Service advance trac light turns on?

GINGER4123

MEMBER
2015 FORD FUSION
AUTOMATIC
150,000 MILES

Service advance trac light comes on along with all the other dash lights. Sometimes it stays on for a few seconds, sometimes it stays on for the whole ride. Sometimes after that light comes on follows “hillside assist off”. When these lights come on it makes steering difficult as if the power steering turned off. Then sometimes it will make almost a grinding sound, and the brakes will be springy. It’s very inconsistent and also random but seems to be happening more and more lately.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,536 POSTS

It sounds like the ABS system is being activated. together with the traction control light is telling me you may have a front ABS wheel speed sensor that is going out, lets run the ABS codes to see which ones are stored so we can pinpoint the problem, this guide can help:

https://www.2carpros.com/articles/anti-lock-system-testing-and-repair-abs

Here is how to change out the ABS wheel speed sensor in case you need it, also I have seen the bearing hub go out and cause this problem as well, do you hear any slight grinding noises when driving without using the brakes? Check out the images (below). Please upload pictures or videos in your response of any problems so we can see what to help you with.

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