{"nhtsa_id":10017334,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-11-03","date":"2007-02-01","document_id":"050842005","mfr_campaign":null,"replaces":"050842005A","component":"EXTERIOR LIGHTING:HEADLIGHTS:HIGH/LOW BEAM DIMMER SWITCH","mfr_system":null,"summary":"INFORMATION ON VERTICAL REFLECTION FROM HEADLAMPS WHEN USING HIGH BEAMS IN DENSE FOG. *TT UPDATED 04-04-07. *KB","document":null,"url":"https://open.wenmarpro.com/bulletins/10017334","components":[{"id":"lighting","name":"Lighting","parent":null},{"id":"headlight","name":"Headlights","parent":"lighting"}],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"ENVOY","year_from":2002,"year_to":2006,"match":"exact","vehicle_ids":["2002_gmc_envoy","2003_gmc_envoy","2004_gmc_envoy","2005_gmc_envoy","2006_gmc_envoy"]},{"make":"GMC","model":"ENVOY 360","year_from":2007,"year_to":2007,"match":"base","vehicle_ids":["2007_gmc_envoy"]}],"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":[]}