{"nhtsa_id":10176822,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2020-06-29","date":"2020-05-27","document_id":"N192287840","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:WIRING; ENGINE","mfr_system":null,"summary":"Service Update - Certain vehicles equipped with a 2.7L turbo engine (RPO L3B), may have a condition where the engine wiring harness may have been wrapped and/or routed incorrectly, creating the potential for wear-through in several locations. If this occurred it could allow the engine harness to short to ground and/or be severed, which may lead to a check engine light, reduced engine power, no start condition or in rare cases a stall. Dealers are to inspect harness for correct tape wrapping and install engine harness sleeves.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10176822-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2020/MC-10176822-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10176822","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"wiring","name":"Wiring and fuses","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2020,"year_to":2020,"match":"base","vehicle_ids":["2020_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":[]}