2007 Chevrolet Uplander Owner's Manual - Page 256

5. To start the compass calibration, press and hold the set/reset button until CALIBRATION BEGUN DRIVE UNTIL DONE appears in the DIC display. 6. Drive the vehicle slowly in a circle two times to activate the compass. When the calibration is complete, the DIC will display CALIBRATION FINISHED. 7. If the message CAL appears in the DIC, you must manually put the compass into the calibration mode again. Repeat Steps 1 through 6. Some messages cannot be cleared from the DIC display because they are more urgent. These messages require action before they can be cleared. If there are any active warning messages when the vehicle is turned off, two chimes sound and the DIC goes into a reminder mode. The reminder mode displays any active message. If there are multiple messages, the DIC displays each message for five seconds. After each active message is displayed once, the reminder mode turns off. You should take any messages that appear on the display seriously and remember that clearing the messages will only make the messages disappear, not correct the problem. The following are the possible messages that can be displayed and some information about them. DIC Warnings and Messages 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. Multiple messages may appear one after another. Some messages may not require immediate action, but you can press any of the DIC buttons to acknowledge that you received the message and clear it from the DIC display. 256