2012 Buick LaCrosse Owner Manual - Page 132

5-14 Instruments and Controls In eAssist vehicles, the engine coolant warning light comes on when the engine is too hot. See Engine Coolant Temperature Warning Light on page 5‑24 in this section. This reading indicates the same thing as the warning light. It means that the engine coolant has overheated. If the vehicle has been operating under normal driving conditions, pull off the road, stop the vehicle, and turn off the engine as soon as possible. See Engine Overheating on page 10‑19 for more information. Engine Coolant Temperature Gauge English Metric This gauge shows the engine coolant temperature. If the gauge pointer moves toward the shaded area, the engine is too hot.