Engine knock when idle
I have a 2021 GX460 with 1UR-FE engine. I notice when car is idle and there is a knocking noise from the engine. I don’t know if it’s normal. Car has 1500 miles.
It sounds like”tick, tick, tick, tick” not very obvious but enough for me to hear it. I heard it inside of my car.
Agree with @Glen_stet. Keep taking it to the dealer and force them to fix it. That GX460 should not be making a ticking noise. If that dealer can't fix it, take it to another one. Also, if you know a trusted mechanic, have him/her check out the GX and give you some kind of report in writing. Then, take that with you to the dealer and show them.