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Home >> Chevrolet >> 2015 >> Impala Limited LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 114 (Object Detection System And Pedestrian Protection System) >> Repair Instructions >> Forward Range Radar Module Alignment
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Forward Range Radar Module Alignment

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  1. Inspect the forward range radar module for damage. Refer to Forward Range Radar Module Inspection .
    CAUTION: Always use care when handling the forward range radar module and bracket. Improper handling can cause damage to the module or bracket and affect the functionality of the system.
  2. The alignment of the forward range radar module is performed under the following vehicle conditions:
    • With an empty vehicle:
      • There shall not be any person in the vehicle
      • Specific equipment can remain in the vehicle
      • Luggage must not exceed 5 kg (11 lb)
    • The vehicle must stand on a flat surface. The level of the ground must not vary by more than +/-7 mm/m. This corresponds to 0.4 degrees, using a water bubble level.
    • Vehicle tires must have specified air pressure.
  3. Use a water bubble level (2) to align the forward range radar module vertically as shown in the graphic.
    Fig 1: Bubble Level
    GM3330012Courtesy of GENERAL MOTORS COMPANY
    NOTE: Do not press the water bubble level too tight against the face of the module.
  4. Turn the screw (1) until the water bubble level has a value of 90 degrees.
    NOTE: The water bubble level must have an accuracy of +/-0.5 degrees (9 mm/m).
    NOTE: The vertical position of forward range radar module is 90 degrees.