[csimonson21]

I used my key to unlock my car and it worked fine then I went to try and open my trunk with the trunk button and it didn't work, so I tried to manually open the trunk and that didn't work, so I went back to the driver door and it was locked for some reason. Then the buttons on my key stopped working entirely. I tried swapping the battery with my spare key and still no luck. Both keys worked fine earlier today. Any help?

 

[Diggs]

Resynch with ignition. It happens sometimes.

 

[Ian78]

Get in the passenger side with the key.
Turn ignition on and start the car, it should reset it.
I have two keys and sometimes randomly one key will just suddenly stop working.
You might be able to just press the buttons on the key that has stopped working with ignition on.

What Diggs says but just added a bit as it has happened a few times over the years.

 

[aerojon]

pressing the buttons does bugger all..