Why did my car windows and AC stop working after changing the battery?
Replacing a car battery can cut power to electronic control modules, causing accessories like power windows and air conditioning to stop functioning. This unexpected glitch locks drivers out of crucial cabin controls until the system is reset.
In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
r/autorepair1 person · September 2026
“Changed the clamp and got home to replace my battery but my passenger window stopped working I couldn’t move it down my the driver seat or the passenger seat.”source ↗
EmperorOnReddit · r/autorepair · 2 upvotes
r/MechanicAdvice1 person · September 2026
“Looking for any assistance! Thanks :)”source ↗
Breaking30Fires · r/MechanicAdvice · 1 upvotes
Where this came up
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