Battery Drain / Auto Headlights Issue?
I own a 2004 Hyundai Sante Fe 3.5L V6. I've been experiencing some odd electrical issues lately but the most challenging is that the battery will drain and I will need to get jump-started if I leave the headlights in the "auto" setting (as opposed to "off"). The battery has been replaced and is brand new, so that is not the issue.
What will happen is, at night, I turn off the car... everything is fine. Then, in the morning, I see that the directional lights are slightly blinking (and dim), and I will open the door and see the interior dash lights are dim. Plus, for some odd reason, the CD player light will blink and there will be a sound like it is loading/unloading a CD... and the car will not start. I then need to jump it and everything is fine.
The only thing I can think of that is "on" is the "auto" mode for the headlights. However, for 8 years I've always driven in the "auto" mode and there have been no issues.
I've taken it into the dealership Cammisa Hyundai 2x for this and they have found nothing. Battery fine, connections fine, cables fine, starter fine, etc. All the diagnostics produce good results as well. Their only suggestion was to attach an additional monitor and drive for a few days and hope it happens again. This is an intermittent problem and not sure this will help.
For those interested, the the other issue I seem to occasionally get is that the heater sometimes does not work. 95% of the time, its fine. Once in a while, heat will not work when the heat is "on" but if I turn the heat "off", heater may actually work (though it will not blow the hot air as the blower is "off"). Odd.