Originally Posted by garrett.fell

I might be in the same boat. I had my battery disconnected for 24+ hours while I was installing my tow hitch over the weekend. Anyway - the car started making beeping noises and the interior tailgate lights were flashing - I figured it was a low battery warning or some sort, so I disconnected the battery.

Anyway - now my key-fob won't work to lock/unlock the car. It starts fine, it's just that the key doesn't work. I tried a procedure to "turn the key" back and forth several-times, then hold buttons down, etc - but that didn't seem to work.

Did my car go into some sort of mode, or do I need to do something to re-initialize the key+car connection?