The headlight switch controls your vehicle’s headlights, fog lights, and sometimes dashboard lights. If the switch fails, your headlights may not turn on, stay stuck on, or work intermittently. Replacing a faulty headlight switch restores safe and reliable lighting control.

What is a headlight switch replacement?

This service involves removing the faulty headlight switch and installing a new one. Depending on the vehicle, the switch may be located on the dashboard, steering column, or as part of a multifunction switch assembly.

Why do you need a headlight switch replacement?

A faulty headlight switch prevents you from controlling your headlights properly, which reduces visibility and makes driving unsafe. It can also drain the battery if the headlights stay on when the vehicle is turned off.

Common signs you need a headlight switch replacement

• Headlights won’t turn on or off
• Headlights flicker or work intermittently
• Fog lights or high beams don’t respond
• Dashboard lights fail to dim or switch on
• Burning smell or heat coming from the switch area

What happens during a headlight switch replacement?

A mechanic will:

1. Inspect the headlight switch and related wiring
2. Remove trim panels or steering column covers to access the switch
3. Disconnect the faulty switch from wiring harnesses
4. Install a new headlight switch or multifunction unit
5. Reconnect all electrical connectors securely
6. Test the headlights, high beams, and dashboard lights for proper function

How much does a headlight switch replacement cost?

Headlight switch replacement typically costs $150–$400. If the switch is part of a multifunction assembly with indicators or wipers, costs may rise to $400–$700+.

Is it unsafe to drive with a bad headlight switch?

Yes. If your headlights cannot be switched on, you will have limited visibility and be less visible to others, especially at night or in poor weather. A faulty switch should be replaced immediately.