Your resistor is shot. There is a thing in the FAQs about this.
Anyways it is for 10 years or 100k, what your mileage?
If you have more than 100k
click here
The nice thing it is only $12 and you can fix it yourself in 10 minutes, it is located on the passanger side footwell, up near the firewall.
I think all there is to unbolt two bolts, one wire, install new one and your good to go.
