Need a little direction. I have a 2007 Tahoe LT factory - After a lightning storm, the next day the remote start and TPMS stopped responding. Did a little reading and my conclusion is that the module burnt out or was otherwise affected by the storm. What I cant figure out is exact location of this part. The dealership quoted me around $1800 for diagnostic parts and labor. As much as I like burning money, would like to try my hand at it. I know it will need reprogrammed, no worries there. Can anyone tell me where the module is?