GM notes that 2008-2019 vehicles, such as Buick Cascada, equipped with a direct injection engine may exhibit black smoke, rough idle and minimal misfires on a cold start. Some customers may also state that the MIL is not illuminated.
Please Release Me
This bulletin applies to 2016-2017 Buick Envision Essence vehicles. Some customers may comment that the rear park brake may not release and/or a DIC message “Service Park Brake” is displayed and/or a warning indicator is illuminated.