Verify Minutes and Expiration
Buick LaCrosse / Buick LaCrosse Owners Manual / OnStar / OnStar Services / Connections / Verify Minutes and Expiration
Push 
and say “minutes” then
“verify” to check how many minutes
remain and their expiration date.
See also:
CD/DVD Player
The CD/DVD player can play CDs,
DVD-As, MP3/WMA CDs, MP3/WMA DVDs, and DVD-Vs.
The CD/DVD player will not play
8 cm (3 in) discs. ...
Cruise Control
The cruise control lets the vehicle maintain a speed of about 40 km/h (25 mph)
or more without keeping your foot on the accelerator. Cruise control does not work
at speeds below 40 km/h (25 mph).
...
Towing
General Towing Information
The vehicle is neither designed nor intended to tow a trailer. ...