See also:

Customer Assistance for Text Telephone (TTY) Users
To assist customers who are deaf, hard of hearing, or speech-impaired and who use Text Telephones (TTYs), Buick has TTY equipment available at its Customer Assistance Center. Any TTY user can comm ...

Mass Storage Media (MEM)
Infotainment systems with MEM storage are able to record up to 1.1 GB (gigabyte) of music from audio CDs, MP3/WMA/AAC discs, and USB storage devices. The MEM player can also time shift audio ...

Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle ...