Cadillac ATS check engine light is on on Cadillac ATS

Some Cadillac ATS owners report experiencing issues when the check engine light illuminates, indicating a problem with the engine or emissions system. This warning light serves to alert drivers to various engine problems, with some vehicles displaying yellow for minor issues and red for more serious concerns. Ignoring the check engine light can lead to more severe problems and costly repairs. Additionally, Cadillac owners can use tools like the YOUCANIC Full System Scanner to read and clear the check engine light at home, helping to identify the underlying issue. Trouble codes associated with the check engine light can vary, with some being specific to Cadillac and others having universal meanings across different makes. It is advisable for owners to address the check engine light promptly to avoid potential complications and ensure their vehicle operates correctly.