The main reasons why car seat covers are not recommended include safety hazards, functional limitations, and material issues. First, fully-enclosed seat covers may block the side airbags of the seats (usually marked "AIRBAG"), preventing the airbags from deploying properly in the event of a collision and increasing the risk of injury to occupants. Second, if the vehicle is equipped with leather seats or ventilation/heating functions, seat covers will hinder the breathability and temperature control of the original materials. In addition, low-quality seat covers (such as synthetic fibre or formaldehyde-containing faux leather) may release harmful gases, or cause passengers to slide during sudden braking due to inadequate anti-slip design. For fabric seats, semi-enclosed seat covers can be chosen for easy cleaning, but airbag locations should be avoided and breathable materials such as cotton or linen should be prioritized. Regular cleaning (e.g., using specialized leather care products for leather seats and vacuuming for fabric seats) offers a better balance between protection and practicality than installing seat covers.
