what would cause " service brake assist and traction control lights go on when I hit a bump. Thank You

Asked by Mar 28, 2017 at 03:17 PM about the 2009 Buick Lucerne CXL1 FWD

Question type: Maintenance & Repair

1 Answer

1,620

While there are lots of things associated the the brakes and traction control, you probably have a problem with one of the wheel sensors.....this tells the traction control if and how fast the wheel is turning.

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