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First thing you should do is to have the codes checked, most auto supply stores will do this for free. A good chance of the code is a wheel speed sensor is worn or bad. Another item you can check is to make sure all the tires are the same size. For example, if you have changed 2 tires and still have 2 older tires on the vehicle this would cause the ABS light to come on do to the fact that the rolling radius of the tires is different, the computer sees this different speeds and tries to correct this and cant and turns the light on to indicate a problem. I hope this helps. If you have anymore questions please email us again. If this info is helpful please remember to click the accept button. Thank you.