Acura TSX fuel cap and emission lights on despite dealer's reset recommendation on Acura TSX

Some Acura TSX owners report experiencing persistent "check fuel cap" and "check emissions system" warning lights, even after following dealer reset recommendations. These issues are often attributed to a missing, loose, or damaged fuel cap, which is the most common cause of the "check fuel cap" light. Additionally, the "check emissions system" light may indicate problems such as a defective emissions control system (EVAP), or faults within the EVAP system, including damaged lines or faulty gas caps. To address these warning lights, owners are advised to ensure the fuel cap is securely tightened according to manufacturer guidelines, inspect the cap for visible damage, and have the EVAP system checked by a qualified mechanic. If the warning lights persist despite these efforts, consulting a trusted mechanic or dealership for a comprehensive diagnosis is recommended.