2006 Buick Lucerne Owner's Manual - Page 181

CHECK TIRE PRESSURE This warning message and the tire pressure light on the instrument panel cluster will appear when the air pressure in one of the tires is too low or too high. Check the vehicle's tire pressure as soon as possible, and fill or deflate the affected tire to the appropriate level. The correct tire inflation pressure should be set to those shown on the tire-loading information label on the vehicle. See Loading Your Vehicle on page 4-29 and Tire Pressure Light on page 3-44 for more information. This message is reset when it is acknowledged. However, you must also reset the tire pressure system. See "Reset Tire Pressure System" under DIC Controls and Displays on page 3-50 for more information. ENGINE HOT A/C (Air Conditioning) OFF This message will display when the engine coolant becomes hotter than the normal operating temperature. To avoid added strain on a hot engine, the air conditioning compressor is automatically turned off. When the coolant temperature returns to normal, the A/C operation will automatically resume. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your GM dealer as soon as possible to avoid compressor damage. ENGINE OIL LOW ADD OIL This message will display when the vehicle's engine oil is low. Fill the oil to the proper level as soon as possible. See Engine Compartment Overview on page 5-12 for the engine oil fill location. Also, see Engine Oil on page 5-15 for information on the kind of oil to use and the proper oil level. DRIVER DOOR OPEN This message will display when the driver's door is not closed properly. When this message appears, you should make sure that the driver's door is closed completely. 3-57