{"nhtsa_id":11030970,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-04-07","date":"2026-03-30","document_id":"PIC6553B","mfr_campaign":null,"replaces":null,"component":"UNKNOWN OR OTHER","mfr_system":null,"summary":"This bulletin communicates to a dealer the repair direction that should be taken if they encounter a vibration from the engine when the vehicle is parked facing downhill.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030970-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11030970-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11030970","components":[],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"ENCORE GX","year_from":2020,"year_to":2026,"match":"exact","vehicle_ids":["2020_buick_encore-gx","2021_buick_encore-gx","2022_buick_encore-gx","2023_buick_encore-gx","2024_buick_encore-gx","2025_buick_encore-gx","2026_buick_encore-gx"]},{"make":"BUICK","model":"ENVISTA","year_from":2024,"year_to":2026,"match":"exact","vehicle_ids":["2024_buick_envista","2025_buick_envista","2026_buick_envista"]},{"make":"CHEVROLET","model":"TRAILBLAZER","year_from":2021,"year_to":2026,"match":"exact","vehicle_ids":["2021_chevrolet_trailblazer","2022_chevrolet_trailblazer","2023_chevrolet_trailblazer","2024_chevrolet_trailblazer","2025_chevrolet_trailblazer","2026_chevrolet_trailblazer"]},{"make":"CHEVROLET","model":"TRAX","year_from":2024,"year_to":2026,"match":"exact","vehicle_ids":["2024_chevrolet_trax","2025_chevrolet_trax","2026_chevrolet_trax"]}],"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":[]}