{"nhtsa_id":10000171,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2003-02-14","date":"2002-10-01","document_id":"020522004B","mfr_campaign":null,"replaces":"020522004A","component":"EXTERIOR LIGHTING:BRAKE LIGHTS; SERVICE BRAKES, HYDRAULIC","mfr_system":null,"summary":"TRAILER BRAKES APPLIED WHEN HEADLIGHTS / PARK LAMPS ARE ON, BRAKE CONTROLLER ILLUMINATION. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10000171","components":[{"id":"brakes","name":"Brakes","parent":null},{"id":"lighting","name":"Lighting","parent":null},{"id":"brake-light","name":"Brake lights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"CADILLAC","model":"ESCALADE","year_from":2002,"year_to":2003,"match":"exact","vehicle_ids":["2002_cadillac_escalade","2003_cadillac_escalade"]},{"make":"CHEVROLET","model":"AVALANCHE","year_from":2002,"year_to":2003,"match":"exact","vehicle_ids":["2002_chevrolet_avalanche","2003_chevrolet_avalanche"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":1999,"year_to":2003,"match":"exact","vehicle_ids":["1999_chevrolet_silverado","2000_chevrolet_silverado","2001_chevrolet_silverado","2002_chevrolet_silverado","2003_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2000,"year_to":2003,"match":"exact","vehicle_ids":["2000_chevrolet_suburban","2001_chevrolet_suburban","2002_chevrolet_suburban","2003_chevrolet_suburban"]},{"make":"CHEVROLET","model":"TAHOE","year_from":2000,"year_to":2003,"match":"exact","vehicle_ids":["2000_chevrolet_tahoe","2001_chevrolet_tahoe","2002_chevrolet_tahoe","2003_chevrolet_tahoe"]},{"make":"GMC","model":"SIERRA","year_from":1999,"year_to":2003,"match":"exact","vehicle_ids":["1999_gmc_sierra","2000_gmc_sierra","2001_gmc_sierra","2002_gmc_sierra","2003_gmc_sierra"]},{"make":"GMC","model":"YUKON","year_from":2000,"year_to":2003,"match":"exact","vehicle_ids":["2000_gmc_yukon","2001_gmc_yukon","2002_gmc_yukon","2003_gmc_yukon"]},{"make":"HUMMER","model":"H2","year_from":2003,"year_to":2003,"match":"exact","vehicle_ids":["2003_hummer_h2"]},{"make":"UNKNOWN","model":"UNKNOWN1","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}