"Service Action: Program Control Units (CAS). After programming/coding the vehicle with ISTA/P 2.48.1 or earlier, the Car Access System (CAS) was incorrectly coded. This causes the anti-theft alarm system panic button on the remote control to not function. In order to determine whether a specific vehicle has had this Service Action completed or is affected by this Service Action, first check the B-pillar label for code number 637. If code number 637 has been punched out, the campaign has already been performed. If code number 637 has not been punched out, it will be necessary to utilize the ""Service Menu"" of DCSnet (Dealer Communication System) or the Key Reader. Based on the response of the system, either proceed with the corrective action or take no further action. Important Note: A campaign can be reserved in ISPA Light as ""Pending"" prior to submission of a claim. If you find this campaign reserved, please verify the reason before attempting to perform this repair."
