My 07 did the same thing after i removed every wire individually from the cluster pin plug. I was having an issue where the chime was intermittent when wiggling the connector to the cluster. When I removed each wire one at a time I opened up the prongs very carefully the reinstalled each one when I was finished. Unfortunately I reinstalled 1 of them into the wrong location on the plug. It gave me the pats warning. It was the transponder wire that I put into a blank spot by accident. That connector behind the cluster is prone to lose connection if there has been any movement to the cluster assy. If you remove each pin, make sure you take a picture of each wire location for future reference. A faulty connection will give you your exact symptom. The cluster is a module. A bad connection will give you many issues. Also my fuel gauge was always reading differently every time I started the vehicle. If I slammed my hand on top of the dash it would sometimes make the fuel needle re-adjust. All this was resolved after I opeded each wire end in that connection plug. There is a way to remove each wire individually from the connector. Be very careful not to break anything.