Got that dang CHECK ABS light this morning. No idea where to start to troubleshoot. No work or changes made to the car. Just first start of the day and bingo, there it is. I drove the car and it does not seem to be adversely affected. Please reply with suggestions on how to resolve. 2008 GS350, 166k

 

If you have a scanner, scan it and see what codes pop up. If you dont have a scanner, some auto parts stores sell them or let you borrow them.

For the GS350 I wouldnt worry too much of it being expensive to repair. Could just be a bad wheel speed sensor