Rough / noisy/little vibration when engine starts up when stationery.

[Alwyn Charles]

I have a 2010 450H, 8 months into ownership. 

 

When stationery and engine kicks in to charge the Battery, whereas before transition was seamless, now its rough as if a mount or Bush worn.

 

Any ideas?

[PCM]

If it was me, I'd stare under the bonnet for anything obvious, and then think if I bought it from Lexus and therefore does it have a Lexus warranty, or serviced at Lexus with a Relax warranty, or think about my local and trusted independent garage for a check...

I'm sure others here will share much greater wisdom.

 

[DF-300 Sport]

Could it be a loose heat shield?......the manifold HS in my IS300h is very loose, by desigh, according to Lexus Glasgow....to allow for expansion.....🤔....if only crinkle or single coil washers had been invented to overco.e such a phenomenon🙄, come on Lexus, my 17 year old IS300 has no such design feature🤓👎

[PRT68]

I had similar problem on a Prius. Change of spark plugs sorted it. Try an Italian tune up first!