Ending a Call
Buick LaCrosse / Buick LaCrosse Owners Manual / Infotainment System / Phone / Bluetooth (Voice Recognition) / Ending a Call
Press 
to end a call.
See also:
Reporting Safety Defects to the
United States Government
If you believe that your vehicle has a defect which
could cause a crash or could cause injury or
death, you should immediately inform the National
Highway Traffic Safety Administration (NHTSA)
...
Safety
Side-impact airbags and antilock brakes are available. ...
Programming the Power
Windows
If the battery on the vehicle has
been recharged, disconnected, or is
not working, you will need to
reprogram each front power window
for the express-up feature to work.
Before reprogramming, ...