{"nhtsa_id":614131,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-09-28","date":"2000-05-01","document_id":"SB0004C002","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN","mfr_system":null,"summary":"SOME VEHICLES MAY DISPLAY INACCURATE SPEEDOMETER READINGS. THIS BULLETIN CONTAINS SPEEDOMETER CONTROL UNIT COVER REMOVAL PROCEDURES. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/614131","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"ISUZU","model":"FRR","year_from":2000,"year_to":2000,"match":"exact","vehicle_ids":["2000_isuzu_frr"]}],"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":[]}