{"nhtsa_id":10190271,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-14","date":"2017-10-01","document_id":"17-NA-265","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY","mfr_system":null,"summary":"Flutter or Thump Noise from Rear of Vehicle Condition Some customers may comment on hearing a flutter or thump noise from the rear of the vehicle. The noise is most noticeable while driving above 40 km/h (25 mph), with the HVAC off, or in recirculation mode Cause The cause of the condition may be the rear pressure relief valves (PRVs) opening and closing.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10190271-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2017/MC-10190271-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10190271","components":[{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EQUINOX","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_chevrolet_equinox"]},{"make":"GMC","model":"TERRAIN","year_from":2018,"year_to":2018,"match":"exact","vehicle_ids":["2018_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":[]}