{"nhtsa_id":10139300,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-06-04","date":"2015-03-02","document_id":"PIC6071","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW","mfr_system":null,"summary":"This Preliminary Information communication provides information to the technician about when using the Rear Defogger the upper region of the rear window does not clear. Advise the customer this is normal operation the top grid lines on the glass are antenna lines and will not heat the glass.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10139300-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2015/MC-10139300-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10139300","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":"IMPALA","year_from":2014,"year_to":2015,"match":"exact","vehicle_ids":["2014_chevrolet_impala","2015_chevrolet_impala"]}],"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":[]}