Hello guys,
I just had an issue with my left headlight bulb. It turned kind of purplish and sometimes it turns off completely. When I switch to manual headlights, it turns back on.



Also, I got a message saying that my key fob battery is low. I’m not sure if that affected the system or caused any of this.

Should I switch the fuse off and turn it back on, disconnect the battery, or what should I do here?

 

I don't notice a purplish color, but the second image does appear that maybe the headlight isn't as bright as in the first image. Does your car have projector halogen headlights or HID? If HID, either the bulb could be failing or maybe a ballast is failing.

What do you mean by " switch the fuse off and turn it back on?" The fuses are either installed or not, there's no switch on them. But the fuses for the headlights are known to make poor connections for the headlights on these cars, and sometimes replacing the fuse can solve headlight issues. In my 2018 I have HID headlights and the left headlight became intermittent. I took the fuse out, inspected it, and noted some discoloration on one of the legs. I didn't have a replacement on hand so I burnished the lead and reinstalled. The headlight has been working fine since. In my case the headlight would turn off completely, not just get dim, but I expect that's due to the HID ballast. If you have halogen headlights it's possible they could run dim if the fuse is not making a great connection.

-Rod