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Low Key Battery

3149 Views 2 Replies 3 Participants Last post by  Wang
Last night I noticed on dash a Low Key Battery warning came on. I have the car 2 years but it,s a 2019 model. I then found the Spare key for the car and used that. All was good.
But this morning after work I got into the car, still with the spare key and again the warning came up on the dash.That,s comes up and then disappears.
I,m going today to get 2 new batteries,from the local car factors, shop. I hope the dealer doesn,t have to do this.
Anyone else had this problem?
My previous Outlander, I only had to change the battery once over 11 years!!

PS. Replaced one battery and will monitor.He did tell me to swap keys regularly.
Both keys wer showing as working (red light showing) so unsure as to what's happening. If it continues I will ring the dealer and see if an update is needed with the system.
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I think the proximity key sensors for the push-start and door locks draw a lot more battery power than old lock/unlock/panic fobs. Had the first low key battery warning in 2020 on my 2019 model, and since I've gone through another battery but it was based on how close I need to put my pocket up to the rear hatch to get it to unlock and open on proximity.

Re: using the spare key.. depending on how close the main key was it may have still detected it and the low battery - hanging on the wall of the garage 5 feet away? Or the spare may also be low. Could try moving it further away or see if the warning comes up with the spare when you start up at the grocery store.

The fob is easy to split open and swap in a new 2032 cell. Find a multipack on Amazon of a decent brand for $2-3/cell. I keep one in the center console - my fob has a removable door key, so I can always get in and get to the backup battery if its fully toast, but I think the manual even states to use the fob to push the start button if its real close to dead.
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I think that I got the same problem as what Gerrymac has mentioned. I have replaced my FOB key with a brand new battery but the display still keeps warning "key battery low". It looks something to do with the car not the key! I wish that someone has figured out this problem...
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