[Redd]

The car dashboard display says that keycard battery is low even though i've just installed a new batt. Remote hands-free lock/unlock have stopped working, but manual press button lock/unlock still work.

Any ideas?

Redd

 

[castlehill]

When you say new battery installed is it actually a newly purchased in date battery or one thats been lying around for a while? Wouldn't be the first time a dud has been replaced with another dud. Is your 2nd keycard working normally? At least then we can narrow problem to keycard or car.

 

[Redd]

Replacement batt was brand new, just bought from the store. Same problem with the spare keycard which is practically unused.

Anyway, i think the problem is electrical, probably a bad antenna or receiver or something. I just suddenly lost all the TPMS sensors on the right side of the car while driving just now. Will take it back to the shop for diagnosis.

Thanks!

Redd

 

[Redd]

ok did a car battery disconnect reset and everything works properly now except for keyless entry. car locks when i walk away but wont unlock even when i pull the door handle. the only way to unlock the car is press unlock on the keycard.

redd

 

[woodsey]

i have this sometimes that it comes up that the key card battery is low. i just ignore it lol

 

[BlackCup]

Have u tried leaving it in the slot? May help?

 

[nbray67]

ok did a car battery disconnect reset and everything works properly now except for keyless entry. car locks when i walk away but wont unlock even when i pull the door handle. the only way to unlock the car is press unlock on the keycard.

redd

As blackcup says, try the key in the slot + start it up, take it out and hopefully it'll lock n fold as you walk away then unlock as you walk back upto it! Fingers crossed.

 

[Nathan]

As blackcup says, try the key in the slot + start it up, take it out and hopefully it'll lock n fold as you walk away then unlock as you walk back upto it! Fingers crossed.

As above. When you change the keycard batteries in the Megane 3 you need to start the car up with the key in,turn the engine off,take the key out and it will auto lock on its own as you walk away.

 

[Redd]

done what blackcup said as it was what the manual told me to do. basically ive RTFM and done everything it's recommended, none have worked. looks like a trip to the dealer for me.

redd

 

[Gerry]

You must push the Buttons on your Card for 5 times an than put your Card in the slot and Start the Maschine. Now you had reset the Batt-Counter!

 

[BlackRat250]

Mine has just saying battery low and just ordered a couple of new batteries. Ill let you know how i get on when they arrive.

 

[mcowey2000]

I've have had that Dave. As with other posters, I just replaced the battery, put the card in the slot then start the car. Message goes away and all is well.

 

[BlackRat250]

excellent ill do that. I would have just changed the battery. Worth doing this post !

 

[daveb225]

just for reference. When u replace a battery in the key u have to start the car stop in. Walk away lock, then unlock with hands free again and start car. That resets the battery key card voltage in the car. U may have to do it with both keys to reset both key voltage cause it will tell you u have flat key card but can mean the other card u are not using at that time!

 

[BlackRat250]

Thanks for that mate. They have arrived. Lets see what happens.

 

[frontwheeldriven]

Hey Redd,

I recently changed the battery in my keycard when the car started showing this "Keybard Battery Low" message. However the message remained there despite changing the battery & trying out my spare key. All locking/unlocking functions worked as they should throughout. One fine day, the message disappeared all on its own.

I guess it's just the electronics acting up...

 

[gdin]

How to Reset your key card after battery change

Hi guys, been reading the post.

Actually after changing the key card battery, you need to press any of the button on the key card 4 times next to the vehicle. Once you slot the key card in and start engine, the message will dissapear and the auto lock when you walk away will function normally.

Here is the link to Renault guide.
http://www.e-guide.renault.com/port...A=RENAULT+CARD%3A+BATTERY&codeVue=15&idHspt=6

And to think I bought numerous batteries...

 

[Jigna]

My car dashboard has displayed a key car low battery every time i start the engine, i changed the battery but still showing the same message on the dashboard. Any idea why this's happening folks.