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Proper lighting for your car is essential. The courtesy light switch is a simple electrical switch that has a ground and power supply that run through a light bulb when it is activated, completing a circuit. When you get into your vehicle at night, you may have to hunt in your purse for keys or in your center console for change at the drive thru window. The dome light illuminates your car so these problems are eliminated. When you open your door, the courtesy light illuminates if it is set to the ‘door’ position. Your entry and exit from your vehicle is illuminated so you can see your immediate vicinity and any belongings you need to take with you. It usually dims out or turns off within 30 seconds, or when the ignition key is cycled. With the press of a button or flick of a switch, you can turn the dome light on with the ignition on or off to see whatever you need in your car. You’ll need to turn the light off to prevent battery drain when the ignition is turned off. If the courtesy light switch is not working, the dome light won’t turn on. Sometimes the interior light will be dim, indicating a problem with the switch as well.
Light bulbs do burn out regularly but switches do not. If your courtesy light is not working, have one of our expert technicians check it out and replace the switch if necessary.
The interior light is not integral to the safe driving operation of your vehicle. It is, however, required to work in most jurisdictions for a safety inspection. Replace a defective courtesy light switch as soon as feasible.