Key Fob doesn't work when it's cool
Thread Starter
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Joined: Mar 2010
Posts: 68
Likes: 17
From: Enfield CT
Key Fob doesn't work when it's cool
Help, the weather is getting cool at night and my key fob doesn't work in the morning until the temperature warms up. If I put a portable heater in the car and warm the temperature inside up for a while it will work again. My thought is the receiver, has ayone had similar problems? Any ideas?
Thanks Gary
Thanks Gary
Team Owner
Joined: Sep 2000
Posts: 25,015
Likes: 2,709
From: Far NW 'burbs of Chicago
St. Jude Donor '13
Hmmm, haven't heard of heating the interior to get the fob to work.
The usual suspects are fob battery and car battery. Is it possible that the portable heater is heating the car battery enough to make it work? Or somehow the fob is getting heated by body heat in your pocket or something like that?
Grasping at straws...
The usual suspects are fob battery and car battery. Is it possible that the portable heater is heating the car battery enough to make it work? Or somehow the fob is getting heated by body heat in your pocket or something like that?
Grasping at straws...
Team Owner
Joined: Feb 2001
Posts: 27,254
Likes: 136
From: Short Hills, NJ
I got over 5 years out of my fob battery and even before I changed it out it still worked well during the summer months.But on really cold winter days when I had it hanging outside of my pocket for too long it's old weakened battery wouldn't open the car until I really warmed it up in my hands.
A new fob battery fixed that right up.
Thread Starter
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Joined: Mar 2010
Posts: 68
Likes: 17
From: Enfield CT
Tried the new key fob battery first, no help. Also replace the car battery. It did the same thing to me when it turned cooler last year.
The key fob is in the warm house or my pocket so It doesn't seem to be the issue.
I've also tried a charger on the battery to make sure the battery is at it's peak, and no help.
I tried the heater thinking something might be heat sensitive and it worked, now I am trying to figure out exactly what that component is.
The key fob is in the warm house or my pocket so It doesn't seem to be the issue.
I've also tried a charger on the battery to make sure the battery is at it's peak, and no help.
I tried the heater thinking something might be heat sensitive and it worked, now I am trying to figure out exactly what that component is.
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Melting Slicks
Joined: Mar 2007
Posts: 3,327
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From: Summerton SC
Tech Contributor
I know this is 
but I still wish I had a "Normal Key" and not a fob, just that little peculiar probs continue to happen:
- Last week the horn went off when I opened the trunk, fob in my pocket as usual?
- People have a hard time opening the pass. door?
- Every other day as I am walking away from the car I get "3-beeps"?
- Every other week I can't open the door?
I tried a new batt a month ago, fails still happen
but I still wish I had a "Normal Key" and not a fob, just that little peculiar probs continue to happen:- Last week the horn went off when I opened the trunk, fob in my pocket as usual?
- People have a hard time opening the pass. door?
- Every other day as I am walking away from the car I get "3-beeps"?
- Every other week I can't open the door?
I tried a new batt a month ago, fails still happen
