2010 Buick Lucerne Owner's Manual - Page 216

DRIVER DOOR OPEN This message displays when the driver door is not closed properly. Make sure that the door is closed completely. ENGINE OVERHEATED STOP ENGINE Notice: If you drive your vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. See Engine Overheating on page 6‑35 for more information. This message displays along with a continuous chime when the engine has overheated. Stop and turn the engine off immediately to avoid severe engine damage. See Engine Overheating on page 6‑35. ENGINE HOT A/C (Air Conditioning) OFF This message displays 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 automatically resumes. You can continue to drive your vehicle. If this message continues to appear, have the system repaired by your dealer as soon as possible to avoid compressor damage. ENGINE POWER IS REDUCED This message displays when the vehicle's engine power is reduced. Reduced engine power can affect the vehicle's ability to accelerate. If this message is on, but there is no reduction in performance, proceed to your destination. The performance may be reduced the next time the vehicle is driven. The vehicle may be driven at a reduced speed while this message is on, but acceleration and speed may be reduced. Anytime this message stays on, the vehicle should be taken to your dealer for service as soon as possible. ENGINE OVERHEATED IDLE ENGINE Notice: If you drive your vehicle while the engine is overheating, severe engine damage may occur. If an overheat warning appears on the instrument panel cluster and/or DIC, stop the vehicle as soon as possible. Do not increase the engine speed above normal idling speed. See Engine Overheating on page 6‑35 for more information. This message displays when the engine coolant temperature is too hot. Stop and allow the vehicle to idle until it cools down. 4-56 ERROR This message displays while viewing the odometer or trip odometers if there is a problem with the instrument panel cluster. See your dealer for service.