{"nhtsa_id":10138768,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-05-29","date":"2018-01-11","document_id":"SFCC-11JAN18 Att","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"A customer is complaining that while driving with climate control off she turns on max defrost you get a loud groaning noise as the defroster comes on. I road tested with the customer and heard the noise. If the climate control is already on I was unable to reproduce the noise. I tried a new car on the lot and was able to get that vehicle to produce the same noise under the same conditions. Any Ideas?","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138768-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10138768-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10138768","components":[{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"LAND ROVER","model":"DISCOVERY","year_from":2017,"year_to":2017,"match":"exact","vehicle_ids":["2017_land-rover_discovery"]}],"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":[]}