What do LO and HI mean in seat heating?
2 Answers
Seat heating LO refers to low-level heating, while seat heating HI refers to high-level heating. Seat heating utilizes electric heating wires inside the seat to warm the interior of the seat and transfers heat to the occupant through thermal conduction, improving the discomfort caused by the seat being too cold after prolonged parking in winter. The basic structure of a seat heater is as follows: the bottom layer is a non-woven fabric, heating wires are arranged on the non-woven fabric and fixed with adhesive tape, a knitted fabric covers the adhesive tape, and is sewn with knitting thread into a shape similar to the heated area of the seat and stitched inside the seat cover.
I often use the seat heating function while driving, where 'lo' and 'hi' actually refer to different settings of heating intensity. 'lo' stands for 'low,' representing the low setting, which provides gentle heating with lower current, suitable for the slight chill in spring and autumn or when you first start driving—keeping you warm without being too hot. 'hi' stands for 'high,' offering stronger heating with higher current and faster temperature rise, perfect for those freezing winter mornings when you turn it on and feel warmth on your back immediately. The seat heating function generally works through heating resistor wires inside the seat, with small circuits inside the vehicle controlling the current size and temperature sensors to prevent overheating. From my experience, the switching sequence is important: don’t turn on 'hi' directly when the car is cold; try 'lo' for a few minutes first and then adjust upwards to avoid overheating risks while also protecting the car’s circuits and saving power. Using 'hi' for long periods may consume more fuel, so during long highway drives, combining it with air conditioning for temperature adjustment can be more comfortable. Therefore, I always choose the setting flexibly based on the day’s weather to ensure both comfort and energy efficiency.