Heated seats are a boon and a must-have for owners living in chilly climates. But as the owner of a 2018 Mazda 6 alleges, the comfort feature can also bring unexpected pain. A new lawsuit, filed in the Superior Court of California, County of San Francisco earlier this month, claims that plaintiff Kristine Dyvad “suffered serious burns and scarring as a result of her use of the defective seat warmer in her Mazda vehicle.”