ABS Warning Light Always On - 2020 Jeep Grand Cherokee
The ABS warning light is constantly illuminated, indicating a fault in the anti-lock braking system. This may affect braking performance in slippery conditions but the base braking system should still function.
Diagnosis Details
Possible Causes
Faulty wheel speed sensor (most common on one wheel)
Damaged or corroded ABS tone ring or reluctor ring
ABS module failure or internal fault
Related OBD-II Codes
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What You Should Do
Have the ABS system scanned with a professional diagnostic tool to retrieve trouble codes.
Inspect wheel speed sensors and wiring for damage or corrosion.
Check ABS fuse and relay.
If codes point to a specific wheel, replace the sensor or tone ring as needed.
Related Repairs
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Disclaimer: This AI-generated diagnosis is for informational reference only. Always consult a qualified mechanic for an in-person inspection. AutOwner is not responsible for decisions made based on this information.