On dash board has a horse shape signal with an ! in the u shape

That would be your low tire light, check the tire pressures and set them to whatever it says in the drivers door jamb, it will tell you the factory psi settings there. if you had the tires rotated recently that might cause the light to come on untill the tire positions are learned by the cards module. if all else fails a dealer is pretty much the only place that can diagnose tire pressure monitor problems