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Advance Service Info - Inoperative Left or Right Fog Lamp

Subject:Inoperative Left or Right Fog Lamp (Fix Not Yet Available)

Models:1997-2004 Buick Regal

Attention: The Fog Lamp assemblies referred to in this bulletin were factory installed from November of 2002 to the currently built 2004 models. This bulletin encompasses models back to 1997 as these assemblies are the direct replacements for those vehicles and you may encounter them on these older vehicles if replacement was required. See below for how to identify these lamps.


Customer Concern

Customers may comment on inoperative fog lamps. In addition, the lamp housings may appear to have moisture, corrosion, or water trapped inside. During the 2003 model year, a material change took place in the construction of the lamp housings. The new plastic may open from the heat of the bulb and cause a hole in the top of the lamp housing, admitting and trapping water inside. Any contact with water may cause the bulb to shatter if it is in operation.

What Action to Take

Examine the front lens of the fog lamp. If the lens has "AutoSytems" printed on the lens, this lamp is effected by the bulletin. At this time, take no action as revised lamp assemblies are not currently available, and replacement lamps may fail in the same manner. Take the customer's name and contact them when the soon to be released Technical bulletin is available with revised parts. If the customer acknowledges that the condition may return but has a specific need for the fog lamps to be operational immediately, you may replace the housings with the current replacement lamps. If you do replace them at this time, inform the customer that they will only be replaced with the revised housings if the current ones fail again.