A few little issues so far with my 2001 LS430...

Chops

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So I've had this happen about 3 times now in the past week or so. When I get to my destination and turn off the car, it will not release the key from the ignition. I have to start and shut off the car a time or two more before it will eventually release the key. Any thoughts on this?



I have also been noticing that the transmission (usually when it's cold I think), when it's shifting into 3rd gear (at low rpm and light throttle), the rpms shoot up several hundred rpm at the shift point, like it's slipping. Maybe just a transmission flush?



When the engine is cold, it idles silky smooth. You can't feel it at all, though once at full operating temp, there's just the slightest, and I do mean slightest bit of vibration at idle.



Lastly, very rarely, but it does it, I can hear a tiny bit of pinging under moderate acceleration. It doesn't do it all the time, only sometimes. And yes, I use 93 octane.



If you can give me your thoughts on any and all of this, it would be greatly appreciated! Many thanks in advance!
 

Ian Schmidt

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If you have an OBD-II code reader or a friend with one, it'd be worth checking if any codes were thrown in the ECM for the idle vibration/pinging. If not than whatever's happening wasn't considered bad enough for the computer to note. The ignition switch likely needs cleaning/lubrication, and I'd have either a Lexus dealer or a good transmission specialist check out the slipping. It could just need a flush or it could be the start of something that will get more expensive if you let it go.