So this has happened twice in the last week or so. I have an 04 S4 Base (about 130k miles), I parked my car outside overnight and when I got back to it in the morning, my brake lights (as well as the third brake light) were on. At first I thought I'd left my lights on, so I looked inside and realized that no I had not left my headlights on. I turned the knob to switch on my headlights and then turned them off again, went around back and saw that my rear lights were still on. That's when I saw the third brake light was lit so I pumped the brake pedal and that's when the lights went out. On both occasions this has happened, it has been relatively cold outside (about 40-45 F which is cold for Texas) so I was wondering if anyone else has had this problem? I have never seen it before, and it hasn't happened (yet) when I've parked in an underground lot overnight. What could it be? Brake switch?
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