What is a Seat Heater Switch?
Heated seats are an option in some cars, trucks, and SUVs that allow the front seats to be warmed in cool climates. Occupants can enable one or more heating elements inside the seat cushions by way of the seat heater switch. This switch may be mounted in the center console of the vehicle, in the front door trim panels, or in the climate control center located in the dashboard.
How does a Seat Heater Switch work?
When the seat heater switch is turned on, it sends a low voltage signal to actuate a relay that powers the seat heater element. The seat heater 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. The seat heater switch may enable one or more heat settings.
What are the symptoms of a bad Seat Heater Switch?
While the most common problem with heated seats is an inoperative seat heater element (often due to a break in the thin wires that make up the heating element under the seat cover), a bad seat heater switch can also be at fault. Other complaints include a switch that works intermittently, comes on by itself, or turns on momentarily before switching itself off. 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 Switch?
A seat heater that does not work properly is not usually 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.