The heating elements are either timed or have a thermostat, and they will turn off when they want to. Overheating shouldn't be a concern, there's temp sensor to keep it in check. The cover does make the heater work much slower, maybe some minutes. So long as the seat doesn't have too high of a temperature, it shouldn't impact your seat cover. Heated seats include a thermostat that, much like how the thermostat in your house works, will heat the seat to the ideal temperature before turning off, then restart once the seats begin cooling off. It's not a major difference, however, and won't severely impact how effective the heated seats are. The only thing you might notice is that the seats heat up more slowly or become less hot with seat covers on. In fact, many customers will have this concern before purchasing a seat cover.We can make a test, Just like anything that comes between you and a hot object, seat covers will slightly affect the effectiveness of your heated seat system-but you may not even notice. Simply giving yes and no is not a testable answer.
