{"nhtsa_id":10238350,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-06-30","date":"2023-06-08","document_id":"23-01-052H","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"This bulletin provides information related to the cleaning of the cooling system and coolant change to address the following problem: • “Refill Inverter Coolant” warning light displayed on the cluster • No DTC’s present • Normal level of coolant in Inverter Reservoir Tank • Measured EWP Speed > 2,800 RPM The cause of the warning light is due to increased EWP Speed due to poor flow of coolant inside the cooling circuit. The coolant in the system will be discharged and any foreign substances in the circuit will be flushed out with new coolant added in the end. A new reservoir cap label will be added.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238350-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10238350-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10238350","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"HYUNDAI","model":"SANTA FE HYBRID","year_from":2021,"year_to":2022,"match":"base","vehicle_ids":["2021_hyundai_santa-fe","2022_hyundai_santa-fe"]},{"make":"HYUNDAI","model":"TUCSON HYBRID","year_from":2022,"year_to":2022,"match":"base","vehicle_ids":["2022_hyundai_tucson"]}],"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":[]}