{"nhtsa_id":10081441,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2016-10-04","date":"2015-04-14","document_id":"FSB 722-003","mfr_campaign":null,"replaces":null,"component":"SUSPENSION:REAR:SPRINGS:AIR SUSPENSION SYSTEM; SUSPENSION; SUSPENSION:FRONT:SPRINGS:AIR SUSPENSION SYSTEM","mfr_system":null,"summary":"\"THE UNWARRANTED ERRORMESSAGES \"\"HYBRID SYSTEM FAULT\"\" AND \"\"REDUCED ENGINE POWER\"\" CAN APPEAR SPORADICALLY IN THE INSTRUMENT CLUSTER ON THE AFFECTED VEHICLES UNDER CERTAIN DRIVING CONDITIONS BECAUSE THE DIAGNOSTIC FUNCTION FOR THE HYBRID DECOUPLER IS TOO SENSITIVE. IF THIS HAPPENS, ENGINE POWER WILL BE REDUCED AND THE CHECK ENGINE LIGHT WILL BE ACTIVATED UNTIL THE IGNITION IS SWITCHED OFF AND ON AGAIN.\" \"THE UNWARRANTED ERRORMESSAGES \"\"HYBRID SYSTEM FAULT\"\" AND \"\"REDUCED ENGINE POWER\"\" CAN APPEAR SPORADICALLY IN THE INSTRUMENT CLUSTER ON THE AFFECTED VEHICLES UNDER CERTAIN DRIVING CONDITIONS BECAUSE THE DIAGNOSTIC FUNCTION FOR THE HYBRID DECOUPLER IS TOO SENSITIVE. IF THIS HAPPENS, ENGINE POWER WILL BE REDUCED AND THE CHECK ENGINE LIGHT WILL BE ACTIVATED UNTIL THE IGNITION IS SWITCHED OFF AND ON AGAIN.\"","document":null,"url":"https://open.wenmarpro.com/bulletins/10081441","components":[{"id":"suspension","name":"Suspension","parent":null},{"id":"air-suspension","name":"Air suspension","parent":"suspension"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"MACK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]}],"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":[]}