GM Service Manual Online
For 1990-2009 cars only

All potential waterleak locations are sealed in production with high quality durable sealers. If you need to reseal specific areas, use a high quality medium bodied sealer. The sealer should remain flexible after curing. The sealer should be paintable. Refer to Body Waterleak Repair in Waterleaks.

Notice: The anti-theft label found on some major body panels MUST be covered before performing any painting, rustproofing or undercoating procedures. The mask must also be removed following those procedures. Failure to follow these precautionary steps may result in liability for violation of the Federal Vehicle Theft Prevention Standard, and subject the vehicle owner to possible suspicion that the part was stolen.