Cadillac CT6 check engine light on, suspect emission issue with unspecified diagnostic problem on Cadillac CT6

Some Cadillac CT6 owners report experiencing issues with the check engine light, which can be triggered by a faulty oxygen sensor or other emissions system problems. Symptoms associated with this warning may include decreased fuel mileage, engine hesitation or misfiring, and rough idling. Additionally, some owners note that ignoring a flashing check engine light can indicate a serious problem, such as a catastrophic misfire that risks damaging the catalytic converter and other engine components. It is crucial for owners to address any check engine light issues promptly to prevent further damage and ensure the proper functioning of their Cadillac CT6. For unresolved emission issues, it is advisable to have the vehicle inspected by a qualified mechanic or dealership.