Home Link Malfunction

[zaksdaddy]

I own a 2012 Genesis Sedan 3.8 Premium with about 6,800 miles. About 2-3 months ago I pulled into my driveway and pushed my home link button on my rearview mirror to lift the single car garage door (we have a single car garage door and a double car garage door, each with separate rolling code openers) so I could put my Genesis in the garage. Imagine my surprise when BOTH garage doors went up! I pushed the home link button again and they both went down! I reset the home link on my Genesis and didn't think too much more about it.

Guess what, it happened again just this week! I have no idea how or why this is happening and wondered if anyone else had ever had this occur.

Still loving the Genesis!

zaksdaddy

 

[pilotdane]

How bizarre. I going to have to read up on how the rolling code system works.

 

[scottdk]

I'd like to get out the manual and learn to program the other buttoms to turn on lights in my house etc. I'm assuming I need some sort of "contraption" in the house that plugs into the appliance. would be pretty conveneient for sure.

 

[pilotdane]

Looking at the Homelink website it appears they've already thought of controlling other things like house lighting.

 

[pilotdane]

I've done a little reading about how key fobs, garage door openers and the Homelink system works. Initially I was thinking it would be a one in a million chance that the unintended garage doors code matched but it turns out the odds are closer to one in a billion.

One little detail I learned was do not press a button on your remote 257 or more times without being in range of the receiver. If you do they will loose sync and have to be re-paired. When they are synced they (transmitter & receiver) share a key code used to calculate a unique code for every transmission. Because it's common to accidentally press a button on the remote when not in range of the receiver the receiver also accepts the next 256 correct codes in the sequence.