{"nhtsa_id":11037830,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-10-02","date":"2026-09-23","document_id":"No. 72-26","mfr_campaign":null,"replaces":null,"component":"ENGINE; POWER TRAIN","mfr_system":null,"summary":"Symptom-based workshop manual for High-Pitched “Whining” and Whistling Noises in Partial Load Operation from the Engine Area. Note that this bulletin covers only 911 GTS t-hybrid models.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037830-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11037830-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11037830","components":[{"id":"engine","name":"Engine","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_porsche_911","2026_porsche_911"]}],"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":[]}