One problem related to fog light switch has been reported for the 2015 Chevrolet Impala. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Chevrolet Impala based on all problems reported for the 2015 Impala.
Lt model. Headlights are extremely inadequate such that they represent a hazard when driving on unlit roads. They send forward a focused beam with no light covering the sides or overhead. This makes it very difficult to turn on to a side road because there is no illumination of the road you are turning onto until you have actually made the turn. It is also easy to miss exit ramps. Overhead signs and signs at the sides of exits are usually unreadable. The low beams actually have a shutter covering the top of the bulb (I guess that's what makes them low beams) so objects much above the level of the top of the car are not illuminated. When driving on hilly country roads, the cutoff on top makes the approaching hill just about invisible. When driving in the rain, it is nearly impossible to see lane markings, etc. The car also does not offer fog lights as an option so there is no supplemental lighting to alleviate the problem. I strongly urge a recall to either change the headlight design or to install supplementary lighting such as fog lights to better illuminate the pavement and the areas to the sides of the roadway.