Ryhthmic Brake noise? Heat shield?

You are unlikely to feel a bad rotor through the pedal because its brake by wire. Even then, the hydraulic brakes may only be used at very low speeds under gentle braking. Hard braking will apply the hydraulics at speed. But its possible that frequent hard braking could have warped the rotors. Have somebody check the rotors for warping. If bad, you have to buy new rotors. However my v has 240k and still has factory pads and rotors because of regen and reasonable braking most of the time.

I would bleed the brakes using “invalid” mode or Techstream. If the problems go away great, if they come back in a day or two there could be a brake booster pump or master cylinder problem.

Rattles at startup usually means the engine is not synchronizing with the electric motors in order to make the planetary gears work. There is a mechanical clutch like assembly in the transaxle that is always engaged but will slip under sync failure modes. Its possible that ignition or fuel is causing it but those problems usually continue. Pcv feeding oil into the intake can do it, as well as a failing head gasket. Its also possible to get engine knocking with regular gas, a carboned up engine and low hv battery charge. Try a tank of high octane to see if this is the case.

 

Better trade it in before the really bad stuff happens.....

 

Probably not bad advice if you can get close to Blue Book for it. Besides anyone on Cape Cod Beachfront probably should be driving a late model Lexus.

 

Late model Lexus 4WD, that never leaves the pavement.

 

The oversized rims give that away.

If not that, I'm pretty sure in the owners manual somewhere I read in our 2017 RX that they recommend not taking it off the engineered surfaces.

With how thin the paint is, I'm not sure I'd want to anyway.

 

Rust edge...I don't think that is your issue.
Wear edge could be.

Was the issue there before your new tires?

I'd guess the first step is to visually inspect the rotors, are they smooth?
If not, a rotor change or machining could resolve the issue.
If smooth, could be a glaze build up on the rotors, do a 'net search how to de-glaze.
Also, cleanliness of you calipers is a good thing, so remove all the brake dust from the rim barrels and the caliper pistons etc.
Further, reapply brake grease to the pins and pads (as the service manual specifies) is a good thing.
Lastly, I have read the pins have wear issues, so an inspection and replacement could be "called for".

Yes, I would do the hard braking bedding procedure. (75 mph to 45 mph engaging abs - six or so times taking care to cool the rotors between each hard stop).

I have no two cent comment on your rattle.
Rattle searching can be a trying experience.

Good luck.

 

Great info! Seems like pretty low miles for wear problems.. I wonder if this could be corrosion related... never really see any here in south east texas.

 

Have you rotated the tires?

 

I had a brand new Mich that was bad.... pulled.....I couldn't believe it was the tire but I put the front on back and the pull was gone.

 

Ask the tire place to road check with you. Or maybe for you given the situation currently. When was the last time the car's alignment was checked? Seeing you live in the NE area where roads can be .....

 

I took the hubcaps off soon after i got the v. Bought center caps online.