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Key Fob not detected after replacing the car battery?

Tiny
CLINKE10
  • MEMBER
  • 2018 NISSAN SENTRA
  • 1.8L
  • 4 CYL
  • AUTOMATIC
  • 68,000 MILES
HI,

After changing my car battery, the key fob is not detected sometimes, or it takes a while when I'm in the car. I'm assuming a battery change in the fob itself would help? But maybe it needs to be reprogrammed and I'm not sure how to do it.
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Sunday, May 5th, 2024 AT 4:14 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,489 POSTS
Hi,

If you removed the battery, it shouldn't affect the programming for the FOB. The first thing I would check is if the battery in the FOB is weak or failing. That is my first suspect because if it was a programming issue, it wouldn't work intermittently.

I attached the directions for battery replacement below. Take a look and let me know if you have questions.

Take care,

Joe

See pics below.
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Monday, May 6th, 2024 AT 7:59 PM

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