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Key fob low battery pop up

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Old Nov 14, 2024 | 09:44 AM
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Default Key fob low battery pop up

After seeing the “Key Fob Battery Low” notice pop up on my dash as I turn my NX off, I replaced the battery, but still get that pop up two weeks later. My fob works fine and my spare is in a faraday pouch, so it’s not sensing that one. Has anyone had that problem?
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Old Nov 14, 2024 | 11:16 AM
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yes, I replaced both batteries and still got low bat warning. No problems so far and it's been like that for months. it's annoying, but till it dies, I think it's just stupid data that is saved in their "perfect" system
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Old Nov 14, 2024 | 12:52 PM
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I replaced my fob battery about 6 months ago because of a "health" notification in the Lexus app. It still shows low battery to this day, but never on the dash.
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Old Nov 15, 2024 | 03:42 AM
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Very "un Lexus" like but that bar seems to get lower and lower, especially as it relates to software.
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Old Nov 15, 2024 | 05:20 AM
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Have you tried turning off your key fob after replacing the battery? This is a pure guess, but maybe worth a shot. Hold the lock button while then pushing the unlock button twice. The light should blink 4 times, and the key fob will be off.

I havent done any searching the internet for similar instances, so not sure what else could resolve it. I havent encountered this yet, but following because inevitably I will.
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Old Nov 16, 2024 | 07:03 AM
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Originally Posted by NX450Guy
After seeing the “Key Fob Battery Low” notice pop up on my dash as I turn my NX off, I replaced the battery, but still get that pop up two weeks later. My fob works fine and my spare is in a faraday pouch, so it’s not sensing that one. Has anyone had that problem?
Try turning off the FOB that is stored in the faraday pouch. I sometimes get that message when they wife is with me in the car with her FOB in her purse.

Let us know what the resolution is.
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Old Dec 15, 2024 | 11:42 PM
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Originally Posted by DocEnuf
yes, I replaced both batteries and still got low bat warning. No problems so far and it's been like that for months. it's annoying, but till it dies, I think it's just stupid data that is saved in their "perfect" system
Replaced both but the warning still popping up. Are you still getting the “low key fob battery” notice? How long has it been? Has anyone had this problem and see it resolve itself?
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Old Dec 15, 2024 | 11:44 PM
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Originally Posted by BeachyT
Have you tried turning off your key fob after replacing the battery? This is a pure guess, but maybe worth a shot. Hold the lock button while then pushing the unlock button twice. The light should blink 4 times, and the key fob will be off.

I havent done any searching the internet for similar instances, so not sure what else could resolve it. I havent encountered this yet, but following because inevitably I will.
Good idea but it didn’t seem to work.
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Originally Posted by NX450Guy
After seeing the “Key Fob Battery Low” notice pop up on my dash as I turn my NX off, I replaced the battery, but still get that pop up two weeks later. My fob works fine and my spare is in a faraday pouch, so it’s not sensing that one. Has anyone had that problem?
Had the same problem. Replaced the battery to both keyfobs, to no avail. One day it occurred to me that i actually had three fobs. I had forgotten about the credit card shaped fob i kept in my wallet. Swapped that battery out and the issue seems to have resolved. Hope this helps someone.
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