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Passenger window goes down on its own

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#101 ·
FRC said:
Could be an early indication that your 12v battery is failing.
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Wow, really? It is the original battery and the car is 4 years old. So probably due soon.
 
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#103 ·
FRC said:
The 12v on my 2018 barely made 2 years. Others are still going strong.
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Been reading battery posts all evening. Would love to go with a lighter Lithium, but not keen on all the reported issues and compatibility issues with software updates. Might just have Tesla Mobile Service come put a stock replacement in.
 
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