{"nhtsa_id":634879,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-10-10","date":"2002-06-01","document_id":"020399001","mfr_campaign":null,"replaces":null,"component":"SUSPENSION","mfr_system":null,"summary":"CONCERNS WITH REAR OF VEHICLE SITTING LOW, ELECTRONIC CONTROLLED AIR SUSPENSION (CEAS) COMPRESSOR RUNS - WILL NOT LIFT REAR TO OPERATING HEIGHT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/634879","components":[{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"ENVOY","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_gmc_envoy"]},{"make":"OLDSMOBILE","model":"BRAVADA","year_from":2002,"year_to":2002,"match":"exact","vehicle_ids":["2002_oldsmobile_bravada"]}],"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":[]}