{"nhtsa_id":10037927,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-06-08","date":"2011-12-01","document_id":"PI-0350","mfr_campaign":null,"replaces":"PI-0350-D","component":"POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT","mfr_system":null,"summary":"GM: THERE IS A GEAR WHINE FROM THE REAR WHEN DRIVING 30-60MPH. *RM UPDATED ON 6/15/2011. *KB UPDATED 8/1/11. *PE UPDATED 3/12/12. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10037927","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"differential","name":"Differential","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"CTS","year_from":2011,"year_to":2011,"match":"exact","vehicle_ids":["2011_cadillac_cts"]}],"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":[]}