A steady ABS light on your GMC Terrain usually points to a wheel speed sensor or its wiring.
Here’s what to check first and when it’s still safe to drive.
What a Steady ABS Light Means on Your GMC Terrain III
When the ABS light stays on continuously, the ABS module has set a fault code and disabled anti-lock braking. Your standard hydraulic brakes should still work, so the car may feel normal in everyday driving. But the system that helps you steer and stop during panic braking is offline, and traction control or stability control may also be disabled. On a GMC Terrain III, the most common culprit is a wheel speed sensor or the wiring that connects it to the ABS module.
