Ignition Switch
By Andy Y, September 26, 2008
The ignition lock electrical assembly—or ignition switch—is connected to the ignition lock cylinder. It turns the vehicle’s electrical system on and off and also supplies the initial electrical signal that starts the engine.
Key in ignition / Image source
Symptoms of a Bad or Failing Ignition Switch
- Car may not start or start intermittently
- Engine may continue to run after key has been removed
- Key may be difficult to remove from ignition
- A failed switch may cause the radio, lights, blower motor, and other electrical components to stop working
- Steering wheel may be difficult to lock or unlock
Ignition Switch Related Repair Advice
- The term "ignition switch" commonly refers to the assembly, which includes the ignition lock cylinder and the ignition switch. Depending on the type of failure, these parts can be replaced individuality or as a unit.
- Most newer vehicles require some type of theft system "re-learn" after replacing the ignition switch and/or the ignition lock cylinder
- If the ignition lock cylinder is hard to turn with the key, the key should be inspected for wear and/or damage before replacing the ignition lock cylinder
Related Questions
See what others have asked about this, or visit the Questions page to ask your own question.

Is it hard to change out an ignition switch. the key is broke off inside and i dont think we can get it out.

My key is stuck in the ignition switch! one time it was stuck and i jiggled the key and made sure the gear was all th...
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