Hi everyone,
Firstly: thank you for the suggestions ! Really great to read your ideas on this problem.
I finally got the car to mechanic and asked him to change/flush the brake fluid...he did and so far...no unexpected TRAC light occurences. He did scan for codes and found a 45 for primary throttle position sensor (tps), 51 for engine control module (ecu)...but, my ck engine light never comes on and a 19 found on the right side of the ABS I believe he said...he has nothing for this code ! Does anyone know what this is for ? He did say IF the light came on I would have to go to Lexus for repairs. So, I am keeping my fingers crossed at this point but the brake fluid change, which he said should be done every 2-3 yrs, has been a good thing. Thanks again, will keep reading and writing.