Benjaminx

Hi there. I have a 2013 Lexus Ls460, 66,000 miles. When I started the engine and gear to reverse the engine is normal and when I put to D the rpm dropped and the engine shake a little bit but only happen sometime, and when the ac is on the engine not shaking but ac turn off the engine shake again. Is it normal? Or anything wrong ? Please help thank you

Benjaminx

I am sorry and it is 2013 Lexus LS460 f sport package

droclex

My understanding is that when all climate controls are off (including the heated or cooled seats) the car will idle a little rough. It has been my experience as well, so I always leave my seat cooler or heater turned slightly on. This eliminates the shakey idle 100%. I don't think there's anything to worry about.

Benjaminx

Will try that. Thank you so much . I will let you know if it's work. So I shouldn't be worry about the engine shaking and it's normal right ? Thanks again

droclex

No prob! I read not so long ago that the car is designed to be actively managing the interior's climate at all times. So when it's not doing any of it, the rpms drop and it idles differently. There's a few other threads on this subject, and if I recall the conclusion was that, yes, it's normal if your idle drops/rumbles when the climate controls are all off. If it's idling rough when the AC or seat coolers/heaters are on, then you may want to have the dealer take a look

Benjaminx

Thank you very much for your help