TRAC OFF, VSC, and check engine lights are on in my 2004 Lexus ES 330

Try to look for any electrical fuse problem in your car... from there you can do a visual check in all of your fuse... if it is busted get some expert to help you out... remmember don't do anything if you are not sure about it

Hello, the reason for the vsc light to turn on is that the check engine light came on first causing the vsc system to become disabled, this is normal, once the cause of the check engine light is fixed the other lights will turn off. You'll need to find out the diagnostic codes that caused the check engine light to turn on first, most auto parts stores like autozone, pep boys, o reilly can help you with getting those codes from the computer and they do this for free in most US states, when you have the code numbers you can reply if necessary and I can advise as to what should be done.

Hi Jason Sound as if the fault detection has recorded a fault in the transmission. take it and have an electronic scan carried out and have the fault pin pointed. Regards Johngee10

Most of the time the VSC light will come on with check engine and trac off light. (picture of veh with squiggle lines behind it) Whatever triggers a Check eng turns the vsc and trac systems off. could be a loose gas cap or something related to emissions system. Most times it will have to be diagnosed. Veh maybe equipped to turn vsc off, there would be a button for it.

Whenever the check engine light comes on it also turns on the trac and the vsc, if figures the trac and vsc can not operate properly if the engine is not running correctly, when check eng light turns off the rest will also, the first thing to do is have the computer scanned, there will be stored codes, these codes will tell you where the problem is, many auto part stores will scan it and give you the codes, if you get the codes i could help you further good luck.

take it to a autoparts store neer you and they will tell you the problem and they will reset you computer

disconect the batery ground for 30 minutes and it will reset the computer

Read my GX post from today... same issue, loose gas cap or fouled sensors 95% of the time....

VSC is Vehicle Stability Control. This is and electronic sensing which monitors and combines performance of braking, wheel slippage and handling, ect.
If this light comes on along with check engine light, it can be caused by a loose gas cap or faulty o2 sensor.

need to scan computer before you do anything else.