{"nhtsa_id":10089562,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2017-01-26","date":"2015-11-02","document_id":"14588B","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN","mfr_system":null,"summary":"14588B - SPECIAL COVERAGE (REVISED TO ADD 2016 MY CHEVROLET IMPALA). ON SOME POLICE PATROL VEHICLES, IDLING THE ENGINE FOR EXTENDED PERIODS OF TIME CAN PREMATURELY WEAR THE ENGINE-COOLING-FAN MOTOR. IN THIS CONDITION, THE MOTOR MAY FAIL TO OPERATE OR OPERATE NOISILY. THIS CONDITION CAN ALSO DAMAGE MOTOR-CONTROL RELAYS IN THE VEHICLE’S UNDERHOOD BUSSED ELECTRICAL CENTER (UBEC). DEALERS ARE TO DIAGNOSE AND REPLACE FAN MOTORS PER PI1384 REGARDING THE SEMI-ANNUAL PREVENTATIVE MAINTENANCE CHECK FOR POLICE VEHICLE COOLING FANS.","document":null,"url":"https://open.wenmarpro.com/bulletins/10089562","components":[{"id":"engine","name":"Engine","parent":null},{"id":"cooling-fan","name":"Cooling fan","parent":"engine"},{"id":"cooling-system","name":"Cooling system","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CAPRICE","year_from":2011,"year_to":2015,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"IMPALA","year_from":2012,"year_to":2016,"match":"exact","vehicle_ids":["2012_chevrolet_impala","2013_chevrolet_impala","2014_chevrolet_impala","2015_chevrolet_impala","2016_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":[]}