Key Fob not detected after replacing the car battery?

2018 NISSAN SENTRA
68,000 MILES • 1.8L • 4 CYL • AUTOMATIC
Avatar
CLINKE10
  • MEMBER
  • 1 POST
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.
May 5, 2024 at 4:14 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 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.

Images (Click to enlarge)
Attached Media
Attached Media
Attached Media
May 6, 2024 at 7:59 PM