{"nhtsa_id":631259,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-05-21","date":"2002-03-01","document_id":"020730011","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"SUBJECT REGARDING, 2001-2002 CHEVROLET AND GMC C/K PICKUP AND UTILITY MODELS, DIAGNOSTICS FOR POSSIBLE GEAR INDICATOR CONCERNS. *SLC","document":null,"url":"https://open.wenmarpro.com/bulletins/631259","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_chevrolet_silverado","2002_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_chevrolet_suburban","2002_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_chevrolet_tahoe","2002_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_gmc_sierra","2002_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2001,"year_to":2002,"match":"exact","vehicle_ids":["2001_gmc_yukon","2002_gmc_yukon"]}],"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":[]}