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Installation Procedure

Fig 1: Preparing Interior Glass Using Isopropyl Alcohol Pad
G01813263Courtesy of GENERAL MOTORS CORP.
  1. Using a grease pencil, mark the antenna location on the front windshield 2 mm (0.079 in) down from the black-out area and 30 mm (1.18 in) from the side black-out area.
  2. Prepare the interior glass using an isopropyl alcohol pad and a clean lint-free cloth.
  3. Remove the backing paper from the antenna housing and begin removing the backing on the metallic strip.
  4. Install the GPS antenna onto the windshield at the marked location.
  5. Pull down gently on the headliner for best adhesion of the GPS antenna and grounding tab.
  6. Remove the backing from the metallic strip and adhere the GPS antenna to the roof.
  7. Connect the GPS antenna coaxial cable to the VIU.
  8. Route the GPS antenna coaxial cable through the IP and up the left front A-pillar.
  9. Tape the GPS antenna coaxial cable to the OnStar® harness.
  10. Install the IP trim pad. Refer to TRIM PAD REPLACEMENT - IP UPPER .
  11. Install the garnish molding to the left front windshield. Refer to GARNISH MOLDING REPLACEMENT - WINDSHIELD PILL .
  12. Install the left front sunshade. Refer to SUNSHADE REPLACEMENT .
    Fig 2: Installing GPS Antenna Onto Windshield
    G01813264Courtesy of GENERAL MOTORS CORP.
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