GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2008 🢒 Terrain 🢒 Preface 🢒 Cautions and Notices 🢒 Ambient Light Sensor Replacement

Removal Procedure

    Caution: Refer to Battery Disconnect Caution in the Preface section.


    Object Number: 1785991 Size: SH
  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.
  2. Remove the I/P center speaker cover. Front Upper Speaker Replacement.
  3. Gently pry up on the ambient light sensor to remove it.
  4. Disconnect the electrical connector.

Installation Procedure


    Object Number: 1785991 Size: SH
  1. Connect the electrical connector.
  2. Insert and press the ambient light sensor into position in the dash.
  3. Install the I/P center speaker cover. Refer to Front Upper Speaker Replacement.
  4. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection.