It Happened Again

Yesterday on her way home from work, My wife's trailblazer (2003 LT) shut down. She was waiting at a light and it just turned off. This happened about a week ago. No cluster lights came on when this happened. She put it in park, turned the key on and nothing happened. She said that the normal clusters light that come on when you turn on the key did not. She than turned off the key, took it our of park and put it back in park, turned the key and it started. I am going to bring it to the shop Tuesday. Do you think there will be any codes in the computer? Any ideas of what it could be? Thanks

Feb

Check the battery and battery cables for loose or corrossion.

Also the ign switch has been problematic.