what is the box for under my drivers seat as well as my passengers seat for? there are 3 plugs attached to this box. im guessing one is a sensor for your seatbelt but im not sure what the other 2 are for. and why is this box so big??

 

I highly recommend to ask the nearest dealership in your area to give you exact explanation. That's free and no charge fee.

 

I know this thread is old and just woken...but DO NOT make a trip to a dealer to answer this question. If you are there getting real work done, fine ask the question.

Dealership mechanics work flat rate and its a waste of their time to be pulled off jobs for trivia. Any one here like working for free?

 

I know this is an old topic, but I was searching myself and finally know what the box is: TELEMATICS COMMUNICATION INTERFACE CONTROL MODULE, per the service manual. It handles the voice calls for you radio.