How do you start a car without the ignition key?

Answer:
Those with mechanical knowledge of vehicles can often start a car by bypassing the ignition key ("hot wiring"). However, the most modern of vehicles can sometimes present a problem with their advanced security systems.

If you have misplaced your keys, your car dealer or a locksmith can likely help you.

Cars Recovered or Without Any Keys
You can power up the ignition coil with a jumper wire. If it has a manual transmission, you can push-start it. For an automatic, you will need to bypass any steering or transmission lock and jump the starter solenoid.
First answer by Dfoofnik. Last edit by Dfoofnik. Contributor trust: 2552 [recommend contributor recommended]. Question popularity: 6 [recommend question].