Turns out it is an Invision product. I contacted the original dealer who confirmed that it was put on at the time of purchase - part of a GM promotion and thus is covered under the factory warranty. Funny thing is the dealer gave me the Vizualogic name and number for my local dealer to obtain the parts even though it's an Invision.
The control module is on order and will hopefully be resolved soon.
As you guys suggested they are on ebay - here's an example
http://cgi.ebay.com/ebaymotors/ws/eB...#ht_500wt_1115
THANKS for the comments.