Thanks for all the responses. I checked the car battery, 12.7 volts. Replaced the FOB batteries. Right now I followed the step 7 on the "key fob won't work". Before doing this everything is lock down, including the truck. So, I disconnected the car battery for a minute. The alarm sounded. Hooked up the battery again. Alarm quit. Still the FOB did not and car did not start. Did not work, but the car was already in the lock down mode. I realize that 30 tries per MB world before dieing forever, only tried this several times.

How can I reset the alarm?