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Originally Posted by bigsky
I have a problem with the headlight sensing system. During the day the headlights and other lights are on (just as if it were night)...and it is intermittent (hate to use that word). Sometimes it all works fine. Anyone have a similar problem they traced to a switch/relay/sensor? This post is a bit of a follow up to a question I had about the HUD. When all the lights are on during the day the HUD dims and cannot be seen.
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This sounds like my problem with 2003 LeSabre. Sometimes the headlights stayed on and I didn't want them on. Other times they were off. Dealer looked at it twice. The second time his tech realized that when he wipers are on that means it is raining and in most states if it's raining the headlights have to be on. So the wipers being set to the auto-sensing position turns the headlights on.
I had noticed it when I turned the parking lights on while traveling so that the rear taillights were on for safety. The switch was warm and I noticed the little indicator light was on meaning the headlights were on.
Does your PA have rain-sensing wipers?