1 Auto Shop - Turn Signal Lever

The combination switch is the electronic switch assembly that controls several vehicle functions. It is most commonly used to control the turn signals, the high and low beam headlights, and wipers. It is usually mounted on the left side of the steering column, where it is easily accessible to the driver. As the combination switch controls several functions that are important to safely operating the vehicle, when it has problems certain features can be disabled, which can cause a compromise in safety. Usually, a bad or failing combination switch will produce a few symptoms that can alert the driver of a potential problem that needs to be serviced.