{"nhtsa_id":10165438,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-09-30","date":"2019-08-06","document_id":"N192222301","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"N192222301 - Service Update Bulletin. Certain vehicles, equipped with a single speed transfer case (RPO NP0) or 2-speed transfer case (RPO NQH), may have a condition in which the transfer case could leak oil if the vehicle is operated frequently with the transfer case in Auto or 4HI. The oil leak could lead to abnormal clutch operation. Dealers are to replace the front output shaft seal.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10165438-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10165438-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10165438","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"axle","name":"Axle","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_gmc_sierra"]}],"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":[]}