- Check the ignition switch: The ignition switch may be worn out or damaged, preventing the key from turning. Try inserting the key and turning it gently while wiggling it back and forth. If the key suddenly turns to "on," the ignition switch likely needs to be replaced.
- Remove the steering lock: Some Honda Odysseys have a steering lock that prevents the steering wheel from being turned when the key is not in the ignition. Try turning the key to "on" and then turning the steering wheel all the way to the left. If the steering wheel suddenly unlocks, the steering lock is likely the problem.
- Check the shift lock: The shift lock prevents the transmission from being shifted out of park without the key in the ignition. Make sure the transmission is in park, and then try turning the key. If the key suddenly turns to "on," the shift lock may need to be serviced or replaced.
- Check the battery: A weak battery can cause the electrical system in your car to act up, including the ignition switch. Try jumpstarting the battery and then see if the key will turn. If the key turns with a jump start, the battery needs to be replaced.
- Lubricate the ignition switch: Spray a small amount of WD-40 or lubricant into the ignition switch. Turn the key back and forth several times to work the lubricant into the switch. This may help to free up the switch and allow the key to turn smoothly.
- Consult with a professional locksmith: If you have tried all of the above solutions and the key still won't turn, you may need to consult with a professional locksmith. They may be able to identify the specific issue and provide a solution.
