Here's how to troubleshoot and try to turn them off:
* Completely turn off the ignition: Make sure the key is completely removed from the ignition switch, not just in the "accessory" position.
* Check the headlight switch: Ensure the headlight switch is in the "off" position. It might have a separate setting for parking lights, be sure that's off as well.
* Check for a faulty headlight switch: A malfunctioning headlight switch is a common cause. This requires replacement, usually involving a qualified mechanic or a DIY job with the right tools and knowledge.
* Check the daytime running lights (DRL): Some vehicles have DRLs that remain on even with the headlights switched off. These can't usually be switched off independently, but there might be a fuse you could pull temporarily if you are extremely concerned (but that's not ideal).
* Battery drain: If the headlights stay on after trying the above, it's a serious problem. Leaving the lights on will drain your battery. Disconnecting the negative battery terminal will shut the headlights off immediately. This is a temporary solution, as you'll need to fix the underlying issue that's keeping them on.
If none of the above works, you have a problem that needs professional attention from a mechanic. Leaving your headlights on will drain your battery and potentially cause other issues.
