I have a 2005 Lexus GS 300, My check engine lite with the traction came on. What does that mean? My ex used regular gas instead of premium, does that have something to do with it?

 

until you get the code read. All you will receive here are guesses, or comments telling you to get the code read.

 

A wheel speed sensor seems to be a very common cause of this issue on these cars. To be sure you needs to have a ABS capable code reader (scanner) hooked up to your car. This will give you one or more DTC's (diagnostic trouble codes) which we can then use to point you in the right direction for troubleshooting and repairing the issue.

 

Check and Check

 

go check the codes, post up the numbers here.

 

It could be a number of things. We need the codes to give you informed feedback. Take it to AZ O'reillys, Pep Boys, Advanced, NAPA, somebody who will pull the codes for you. Bring them back to this forum and let's talk about them. These cars have a grade of gas recommended by the manufacturer. However because of the VVt-i timing it will adjust to run with any qas within certain octane limits with no issues. I don't think the regular gas is the issue.

 

What symptoms are you noticing? How does the car feel since the lights coming on?