GMC\CHEVROLET SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. MATERIAL OVER SENSING & DIAGNOSTIC MODULE RETAINING MOISTURE. VEHICLES MAY HAVE A CONDITION WHERE AN ELECTRONIC COMPONENT LOCATED BENEATH THE DRIVER'S SEAT MAY CORRODE DUE TO A SIGNIFICANT QUANTITY OF SNOW AND/OR WATER CONTAINING ROAD SALT OR OTHER CONTAMINANTS ENTERING THE VEHICLE AND SATURATING THE ACOUSTICAL PADDING BENEATH THE CARPET. CSC LETTER WAS RECEIVED. *PE UPDATED 4/7/15. *PE
