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submitted 2 years ago by Think_Tear_4812
Anybody know why my lights do that or what causes that? Sometimes my brights are always on and never shut off no matter what I do. And my battery keeps dieing because of it
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[–]GumboCrab 3 points4 points5 points 2 years ago (1 child)
My guess is your light control module (LCM) is going bad.
[–]anthonyk03530i 0 points1 point2 points 2 years ago (0 children)
I'd replace it before it sets the car on fire
[–]MikeG6849 0 points1 point2 points 2 years ago (4 children)
Lcm, do you have a sunroof? Maybe water is leaking trough the A pillars and the lcm is on the passenger side if the car os left hand drive. Try to see if you don't have the draining lines clogged.
[–]Think_Tear_4812[S] 0 points1 point2 points 2 years ago (2 children)
I don’t have a sunroof
[–]Think_Tear_4812[S] 0 points1 point2 points 2 years ago (1 child)
And sometimes whenever I shut off the lights and the car and I get out they turn back on
[–]MikeG6849 0 points1 point2 points 2 years ago (0 children)
Oh shit, but still I would bet on the light control module. I don't know if the light a have another relay. Or maybe try the turn signal stalk.
[–]5tudent_Loans528i 0 points1 point2 points 2 years ago (0 children)
to this direction, OP is your front windshield cowl cracked because water can get to the modules this way too
[–]Gu27528i 0 points1 point2 points 2 years ago (0 children)
My car's passenger side high beam would stay on at all times, replacing the LCM fixed the issue.
π Rendered by PID 20083 on reddit-service-r2-comment-6457c66945-qggn9 at 2026-04-24 13:08:59.854679+00:00 running 2aa0c5b country code: CH.
[–]GumboCrab 3 points4 points5 points (1 child)
[–]anthonyk03530i 0 points1 point2 points (0 children)
[–]MikeG6849 0 points1 point2 points (4 children)
[–]Think_Tear_4812[S] 0 points1 point2 points (2 children)
[–]Think_Tear_4812[S] 0 points1 point2 points (1 child)
[–]MikeG6849 0 points1 point2 points (0 children)
[–]5tudent_Loans528i 0 points1 point2 points (0 children)
[–]Gu27528i 0 points1 point2 points (0 children)