Steering and Braking issue

[MacG]

Hey All,

2007 es350. Wife states that twice now while taking different freeway exits that the car beeped three times, the headlight icon came on in the dash, the steering and brakes stiffened like they became manual for a short time. She states normal pedal height. I am thinking maybe vacuum for the brakes but I do not think PS is affected by vacuum. I doubt the engine died and restarted but now I wonder if it stumbled for a bit. Does this sound familiar to any of you?

Thanks!

[MacG]

I cleaned the wheel speed sensors tonight. There were some filings and general crud covering one of them.  Pretty sure this was the issue.  I followed the video below:

 

[RX400h]

Please let us know if after driving the car for a while, everything is back to normal.

Thanks!