What is a Seat Heater?
Heated seats are an option in some cars, trucks, and SUVs that allow the front seats to be warmed in cool climates. Occupants can switch on a heating element that warms the seat cushions. The seat heater is the element inside the seat that produces the heat.
How does a Seat Heater work?
When the seat heater switch is turned on, voltage is supplied to the heating element (the seat heater) which provides resistance against the electrical current and produces heat - similar to the way a toaster works. The wires of the seat heater are laced back and forth across the seat cushions underneath the seat cover in order to distribute the heat evenly across the surface of the seat. A sensor is used to measure and regulate the temperature of the seat heater. A control module may be employed to aid in temperature control. And some vehicles have a built-in timer to shut the heater off.
What are the symptoms of a bad Seat Heater?
The most common problem with heated seats is a heater that will not turn on. When the switch is engaged, heat does not build up in the heating element. The wires that make up the seat heater are very thin and prone to wear and breakage over time. Because of this, the most common cause of a heated seat that does not work is a faulty seat heater element. But it can also be the result of a simpler problem: a faulty switch, a corroded electrical connection, or a blown fuse. Some drivers complain that the heater becomes too hot. In some cases, a malfunction in the seat heater can cause the heating element temperature to rise too high, causing burns to the occupant.
Can I drive with a bad Seat Heater?
A seat heater that does not work at all is not a cause for concern. In most cases it simply will not work. If a short circuit is the cause, though, damage to sensitive components in the electrical system could result. A seat heater that is malfunctioning and does not regulate the temperature properly can get too hot and cause burns to the occupant. This condition should be checked and repaired as soon as possible.