From time to time, randomly I find that the cars operating system lags out for example:

1. Switching songs delay
2. Volume higher or lowering delay
3. Delay varies sometimes its a 30 second lag, other times its like a 2 minute lag which is super weird because the volume will be blasted out of nowhere
4. Delay when switching in between different sources, Radio, CD, Bluetooth etc..

Is anyone else having the laggy in car software issue?

 

I have the older system in my 2013. No problems with mine. Is your's a 2016 or newer?

 

Hello bro it’s a 2015

 

What audio source are you using?

Checking www.lexusdrivers.com for multimedia updates shows
no currently available files for 2015 ES350 with or without Nav.

 

2014 with nav...USB stick with ~2100 tunes in 8 folders. Sometimes take a couple of minutes on a fresh startup to read the stick. Bluetooth streaming from iPhone or iPad source, almost instantaneous playback.