{"nhtsa_id":10127491,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-01-29","date":"2017-12-12","document_id":"122-E9N4X-01","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:SOFTWARE","mfr_system":null,"summary":"Optimized software for Porsche Communication Management (PCM) 4.0 has been used in standard production in order to further improve the general performance of the system. These optimizations must be implemented retrospectively even for vehicles manufactured before the date of introduction. Action Required: ? Update PCM software using an SD card ? Re-code the PCM using PIWIS Tester test software version 34.800.030 (or higher","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10127491-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10127491-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10127491","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"software","name":"Software","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"718 BOXSTER","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_porsche_718-boxster"]},{"make":"PORSCHE","model":"911","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_porsche_911"]},{"make":"PORSCHE","model":"CAYENNE","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_porsche_cayenne"]},{"make":"PORSCHE","model":"MACAN","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_porsche_macan"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}