Chevrolet Impala owners have reported 4 problems related to headlight concealment device (under the exterior lighting category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Chevrolet Impala based on all problems reported for the Impala.
Defective headlight assembly. Moisture condenses on front of assembly obscuring light somewhat.
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all problems of the 2002 Chevrolet Impala
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The consumer states the head light lenses produced condensation. As a result, the lights were dim. Water was getting into the headlights and there was a front and rear alignment problem. As a result of these two problems, there was poor night vision and the tires needed to be replaced.
On going problem of moisture build up in head light housing. Dealer states that this is a problem for all chevy Impalas and nothing can be done except to "blow out" the moisture. This condition occurs everytime lights are turned on. Dealer calls this the greenhouse effect. Illumination of roadway at night is effected. Problem reported to gm however, complaint number 1-188065149, they did not indicate that this would be looked or addressed.
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all problems of the 2004 Chevrolet Impala
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Headlight filling with water vapor degrading quality of light.