After replacing the key fob battery it does not work?

Tiny
DRANMA
  • MEMBER
  • 2004 CHEVROLET TRAILBLAZER
  • V8
  • 4WD
  • AUTOMATIC
  • 211,000 MILES
I replaced the battery in the key fob and now it won't work, does it need to be reprogrammed?
Friday, April 5th, 2024 AT 9:23 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,755 POSTS
Hi,

Replacing it shouldn't require reprogramming. Are you sure you have the battery positive facing the right direction in the FOB?

As far as programming, here is a link that explains how to do it:

https://www.2carpros.com/articles/how-to-re-program-a-key-remote-fob

Let me know if that helps.

Take care,

Joe
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Friday, April 5th, 2024 AT 8:29 PM

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