The ignition switch is the most important electronic component in your vehicle. There are a number of reasons why your ignition could be causing issues. It could also be your transponder in the key or a broken key that has been worn down. Worn out or jammed up wafers, as well as a jammed ignition can cause issues.
If your car suddenly stalls or won't start, then it could be a manufacturer defect, attempted vehicle theft, or possibly a break in the line with the battery. If your car starts but then also stalls, you could have an issue…