2008 GMC Sierra 1500 Pickup Owner's Manual - Page 196

CHANGE ENGINE OIL SOON This message displays when the engine oil needs to be changed. When you change the engine oil, be sure to reset the CHANGE ENGINE OIL SOON message. See Engine Oil Life System on page 5-16 for information on how to reset the message. See Engine Oil on page 5-13 and Scheduled Maintenance on page 6-4 for more information. See "DIC Operation and Displays (Using DIC Buttons)" earlier in this section. If the tire pressure is low, the low tire pressure warning light comes on. See Tire Pressure Light on page 3-44. DRIVER DOOR OPEN This message displays and a chime sounds if the driver door is not fully closed and the vehicle is in a drive gear. Stop and turn off the vehicle, check the door for obstructions, and close the door again. Check to see if the message still appears on the DIC. CHECK TIRE PRESSURE This message displays when the pressure in one or more of the vehicle's tires needs to be checked. This message also displays LEFT FRONT, RIGHT FRONT, LEFT REAR, or RIGHT REAR to indicate which tire needs to be checked. You can receive more than one tire pressure message at a time. To read the other messages that may have been sent at the same time, press the set/reset button or the trip odometer reset stem. If a tire pressure message appears on the DIC, stop as soon as you can. Have the tire pressures checked and set to those shown on the Tire Loading Information label. See Tires on page 5-58, Loading Your Vehicle on page 4-34, and Inflation - Tire Pressure on page 5-65. The DIC also shows the tire pressure values. ENGINE HOT A/C (Air Conditioning) TURNED OFF This message displays when the engine coolant becomes hotter than the normal operating temperature. See Engine Coolant Temperature Gage on page 3-43. To avoid added strain on a hot engine, the air conditioning compressor automatically turns off. When the coolant temperature returns to normal, the air conditioning compressor turns back on. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your dealer/retailer as soon as possible to avoid damage to the engine. 3-60