hi my caddy deville about last week two different warning messeges came up n i dnt have a clue wat it is the first messege is starter disable so it tells me to wait 3 minutes to start the car and then it starts i thou it was the battery so i put in a brand new battery but that wasnt it it still comes up and the other one is theft system car may not restart so it did not start wat i did i took the battery in to get it checked to see if it was the batt the battery is good so i installed it back on and it turned on butboth messeges are still coming up andi have to wait the 3 minutes to turn it on please help

 

You have pass key fault, Need to have it checked out before car stops starting. Search tech, model, and FAQ sections there is plenty of info. Most likely need ignition cylinder which will require new key.