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Buick TSB #19-NA-044
2020 Buick Envision
Affected Component: FUEL SYSTEM, GASOLINE
Date Published
AUG 10, 2022
NHTSA TSB #
10218873
TSB Document
MC-10218873-0001.pdf
Summary
This service bulletin provides information on the cold start control system in DI engines to reduce cold start emissions and improve fuel economy.