Impala V6-3.8L SC VIN 1 (2005)
Heated Glass Element: Customer Interest
A/C - Window Defroster Contact/Tab Repair Information
INFORMATION
Bulletin No.: 03-08-48-006H
Date: April 11, 2011
Subject: Repair Information for Reconnection of Rear Window Defroster Contact or Tab
Models:
2000-2012 GM Passenger Cars and Trucks
2003-2009 HUMMER H2
2006-2010 HUMMER H3
2005-2009 Saab 9-7X
2007-2010 Opel GT
2007-2008 Daewoo G2X
Equipped With Electric Rear Window Defroster - RPO C49
Supercede:
This bulletin is being revised to add the 2012 model year. Please discard Corporate Bulletin Number 03-08-48-006G (Section 08 - Body and
Accessories).
Repair Suggestions
Soldering Defroster Contact Tabs
In many cases the terminal tab will still be in the connector when you examine the vehicle. For Chevrolet Tahoe, Suburban, GMC Yukon, and Cadillac
Escalade vehicles (with moveable glass), always replace the defroster tab (GM P/N 25916031) and the defroster electrical power connector (P/N
12034110). For all other vehicles, reconnect the original defroster tab.
In most applications it is preferable to create a new solder connection to reattach a separated rear defroster tab. If you take note of the steps below, it is
possible to create a new solder joint that is equal to, or stronger than, the original. The generic procedure below is not very time intensive, but does
include minor preparation work to create a good bonding surface. Be sure to follow each of the steps, as combined they will produce the strongest bond
possible. Please consider the following before attempting the repair:
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Soldering introduces significant heat to the glass window of the vehicle. When performing the re-connection of the tab, use only the heat required
to do the job. Pre-heat the soldering iron and have the solder in your other hand, ready to go, the moment you have enough heat to melt the solder.
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If it is winter, bring the vehicle into the service garage and remove any snow from the back window area. Allow time for the glass to warm to the
temperature inside the building. Soldering creates a "hot spot" in the glass. DO NOT solder on cold glass.
Caution
Heating the glass excessively, or repeatedly without time to cool, may result in glass breakage. ALWAYS wear safety glasses when performing
this repair!
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You MUST use a silver-bearing solder to make the connection. DO NOT attempt this repair with conventional tin/lead alloy solders. Silver
bearing solder will adhere to the electrical buss bar, making a strong and lasting repair.
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Protect surfaces under the area to be soldered. It is very easy to drip solder when performing this repair. Placing a shop towel under the soldering
area is sufficient protection.
Soldering Procedure
1. It is imperative to remove and replace the rear defroster electrical power connector by crimping a new connector to the feed wire. The proper
connector P/N 12034110 can be found in the Packard Electrical Assortment, Tray 18, Position 5.
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Insert Delphi pick 12094430 to depress the locking tab on the terminal.
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Insert Delphi pick 12094429 to release the secondary lock tab.
Important
DO NOT re-use the existing defroster tab on new-style full-size utility vehicles with moveable glass.
2. Connect the electrical connector to the defroster tab. Fully engage the connector. An improperly seated connector may cause excessive resistance
and impede the proper operation of the defroster. Add a small bead of solder to mate the electrical connector tab to the defroster tab.
