2008 Buick Enclave Owner's Manual - Page 218

For a Radio with a Six-Disc CD Player To change the time and date default setting, do the following: 1. Change the time default setting from 12 hour to 24 hour or the date default setting from month/day/ year to day/month/year, by pressing the MENU button. 2. Once the H (clock) label displays, press the pushbutton located under that label until the time and date settings display along with a forward arrow. 3. Press the pushbutton located under the forward arrow until the time 12H and 24H, and the date MM/DD/YYYY (month, day, and year) and DD/MM/YYYY (day, month, and year) displays. 4. Press the pushbutton located under the desired option, then press the MENU button again to apply the selected default, or let the screen time out. Radio(s) (MP3) Radio with CD shown, Radio with Six-Disc CD similar 3-78