GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 25070 Heat Gun

Removal Procedure

Important: A GM service kit is included with a new rain sensor module.


    Object Number: 259368  Size: SH
  1. Use the tape (1) in order to mark the rain sensor module (2) location on the outside of the windshield.

  2. Object Number: 309346  Size: SH
  3. Disconnect the connector (1) from the rain sensor module (2).

  4. Object Number: 259368  Size: SH

    Notice: Use only enough heat to melt the adhesive. Use of excessive heat may damage the sensor module or the windshield.

  5. Apply heat to the sensor (2) area of the windshield. Use a J 25070 or equivalent heat gun with a maximum of 740 watts.
  6. Cover the instrument panel below the sensor with a protective cloth.

  7. Object Number: 259369  Size: SH
  8. In order to remove the rain sensor (2) from the windshield, carefully twist the sensor back and forth.
  9. Remove the rain sensor module from the windshield.

  10. Remove the tape residue from the windshield using isopropyl alcohol and a lint-free cloth.
  11. Caution: If broken glass falls into the defroster outlets, it can be blown into the passenger compartment and cause personal injury.

  12. Use a sharp plastic scraper in order to remove the optical tape from the windshield.
  13. Use a clean lint-free cloth with isopropyl alcohol.
  14. Wipe the windshield until the remaining tape residue is completely removed.

Installation Procedure

Important: The temperature of the windshield must be 13-38°C (55-100°F) for proper adhesion.

  1. Remove the protective covering from the optical tape.
  2. Install the sensor on the windshield.

  3. Firmly push around the entire periphery of the rain sensor to windshield in order to remove any air bubbles from the tape.
  4. Hold the sensor for 10 to 15 seconds.
  5. Inspect the sensor for air bubbles between the tape and the windshield.
  6. Repeat the previous steps, if incomplete adhesion or air bubbles are present.

  7. Object Number: 309346  Size: SH
  8. Attach the rain sensor (2) to the windshield.
  9. Important: Do not move or shift the sensor on the windshield after installation.

  10. Connect the electrical connector (1) to the sensor (2).
  11. Remove the tape (1) from the windshield.
  12. Inspect the operation of the rain sensing wiper system for proper operation.