Car ignition key wont turn
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I have an 07 RX400h and sometimes the key wont turn. What is the cause of this?
If you physically can not turn the key in the ignition it is likely due to the steering column interlock. This is a feature designed to prevent vehicle theft by preventing a thief from being able to steer the car even if the ignition is “hot-wired”. This can happen from either a worn or improperly made key (like a duplicate key). More common is that you can get around this by simply moving the steering wheel back a forth a little bit while trying to turn the key. If this works, the problem is just the friction in the steering column interlock due to a little bit of load on the steering wheel. It should not take much pressure on the steering wheel to allow you to turn the key.
I found some video of the steering lock problem but this wasn’t the fix for my particular problem.
I fixed it by lubricating the lock with liquid graphite. Now my keys turn every single time without missing a heartbeat.
Mr Roth, is there a way I can reach you by email? I’d love to discuss with you a project that I’m working on and is in dire need of your help.
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