{"nhtsa_id":11028274,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2026-02-04","date":"2026-01-27","document_id":"2079115/1","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM; ENGINE","mfr_system":null,"summary":"Turbo Charger Under-boost - DTC P029900 is evident in 0001 | V8 Kovomo | All Models. Customer Statement: The engine warning light comes on and the vehicle loses power. Workshop Findings: Customer statement can be verified and the following entries may be logged within the engine control unit. • P029900: Turbo/Super Charger Under-boost, passive/sporadic.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028274-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2026/MC-11028274-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/11028274","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null}],"codes":["P0299"],"topics":[],"vehicles":[{"make":"BENTLEY","model":"BENTAYGA","year_from":2018,"year_to":2023,"match":"exact","vehicle_ids":["2018_bentley_bentayga","2019_bentley_bentayga","2020_bentley_bentayga","2021_bentley_bentayga","2022_bentley_bentayga","2023_bentley_bentayga"]},{"make":"BENTLEY","model":"BENTAYGA","year_from":2025,"year_to":2026,"match":"exact","vehicle_ids":["2025_bentley_bentayga","2026_bentley_bentayga"]},{"make":"BENTLEY","model":"CONTINENTAL GT","year_from":2018,"year_to":2024,"match":"base","vehicle_ids":["2018_bentley_continental","2019_bentley_continental","2020_bentley_continental","2021_bentley_continental","2022_bentley_continental","2023_bentley_continental","2024_bentley_continental"]},{"make":"BENTLEY","model":"CONTINENTAL GT CABRIO","year_from":2019,"year_to":2024,"match":"base","vehicle_ids":["2019_bentley_continental","2020_bentley_continental","2021_bentley_continental","2022_bentley_continental","2023_bentley_continental","2024_bentley_continental"]},{"make":"BENTLEY","model":"FLYING SPUR","year_from":2020,"year_to":2024,"match":"exact","vehicle_ids":["2020_bentley_flying-spur","2021_bentley_flying-spur","2022_bentley_flying-spur","2023_bentley_flying-spur","2024_bentley_flying-spur"]},{"make":"BENTLEY","model":"redundant BENTAYGA","year_from":2024,"year_to":2024,"match":null,"vehicle_ids":[]}],"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":[]}