{"nhtsa_id":10130673,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-04-02","date":"2016-10-17","document_id":"GCUS-3-719","mfr_campaign":null,"replaces":null,"component":"EQUIPMENT:APPLIANCE:AIR CONDITIONER; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"31170 - Service Update. Certain vehicles may have contact between the rear leaf spring shackle bolt and rear HVAC coolant lines that may rub through creating a coolant leak. This leak may cause the engine to overheat, leading to loss of propulsion or loss of HVAC performance. Dealers will replace the shackle bolt; inspect and, if necessary, replace the auxiliary heater hose.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10130673-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2016/MC-10130673-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10130673","components":[{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"hvac","name":"Heating and air conditioning","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2015,"year_to":2016,"match":"exact","vehicle_ids":["2015_chevrolet_express","2016_chevrolet_express"]},{"make":"GMC","model":"SAVANA","year_from":2015,"year_to":2016,"match":"exact","vehicle_ids":["2015_gmc_savana","2016_gmc_savana"]}],"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":[]}