{"nhtsa_id":616458,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-02-27","date":"1998-09-04","document_id":"9210","mfr_campaign":null,"replaces":null,"component":"VISIBILITY:WINDSHIELD WIPER/WASHER","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A WINDSHIELD WIPER RELAY THAT CAUSES INTERMITTENT WINDSHIELD WIPER FUNCTION TO BE A FIXED INTERVAL, AND NOT A VARIABLE INTERVAL. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/616458","components":[{"id":"visibility","name":"Glass, wipers and mirrors","parent":null},{"id":"wiper","name":"Wipers and washers","parent":"visibility"}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"911 CARRERA","year_from":1999,"year_to":1999,"match":"base","vehicle_ids":["1999_porsche_911"]}],"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":[]}