Chery Tiggo 8 Pro ABS Light On: Wheel Speed Sensor or Worse?

If the ABS warning light on your Chery Tiggo 8 Pro stays on continuously, it is usually telling you the ABS system has found a fault and has switched itself off. Your normal brakes should still work, but you lose the anti-lock and often traction/stability assist, so the car may feel less secure in wet, icy, or emergency braking. The good news: on this model, a wheel speed sensor fault is one of the most common and most straightforward causes.

Most likely causes

The ABS module needs a clean speed signal from each wheel. Anything that interrupts that signal can trigger the light. Common culprits include:

• Wheel speed sensor — dirty, damaged, or failed, especially after potholes, mud, or brake work.
• Wiring or connector — chafed harness, corrosion, or a loose plug near the wheel arch.
• Tone ring or magnetic encoder — damaged or contaminated ring on the hub/bearing assembly.
• ABS module or fuse — less common, but possible if power, ground, or internal electronics fail.
• Low battery voltage — a weak battery can set multiple warning lights, including ABS.

What to check first

Start with an ABS-capable scan tool, not just a generic engine-code reader. Read the stored codes and live wheel-speed data while slowly driving. A sensor dropping to zero or reading a different speed than the others is a strong clue. Then inspect:

• The sensor and connector at the suspect wheel for dirt, damage, or corrosion.
• The wiring loom for rub marks, especially around suspension and steering movement.
• The tone ring/encoder for cracks, missing teeth, or metal debris.
• Battery voltage and ABS fuses before replacing expensive parts.

Is it safe to drive?

If only the amber ABS light is on, and the red brake warning light is off, the pedal feels normal, and the fluid level is correct, you can usually drive carefully to a workshop. Just remember ABS is not working, so leave extra distance and avoid hard braking, especially in rain or on loose surfaces. If the red brake light is also on, the pedal is soft or sinks, or you hear grinding, stop driving and have the Tiggo towed — that points to a more serious brake fault.

This material is AI-generated and for informational purposes only — it does not replace an in-person diagnosis by a qualified mechanic.