Key FOBs stopped Functioning

[Edge_Beast]

Vehicle: 2011 Edge Sport non IA equipped.

 

From one day to the next both FOBs are unoperable. Remote start works fine, lock/unlock switches work, exterior keypad works, batteries on FOBs are good. Keys start the vehicle up. I tried reprogramming the fobs themselves but they are not being recognized when programming mode is entered. Im thinking its the actual RKE receiver that went dead. Last thing I'd want is to take it in to the dealer and wait all day for a quick job. Any ideas where the receiver is located or what i should try next? Thanks in advance.

[Edge_Beast]

Quick update. I entered the vehicle , shut the door, gave it a couple of seconds for the lights and everything to shutdown. I pressed the lock button on the fob and heard a faint click sound coming from instrument panel/steering wheel area. 15-20 seconds later another slight sound is heard. I press unlock button and same thing happens. Press panic button and same. Something knows im pressing the fob buttons but doesnt trigger the actual lock/unlock/panic features at all.

Edited October 20, 2013 by Edge_Beast

[akirby]

I hate spammers. Especially the ones that use different screen names.

[CET999]

2007 Edge SEL Plus. Keys come with door entry lock, unlock, alarm. Have separate fob for remote start. About mid October when first cold spell came in, the key I was using failed to unlock the door/s. So I simply used the key to manually open the doors. Later I switched over to the 2nd key. The second key work fine with the unlock/lock/alarm --until yesterday.

We are in another cold spell (-20+Celcius). The key failed to unlock the doors, so used the key manually. I was xmas shopping, so I was off to another location. I locked the doors from the door panel upon exiting (this is the norm for me). When I returned, I tried the button on the key to unlock the door -- it worked! So I am off to yet another location. I used the door panel button to lock the door upon exit. Upon my return I tried the key button to unlock the door -- it failed. And that is the condition it is in at the moment.

 

So, is there anyone out their that understands what in side the car that is not getting the signal from the key, or failing to carry out the action.

My thoughts: Because there is a computer like device processing the signal codes -- could the low ambient temps be causing a problem with transistors or could moisture/ice crystals interfere with the connections or solenoids?

 

I had this problem with my 2004 Sorento -- after -20C the computer controlling the remote start process failed to work or work correctly.

That was due to cold temps freezing one of the sensitvie components- which was replaced under warranty- problem went away.

 

One person I verbally spoke with said it could be to a low battery -- I don't think so -- there are no other problems.

 

Update:

I replaced the battery in both key fobs, I did this while sitting in the drives seat. Both fobs worked fine afterward. I did not have to go through the key/car learning process.

Edited June 17, 2014 by CET999

[Edge_Beast]

I eventually got one of the fobs to program. What did I do? I diconnected the vehicle's battery for a few minutes and violá, got a fob to learn the program. I wonder if replacing the vehicle's battery a few weeks prior had anything to do with it.

[CET999]

Well I read all there was to read and found that the batteries inside both FOBs went dead pretty much at the same time. I found out the type of battery, went and purchased 2 new ones. Open up the fob (back side up) replaced the battery (in both). tried one key then the other -- they both worked. I did not have to re-do the programming!!! I read if you change the battery out within 30 seconds of opening the key fob that the programming would not be lost. In the years I have owned cars with remote starter fobs and smart car fobs that is the first time I have had to replace a battery. ?? With regards to change the battery in the car. I found out that it does mess up the remote start programming and it has to be re-set, so I am assuming the same thing would happen to the ignition key fob if the battery change out takes a long time, or the battery goes dead - completely or you disconnect a battery cable for a long period to erase the error codes.

Edited June 17, 2014 by CET999