{"nhtsa_id":11032907,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-05-23","date":"2026-05-23","document_id":"TSB_CHA128_CLSD","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":"CHA","summary":"TECHNICAL SERVICE BULLETIN: 4WD COUPLING NOISE/VIBRATION LOGIC IMPROVEMENT) - CLOSED & SUPERSEDED BY CHA129 - This bulletin is now closed and superseded by CHA129. This bulletin provides information to upgrade the 4-Wheel Drive ‘4WD’ system software on certain 2020-2022MY Telluride (ON) vehicles produced from January 09, 2019 through September 01, 2022. The affected vehicles may exhibit a noise and/or a vibration, shudder, jerking, binding, or chattering while turning at low speeds (10MPH – 15MPH) located from the 4WD coupling caused by a decrease in the oil friction of the 4WD coupling due to continuous vehicle operation in harsh conditions (high/low ambient temperatures, long time/distance traveling).","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032907-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11032907-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11032907","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"KIA","model":"TELLURIDE","year_from":2020,"year_to":2022,"match":"exact","vehicle_ids":["2020_kia_telluride","2021_kia_telluride","2022_kia_telluride"]}],"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":[]}