Cadillac DeVille DTS Instrument Cluster

My Question Is Related To Heating. The Vehicle Will Not Heat Up When Idling, But Blows Warm/hot Air Air When It Is Being Driven. It...

Car Was Warming Up Then Shutoff No Power On Instrument Panel, Locks,lights ,but The Seat And Side Mirrors Move. The Steering Will Adjust...

While Driving The Cadi Dts, The Temperature Guage Went To Hot And Monitor Said A/c Is Off - This Is The First Time It's Ever Done This. I...