Hyundai Santa Fe engine light illuminated due to gas cap sensor malfunction on Hyundai Santa Fe

Some Hyundai Santa Fe owners report experiencing issues with the check engine light illuminating due to a gas cap sensor malfunction. This can often be triggered by a loose or damaged gas cap, which is a common problem in these models. A steady check engine light may indicate not only a loose or missing gas cap but also other potential issues such as a faulty oxygen sensor, damaged catalytic converter, faulty mass air-flow sensor, or a cylinder misfire. Ignoring this gas cap sensor malfunction could lead to more serious engine problems and costly repairs. The check engine light serves as a warning for malfunctions in the emission control system, and it is recommended that owners have the issue diagnosed and repaired by a professional to ensure their vehicle functions properly.