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Home >> Cadillac >> 2019 >> CTS Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> Driver Assistance Systems >> Repair Instructions >> Radar Sensor Module - Long Range Learn >> Calibration Procedure
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Calibration Procedure

  1. Verify no other DTCs, except for DTC B101E 4B, are set.
    • Go to next step: If no other DTCs are set 
  2. Prior to driving the vehicle make sure the surface in front of the B233B Radar Sensor Module - Long Range is clean. Also, verify the mounting area is not damaged and allows the B233B Radar Sensor Module - Long Range to face the intended direction.
  3. Prepare the scan tool to be mobile for Long Range Radar Calibration driving phase. The scan tool needs to stay connected during the driving phase of the calibration.
  4. Engine running.
    5. NOTE:

    Once calibration has begun, do not back out of screen or press any other buttons on the scan tool until the calibration is complete.

  5. Select Long Range Radar Sensor Module Learn on the scan tool and follow any on-screen instructions. The driver information center will display the SERVICE DRIVER ASSIST message during calibration.
  6. Drive the vehicle within the following conditions for 10 - 30 minutes or until calibration is complete. The SERVICE DRIVER ASSIST message will turn off when calibration is complete.
    • Drive at speeds greater than 56 kph (35 mph)
    • Minimize tight curves
    • Avoid extreme acceleration or deceleration
    • Follow one or multiple vehicles. (typical vehicle traffic is sufficient, but vehicles 30m - 50m (100 - 165ft) away are most effective at decreasing the calibration time)
    • Drive in an environment that has stationary objects on the side of the road (street signs, guard rails, mail boxes, fences, etc)
  7. Verify proper calibration by observing that the SERVICE DRIVER ASSIST message turns off within 10 - 30 minutes of normal driving.
    • If the SERVICE DRIVER ASSIST message fails to turn off 
    1. Verify DTC B390C 66 is not set
      • Go to next step: If the DTC is not set
    2. Refer to If Slow to Calibrate below and repeat the calibration procedure following recommended operating conditions.
    • Go to next step: If the SERVICE DRIVER ASSIST message turns off 
  8. Drive at speeds greater than 40 kph (25 mph) and verify engagement of adaptive cruise control.
    • If adaptive cruise control will not engage 

      Check vehicle for DTCs and correct as required.

    • Go to next step: If adaptive cruise control engages 
  9. All OK.
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