Hi all, first post here. I have new 2012 CT200h with under 5k miles. I've noticed occasionally on cold start the combustion engine has a terrible vibration and knocking that occurs for the first 1-2 seconds of ignition. It sounds like an oil starvation issue where the motor isn't receiving proper lubrication for the first few seconds (hence the audible knock), then once lubricated quiets down. It's only happened a handful of times and I've never been able to capture it on video (too seldom to predict).
I had my first 5k mile check up with the dealer recently and informed them of the situation. They were not surprised by my description of the issue and stated other complaints have been received. However they also reported that at this time there is no fix from Lexus/Toyota and unless they can reproduce the issue, there was nothing they could do short of document my compliant in the service record.
I did a little research and found the problem is also experienced by the Prius owners too (makes sense, same engine & drivetrain). Here's a youtube vid of a Prius owner with the exact issue I'm having.
Are any other CT owners out there experiencing this?