{"nhtsa_id":10043894,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-05-01","date":"2012-03-01","document_id":"PI0701","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:WINDSHIELD:ELECTRICAL HEATING ELEMENT","mfr_system":null,"summary":"GM: MAY BE DIFFICULT TO SET THE TEMPERATURE WHEN IN DEFROST MODE. THIS CONDITION MAYBE CAUSED BY THE EXISTING HVAC CONTROL MODULE CALIBRATION LACKING TEMPERATURE SENSITIVITY. *JS","document":null,"url":"https://open.wenmarpro.com/bulletins/10043894","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EQUINOX","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_chevrolet_equinox","2011_chevrolet_equinox"]},{"make":"GMC","model":"TERRAIN","year_from":2010,"year_to":2011,"match":"exact","vehicle_ids":["2010_gmc_terrain","2011_gmc_terrain"]}],"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":[]}