Discussion
This has probably been asked before but as I left work today, I couldn't open the car off the fob button. Not the first time this has happened so I braced myself for the loudest car alarm known to man opening the door manually! Shocked the odd colleague 
Is this a key battery issue and can I replace it without the need for a new fob?
Is this a key battery issue and can I replace it without the need for a new fob?
dsmith1990 said:
This has probably been asked before but as I left work today, I couldn't open the car off the fob button. Not the first time this has happened so I braced myself for the loudest car alarm known to man opening the door manually! Shocked the odd colleague
Is this a key battery issue and can I replace it without the need for a new fob?
you will most likey find there was something near by jaming the signal it happens fro time to time.Is this a key battery issue and can I replace it without the need for a new fob?
as for the battery there a sealed unit and the battery can not be replaced its a new fob
The battery in the fob recharges through the ignition system, thats why I use both the keys alternatively to keep them healthy.
I suppose the battery in the fob can fail to charge or loose its charge quickly after a number of years, that could be your problem (new fob req'd) or as said above could just be a jammed signal.
I suppose the battery in the fob can fail to charge or loose its charge quickly after a number of years, that could be your problem (new fob req'd) or as said above could just be a jammed signal.
Mine doesn't work if I'm at a track where cars are using car-pit telemetry. I think most cars have a security default when they are bombarded with signals. It's to stop the scanner boys from replicating your key fob signal or using a device to guess it.
PS. It's a myth about the car recharging the key
PS. It's a myth about the car recharging the key
AFAIK the car does charge the key - look at the key, it has a metal prong that touches the metal ignition ring on the car. There as been varied opinion on this before. But some one else suggested this some time ago which is why I thought to try it...
when I bought my car the spare was completely flat as the owner had never used it.
So I used the working key to start the car and disarm it, then quickly shut down and restarted the car with the 'flat' key whilst the car was still disarmed. Then ran the car home from purchase place which was around 100miles or so and its has worked ever since. So I now cycle the use of the 2 keys.
Bearing in mind the keys are over 7 years old what other explanation is there if the battery as never been changed?
when I bought my car the spare was completely flat as the owner had never used it.
So I used the working key to start the car and disarm it, then quickly shut down and restarted the car with the 'flat' key whilst the car was still disarmed. Then ran the car home from purchase place which was around 100miles or so and its has worked ever since. So I now cycle the use of the 2 keys.
Bearing in mind the keys are over 7 years old what other explanation is there if the battery as never been changed?
Edited by lincsls2 on Saturday 25th May 09:47
My theory is the key loses the code it needs to open the door with the press of the button. Maybe somebody has been pressing the button when they are nowhere near the car.
Open the door and start the car and drive around and then the car knows the code again!
Of course it is probably just the battery flat too.
Open the door and start the car and drive around and then the car knows the code again!
Of course it is probably just the battery flat too.
Gassing Station | HSV & Monaro | Top of Page | What's New | My Stuff