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Under the hood
Unique with its all-four-cylinder powertrain, the Buick Regal relies on the excellent horsepower-per-liter ratio of the Ecotec engine family to deliver smart, on-demand performance that is also ve ...

Online Owner Center
Online Owner Center (United States only) The Owner Center is a resource for your GM ownership needs. Specific vehicle information can be found in one place. The Online Owner Center allows you to: ...

Reporting Safety Defects toGeneral Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, we certainly hope you will notify us. Please call us at 1-800-521-7300, or write: Buick Customer Assistance Cente ...