{"nhtsa_id":11030923,"type":"service_campaign","type_name":"Service campaign","date_added":"2026-04-07","date":"2026-03-12","document_id":"RCA-26-26-001-1","mfr_campaign":"FSAM-1735","replaces":null,"component":"ENGINE","mfr_system":null,"summary":"Rivian is initiating a customer satisfaction campaign for some model year 2025 R1T and R1S vehicles that are susceptible to water contaminating the refrigerant system. Water contamination may cause premature failure of some refrigerant system components or, in some cases, cause a loss of HV isolation. A loss of HV isolation could cause the vehicle to enter a reduced performance safe state mode, and a \"Limited Performance Mode\" indicator light to illuminate on the driver display. Rivian will inspect the refrigerant system for water contamination and, if necessary, replace affected refrigerant system components. Rivian is launching this campaign for customer satisfaction and to ensure the quality of Rivian vehicles.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030923-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030923-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030923","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"RIVIAN","model":"R1S","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_rivian_r1s"]},{"make":"RIVIAN","model":"R1T","year_from":2025,"year_to":2025,"match":"exact","vehicle_ids":["2025_rivian_r1t"]}],"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":[]}