{"nhtsa_id":10245450,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2023-11-27","date":"2023-10-05","document_id":"T-SB-0075-23","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"TSB: Some 2021 ? 2024 model year 4Runner vehicles may exhibit a cyclic growl/groan noise from the front of the vehicle while driving in 2WD at around 30 ? 50 mph (48 ? 80 kph). The noise subsides when the vehicle is put into 4WD. This condition may be more prominent in colder temperatures. Follow the Repair Procedure in this bulletin to address this condition.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10245450-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2023/MC-10245450-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10245450","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"TOYOTA","model":"4RUNNER","year_from":2021,"year_to":2024,"match":"exact","vehicle_ids":["2021_toyota_4runner","2022_toyota_4runner","2023_toyota_4runner","2024_toyota_4runner"]}],"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":[]}