VscTrac/Vsc Off and check engine light comes on

That answer is absolutely no help to anyone except someone who can’t read an owners manual. Hopefully someone will have a legitimate answer to the question.

My car actually started vibrating while I'm driving, as if it was trying to gain control, yet I was going straight. It's scary & it's more than just the lights going on and off.

The VSC light keeps coming on in my 2001 Toyota Sequoia. The first time it was the rear brakes and brake caliber. Then it was the sway bar links, which were just replaced. A week later it's back on and sometimes does this weird thing (like bumping) when applying the brakes. After sitting for 4 days while I was out of town, the light is now off again. Does anyone know what else could cause it to come on? The traction light is not coming on with it this time.

Coils or/and spark plug could be faulty bcoz of which one or more cylinders stop working. This leads to shaking and also more consumption of fuel. I drove my car over few days for few hundred kilometres hoping that problem would self rectify before taking it to the mechanic. I changed 3 coils with scrap coils from a corolla model and paid around USD 50 for it including the labour cost. The car works beautifully now.

Sublime- Was this shaking associated with the acv or Trac on/off light?

If the car is shaking definitely coils need to be replaced. But also ensure that the inside wiring is good bcox otherwise it will keep showing error.

Check your brake fluid level. It is likely completely FULL and over the MAX fill line. I had similar issue when my "brake" warning light came on (thought it was my parking brake) and the VSC lights flickered and my brakes somewhat pumped like the anti-lock braking system engaged for a split second. Very dangerous situation. I used a clean absorbent rag and removed the overage of brake fluid and my truck (Toyota Seq SR5 2004 w/ 4WD) is now save to drive.

I had put new brakes on my front and rear in the last 6 months and the temperatures going from 90's to 70's likely impacted the brake fluid levels as well. So did you have any work done on your brakes in the last 3-9 months? If so, that is likely the issue. Good luck.

Far more helpful answers can be found here: https://www.cargurus.com/Cars/Discussion- t18324_ds709643