Hill descent control (green)

Illuminates continuously when HDC is selected and HDC operating conditions are met - i.e. vehicle speed below 30 mph (50 km/h). If the lamp flashes, HDC has been selected, but the operating condi ...

Cruise control (green)

Illuminates when cruise control is active.   ...

See also:

Overriding the speed and follow mode
Whenever the driver is overriding the ACC by depressing the accelerator pedal, the ACC will not automatically apply the brakes to maintain separation from any vehicle ahead. The set speed and gap ...

Reporting Safety Defects to General Motors
In addition to notifying NHTSA (or Transport Canada) in a situation like this, please notify General Motors. Call 1-800-521-7300, or write: Buick Customer Assistance Center P.O. Box 33136 Detroit ...

Driving on Wet Roads
Rain and wet roads can reduce vehicle traction and affect your ability to stop and accelerate. Always drive slower in these types of driving conditions and avoid driving through large puddles and de ...