Toyota recall the 2003 sequoia for the same thing.

Driving 70 on a Hwy (dry flat road), VSC and TRAC lights went off, alarm sounded, horrific grinding sound from front right side, truck viciously pulled right almost .

I have a 2002, but it looks like 2001 and 2002 have the same issue, symptoms.

Called NHTSA they have 117 complaints for the 2003 (it has been recalled) there are 78 complaints for 2002 (it has not been recalled.

Went to Toyota dealer yesterday. There is an internal Toyota memo that drastically discounts the CPU to fix the problem. They have been instructed to discount the part from $2100 to $700 (not including labor) Complete BS! Why would they discount a part by 2/3's? Because it is the same part as the already recalled 2003's

ANYONE WHO HAS A SEQUOIA NEED TO FILE A COMPLAINT WITH NHTSA!

I have seen more than 78 people online having problems with the same thing CALL NHTSA! Make Toyota pay for it they should of recalled all the cars with the defective unit.

By phone: 1-888-327-4236 Monday-Friday, 8:00AM to 8:00PM Eastern TTY: 1-888-424-9153 (Spanish-speaking operators available)

By e-mail: http://www-odi.nhtsa.dot.gov/contact.cfm

All these warning lights came on one day and not one thing (knock on wood) has resulted from these lights. Meaning no problems with the breaks from what I can tell. The traction control may not work but where I live I rarely use it. I've read a huge number of forums on this and it seems to be an issue that many many people have had to deal with. The majority of the time it appears that there isn't an actual problem with any of the items being warned about but rather the VSC computer system being faulty. No codes are pulled up when a diagnostic is done. Price to replace this ranges from $2500 to $4000. Since my car is 10 years old and has over 150,000 miles on it I don't think I'll be spending that kind of money to replace a faulty computer, especially since I am not the only one out there.

Not looking forward to that month (you know state inspection month). That should be a joy to try to explain or deal with.

Update from Nov 29, 2011: Started my Sequoia one day and the TRAC warning light, ABS warning light, Check Engine Light and some other light (can't recall right now) came on and has stayed on ever since. I've done alot of checking online about this and even though it's not mentioned much on this website there are 100's of forums regarding this very problem and ones very similar. Apparently this has occurred on a number of Sequoia's and not only just 2002 model or any particular mileage. It can range from a major brake problem to a major pain in the neck (huge cost) car computer system problem. There are enough of these complaints that Toyota has to be aware of it (from what I've read) refuses to do anything as the cost to remedy the problem would not be cost effective. Meaning there are a large number of Sequoias of all years and mileages that have this problem. The problem with this thought process is that (like I said) it can be a major brake problem and therefore a big danger to the driver. Just going off what the forums have said.

Apparently the issue can REALLY be an issue with the brakes, either loosing brake fluid, a cracked hose, or some other piece of equipment that is malfunctioning. The other possibility (one that I've seen numerous discussions about) is the car's computer system malfunctioning and initiating these codes. The problem is there is no way of knowing which part is the problem or how severe it is. If you hook up a diagnostic reader there are no codes that come up. The computer problem requires the replacement of the computer part and ranges in cost from $1800 to $2500 (just part) plus labor.

In my case it doesn't appear to be an actual brake problem (I don't believe, knock on wood, pray to the good Lord) so I suspect it's a computer issue. I don't have $2k+ to replace a computer, especially in this economy so right now I have to drive around with these lights on. This becomes REALLY interesting if it comes time for car inspection. Since there is no recall for it the inspectors can't just go off what you tell them about it being a computer issue and therefore you fail. Not something that can be put off indefinitely.

IF YOU GET THESE LIGHTS DON'T ASSUME IT'S A COMPUTER ISSUE AND CAN BE IGNORED. TAKE IT SERIOUSLY AND MAKE SURE YOUR BRAKES ARE WORKING CORRECTLY. DON'T BLOW IT OFF!