What is the Indicator Bulb all about?
The indicator bulbs are located inside the light assemblies on all four corners of the car. The turn signal switch takes the drivers input and sends power to the corresponding bulb to inform other drivers that you intend to change lanes or make a turn.
Keep in mind:
If all four indicator bulbs stop flashing or lighting up, it is likely that the indicator switch or flasher has gone bad, not the bulbs.
How it’s done:
- Verify that the indicator bulb does not flash.
- Remove the bulb if found faulty.
- Check the indicator flasher.
- Check proper operation of indicators.
The mechanic should check all the lights in your car every time you get a major service.
What common symptoms indicate you may need to replace the Indicator Bulb?
- Indicator lights are not flashing or lighting up.
How important is this service?
Indicators exist to alert your surroundings that your vehicle will be making a turn. When you press the lever on your steering column, front and rear indicator bulbs flash, to let drivers around you know of your intention to make a turn. When a indicator bulb dies, that turn signal will no longer light up. This means that your vehicle will not alert drivers in front of you (if it’s the front indicator bulb) or behind you (if it’s the rear indicator bulb) that you plan to turn, which makes your vehicle a safety hazard. Not having a functioning indicator is also illegal, and carries a hefty fix-it ticket price.