Thanks for your response. The dealer did not install the new P.A.T.S. module. It was done by a local repair shop. But I do plan to take it back to the dealer. I assume they will check everything out and hopefully get to the bottom of this. What is strange is that it only happens in the morning on the initial start. The rest of the day everything is fine. I have seen the Odometer problem (Instrument Cluster bad solder joint), and had the Instrument Cluster replaced. This new problem did not occur until after that replacement. I am sure this has something to do with the inner workings of the Instrument Cluster and the P.A.T.S. It is almost like something discharges during the night and has to be recharged before it will work. If you try to start the truck in the morning the Instrument Cluster is wacko and the P.A.T.S. system seems to not work. By turning the key to "on" and just letting it sit in this position for about 3 minutes or so, you can see the Instrument Cluster slowly come to life. Once that occurs the truck will start but the Instrument Cluster is still a bit wacko. After driving off, it settles down after about a minute or two of driving. I doubt this is a bad solder joint. It is almost like a bad relay or capacitor somewhere. I wish there was somewhere I could go and look at a complete wiring diagram to see what all is involved in this system.