Key Fob questions

[markjon]

Lately every time I enter my car I get the message that the key fob battery is low. Even after installing a fresh battery I get the same warning. The car will operate normally but I'm sure something is a miss. My spare fob, which has a much older battery doesn't do this. Does anyone have any insight for this problem? Has anyone else had the same?

Sponsored

 

[MrJones02]

When I change the battery, it usually still shows that message the next 2-3 times/days I get in the car ... it should go away soon.

 

[gnr3312]

I get a message that says my keyfob isn’t detected, to move it around, so I just jiggle and it goes away. It’s weird because no other vehicle has ever had this issue.

 

[PorscheTaycan]

How weird. I’ve never had a key fob issue. I wish we could go the Tesla route and be keyless and use the phone as key.

 

[911GP]

I had this issue too when using a fresh battery I had at home from a blister pack. Ordering a new battery made resolved the issue. Ie very fresh

 

[Gino]

Lately every time I enter my car I get the message that the key fob battery is low. Even after installing a fresh battery I get the same warning. The car will operate normally but I'm sure something is a miss. My spare fob, which has a much older battery doesn't do this. Does anyone have any insight for this problem? Has anyone else had the same?

I’ve had this problem a few times. I’ve tried everything including cleaning the battery and contacts to the battery but in the end I had to replace the battery even though the one I used came out of a new pack. From now on I will check the voltage on the coin cell before I install it to see if the battery is already lower than it should be.

 

[markjon]

When I change the battery, it usually still shows that message the next 2-3 times/days I get in the car ... it should go away soon.

Thanks. I hope you’re right

I’ve had this problem a few times. I’ve tried everything including cleaning the battery and contacts to the battery but in the end I had to replace the battery even though the one I used came out of a new pack. From now on I will check the voltage on the coin cell before I install it to see if the battery is already lower than it should be.

Actually after replacing the battery and still getting the warning I did check the voltage of the battery. It checked good. I then checked the battery voltage of my other fob that hasn’t shown this warning and it was much lower. So ???

 

[Gino]

Thanks. I hope you’re right


Actually after replacing the battery and still getting the warning I did check the voltage of the battery. It checked good. I then checked the battery voltage of my other fob that hasn’t shown this warning and it was much lower. So ???

I haven’t had the problem for the last year but whenever I replace the battery going forward I buy a fresh battery and wash my hands well before I touch the battery or the key fob which I clean thoroughly with 91% isopropyl alcohol along with the new battery to insure there are no oils to cause conductivity issues. If the problem comes back then it will likely be the key fob itself. Hopefully the key fob is covered under the Porsche extended bumper to bumper warranty.

 

[tigerbalm]

I've had this happen a few times. The low battery warning would stay showing for a few days after I change the battery in the fob. But eventually it would clear.

No clue why, but nowadays I just accept it will take 48+ hrs before the warning will stop showing.

 

[whitex]

I have also seen the low battery warning linger, but ignored it, and the car caught up in some reasonable timeframe (sorry, all I remember is that right after changing out the battery the warning was still there, then it was gone within a a day or maybe few days). Similar thing happens with my wife's Audi. I'll try to see how long it takes next time I change the fob batteries, I just never cared enough to worry right after I changed them, since everything worked just fine.

EDIT> Last time I changed my batteries was before the warning showed up, but when my hatch/trunk would stop mid-way when "lock&close" button was pressed. I knew from experience that means it was unable to "hear" the fob when closing, so I just changed the battery then - it was before any low battery warning.

Sponsored