Whenever I turn on or off the rear defrost it makes a clicking noise. Almost like an electrical relay or something. Is this normal? Anyone else's Z do the same thing?

 

mine does it think its normal

 

Yup, there's a relay in the back hatch area on the passenger side IIRC. The heater element actually draws a pretty good amount of power, rather than run it through the switch they run it directly to the relay. By switching the relay on/off it ultimately controls the power to the heater element.

 

very nomal.

That ticking under the seat however...that's a Homeland Security Issue...

 

Thanks guys. Glad to hear this is normal. I just noticed another thread on this that was posted recently . I swear I searched