ABS AND BRAKE LIGHT on 2001 Chevrolet Suburban 1500

I HAVE A 2001 SUBURBAN AND RECENTLY THE ABS AND BRAKE LIGHT CAME ON. WHAT DOES THAT MEAN????

Asked by for the 2001 Chevrolet Suburban 1500
abs module under car on left side is bad-can be rebuilt
1 more answer
I.m not a machanic. Possible your front sensors are dirty. My 2001 the brakes would shutter under 10 mph and stop shuttering at 2-3 mph. There was a recall. My truck was fixed back then so they refuse to repair it again.When the abs and brake lights are on it stopped shuttering.