2009 GMC Yukon Owner's Manual - Page 268

Setting the Clock MP3 Radios with a Single CD or a Single CD and DVD Player If the vehicle has a radio with a single CD or a CD and DVD player, it has a H (clock) button for setting the time and date. To set the time and date: 1. Press the H button and the HR, MIN, MM, DD, YYYY (hour, minute, month, day, and year) displays. 2. Press the pushbutton located under any one of the labels to change it. Every time the pushbutton is pressed again, the time or the date if selected, increases by one. Changing the Time and Date Default Settings To change the time default setting from 12 hour to 24 hour or to change the date default setting from month/day/year to day/month/year, follow these instructions: 1. Press the H button and then the pushbutton located under the forward arrow that is currently displayed on the radio screen 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. 2. Press the pushbutton located under the desired option. 3. Press the H button again to apply the selected default, or let the screen time out. • Another way to increase the time or date, is to press the right ¨SEEK arrow or the (forward) button. \ FWD • To decrease the time or date, press the left ©SEEK arrow or the s REV (reverse) button, or turn the f (tune) knob, located on the upper right side of the radio, to adjust the selected setting. 3-84