{"nhtsa_id":11030884,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-07","date":"2026-03-26","document_id":"No. 2603","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Instructions on advanced technical information for E3.II DME POD8500 Overvoltage During Catalytic Heating","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030884-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030884-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030884","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"CAYENNE","year_from":2024,"year_to":2025,"match":"exact","vehicle_ids":["2024_porsche_cayenne","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":[]}