Do you need a new key when you change ignition switch?

When you change the ignition switch, you often do not need a new key, as the existing key can still work with the new switch if it is compatible. However, if the ignition switch is part of a more comprehensive security system or if it is designed to work with a different key pattern, you may need a new key or to reprogram the existing key. It’s best to consult your vehicle's manual or a professional to confirm the specifics for your car model.