{"nhtsa_id":10190444,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2021-04-19","date":"2021-03-31","document_id":"PIP5798","mfr_campaign":null,"replaces":null,"component":"SUSPENSION; STRUCTURE","mfr_system":null,"summary":"This Preliminary information communicates Some customers may comment about a rough idle and/or vibration at idle. This condition may be most noticeable when the engine is completely warmed up and accessories are off, you may also feel this while idling at a stop in Drive. May feel like a misfire, stumble, lopey or lumpy idle or may be described as a low idle. This concern may be caused by several potential causes: Misfire and/or base engine concern Wrong fuel used (regular instead of premium when required) Idle speed fluctuation Engine mount pre-load","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10190444-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2021/MC-10190444-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10190444","components":[{"id":"structure-body","name":"Body and frame","parent":null},{"id":"suspension","name":"Suspension","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_chevrolet_silverado","2020_chevrolet_silverado","2021_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2019,"year_to":2021,"match":"base","vehicle_ids":["2019_gmc_sierra","2020_gmc_sierra","2021_gmc_sierra"]}],"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":[]}