One problem related to fog lights has been reported for the 2001 Chevrolet Silverado. The most recently reported issues are listed below.
While driving trying to turn on fog lights consumer pushed dome, overriding once, causing all of lights to shut off. *akthis caused consumer to lose control of vehicle, and run of the highway, went down an embankment and hit a tree. Manual states the dome overide must be pushed four(4) times within six(6) seconds.