Good morning.
The ABS system has a fault with the light indicating on your dash. That code is stored and needs to be checked. A parts store can read it for you for free. Once we know that code, we can help narrow the area of failure for you. The most likely cause is the wheel speed sensors but that needs to be confirmed.
When the ABS is off line, the Trac and four wheel will also be off line. When the ABS system is repaired, they will come back on line.
Roy
https://www.2carpros.com/articles/abs-wheel-speed-sensor-test
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Thursday, May 31st, 2018 AT 6:15 AM