GM Service Manual Online
For 1990-2009 cars only

Important: Do not use an abrasive cleaner on the roof vent window. An abrasive cleaner may scratch and permanently damage the tinted coating on the inside of the window.

An application of a silicone lubricant GM P/N 12345579 or equivalent will achieve the following results:

    • Prolong weatherstrip life
    • Assist in sealing
    • Assist in eliminating squeaks