GMC Acadia persistent check engine light issue in cold weather with emissions code affecting auto start on GMC Acadia

Some GMC Acadia owners report experiencing persistent check engine light issues in cold weather, which may be triggered by engine strain and malfunctioning components due to low temperatures. These conditions can lead to the illumination of the check engine light, often associated with emissions codes that indicate problems within the emission control system. Additionally, some owners find that the check engine light affects the auto start feature, potentially linked to a high-pitched sound that drains the battery after engine shutdown. To address these issues, it is crucial for owners to identify the specific diagnostic trouble code associated with the emissions problem, consult a professional for an accurate diagnosis, and perform necessary repairs followed by a reset of the check engine light system.