/Factory Reset.
  4. Drive the vehicle above 35 MPH so that the automatic alignment process can operate. The process requires the radar to observe stationary targets along the edge of the road (mail boxes, parked cars, poles, signs, etc.) Do not follow other vehicles too closely, since this obscures the view for the radar.
  5. Use a Tech 2 to monitor the "Auto Alignment Learn Status". Continue driving until the Tech 2 indicates "Aligned". Typically, it will require less than 10 miles of driving. If the resulting "Alignment Error" is within -1.5 and 1.5 degrees the alignment is within specification, otherwise, proceed to step #6. Tech 2 path is... Body and Accessories/Cruise Control/Data Display/Distance Sensing Cruise Control/DSCC Data. "Alignment Error" and "Auto Alignment Learn Status" can be viewed in this data list.
  6. Adjust the horizontal adjuster according to the "alignment error" chart provided in the service manual. Then, repeat the steps #3, #4 and #5.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.