For 1990-2009 cars

# Corrosion Protection for Metal Panels With Dealer Installed Accessories Fastened By Drilled Holes

Subject: | Corrosion Protection For Metal Panels With Dealer Installed Accessories Fastened by Drilled Holes

Models: | 2008 and Prior GM Passenger Cars and Trucks (Including Saturn)

| 2003-2008 HUMMER H2

| 2006-2008 HUMMER H3

This bulletin is being revised to update the information. Please discard Corporate Bulletin Number 03-00-89-008C (Section 00 -- General Information).

### Corrosion Concerns

Frequently, dealer installed accessories, whether aftermarket or GM-approved, may require drilling holes into the body panels or supports to complete installation. Whenever you drill into a metal surface, the corrosion resistance of that panel is compromised. Testing was conducted to determine the best method used to protect the fastener-to-panel mounting holes from future corrosion. Several commercially available sealers and coatings were evaluated.

### Recommendations

In all cases, GM Vehicle Care Super Lube® with PTFE performed the best at preventing corrosion in fastener to panel interface holes and is now the official GM recommended product as shown in the above illustration. It is recommended to apply the GM Vehicle Care Super Lube® with PTFE, to any hole and fastener before installing the fastener into the drilled attaching hole or inside the metal panel.

Important: GM Vehicle Care Super Lube® with PTFE is the only product recommended and required by GM for the corrosion protection of metal panels where fasteners will be added to metal panels.

### Parts Information

Part Number | Description
--- | ---
12371287 (U.S.) 10953437 (Canada) | GM Vehicle Care Super Lube® with PTFE