2004 Hummer H2 Owner's Manual - Page 190

DIC Warnings and Messages Warning messages are displayed on the DIC to notify the driver that the status of the vehicle has changed and that some action may be needed by the driver to correct the condition. If there is more than one message that needs to be displayed they will appear one after another. Some messages may not require immediate action but you should press the select button to acknowledge that you received the message and clear it from the display. Some messages cannot be cleared from the display because they are more urgent; these messages require action before they can be removed from the DIC display. The following are the possible messages that can be displayed and some information about them. CHECK OIL LEVEL If the oil level in the vehicle is low, this message will appear on the DIC. Check the oil level and correct it as necessary. You may need to let the vehicle cool or warm up and cycle the ignition to be sure this message will clear. Once the problem is corrected, pressing the select button will clear this message from the DIC display. This message will clear itself after 10 seconds until the next ignition cycle. OIL LIFE RESET This message will appear on the display for about 10 seconds after resetting the change engine oil message. CHANGE ENGINE OIL This message is displayed when the engine oil needs to be changed and service is required for your vehicle. See Scheduled Maintenance on page 6-4 and Engine Oil on page 5-14 for more information. Also see "GM Oil Life System" previously in this section for information on how to reset the message. This message will clear itself after 10 seconds until the next ignition cycle. OIL PRESSURE LOW If low oil pressure levels occur, this message will be displayed on the DIC and a chime will sound. Stop the vehicle as soon as safely possible and do not operate it until the cause of the low oil pressure has been corrected. Check your oil as soon as possible and have your vehicle serviced. 3-56