To replace an ignition switch, you'll need to either have your old switch rebuilt by a dealership so you can keep your old keys or purchase a new switch from a dealership and get a new set of keys. Either way, you should remove your old ignition switch by taking out your vehicle's steering wheel and ignition module cover, inserting the key and turning it to the accessory position, and then sliding out the switch.
How do you pick an ignition lock cylinder?
Can you program a car key yourself?
You can't, for example, take a remote for your old car and program it to your new car even if they are the same make and model. With newer cars, most likely you will not be able to program a new key yourself. You will have to visit a dealer or locksmith.
Can you program a chip key yourself?
You don't need a professional transponder key programmer to help you program your transponder. You can do this by yourself, as long as you know the right procedure. The programming process isn't complicated, but your type of car also determines that.