So I just recently started to hear a droning noise within the cabin of 2016 RC F. Its kinda loud and begins most the time a couple minutes after the car is turned on. (Fuel pump recall has not been done)
Anyone got any ideas? Cars at the shop now... and I guess I'll know soon enough.

 

Can you make a video? Is it cold start or warm start? Do you have an exhaust or stock?

 

Not sure if your 16 is affected. But there is also a flash for the LOW pressure pump. Not the recall.

 

Wish i could make a video, car is in shop. It was heard during a cold start and warm start. All oem parts.

Unless my tint guy switched out some parts when i wasnt there

 

turns out that the droning noise was due to a software calibration update for the low pressure fuel pump. My brakes were also squealing and Lexus is giving a common curtsy for RC F squealing brakes.... and they replaced them.

 

Keep in mind, they will replace the pads with the TSB pads, which have less dust and no squealing noise, but they do not have the stopping power that the OEM pads have. My car's brake pad squeal as well especially when they are cold, but I keep the OEM pads.

 

What does TSB stand for?

 

 

I just noticed this in mine as well. I did have the fuel pump recall done. I'm going to take it to the dealership and mention it.

Here's the link to the service bulletin
low fuel pump abnormal buzz