{"nhtsa_id":10076057,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-07-07","date":"2016-02-19","document_id":"WF89","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING; EQUIPMENT","mfr_system":null,"summary":"Replacing Coolant Regulator (Workshop Campaign) A coolant regulator that does not meet the high Porsche quality standards may have been installed in the affected vehicles. The function of the coolant regulator can therefore be impaired over the service life of the vehicle and as a result, the red warning \"Coolant temperature too high\" can be displayed in the instrument cluster.","document":null,"url":"https://open.wenmarpro.com/bulletins/10076057","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"PORSCHE","model":"CAYENNE S HYBRID","year_from":2011,"year_to":2011,"match":"base","vehicle_ids":["2011_porsche_cayenne"]}],"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":[]}