{"nhtsa_id":11030863,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-06","date":"2026-03-16","document_id":"No. 42-25","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"summary":"Symptom based workshop manual for a Malfunction Indicator Light in Instrument Cluster Intermittently Active / Fault Memory Entry Regarding Supply Voltage for Catalytic Converter Heating \"P0D8500\" in DME Control Unit","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030863-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030863-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030863","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P0D85"],"topics":[],"vehicles":[{"make":"PORSCHE","model":"CAYENNE TURBO GT","year_from":2024,"year_to":2024,"match":"base","vehicle_ids":["2024_porsche_cayenne"]},{"make":"PORSCHE","model":"CAYENNE TURBO GT COUPE","year_from":2025,"year_to":2025,"match":"base","vehicle_ids":["2025_porsche_cayenne"]}],"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":[]}