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2011 Buick LaCrosse CXS rear windows and doors issue codes U154A and U1548


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Buick Ownership
2013 Buick Lacrosse AWD
I never figured mone4y out either. Luckily it's an easy reach to the passenger side switch, and kids can control the rear windows if they are in the back. I haven't been able to replicate the leak anymore either. Good luck.


I will start with the drain pipes for the sunroof brother. Check them out make sure that they're draining right.
Try blowing them out with air,dirt in the drains, BMWs have the same problem,then see what happens when you apply water to the sunroof
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