2012 GMC Acadia Owner's Manual - Page 129

Instruments and Controls When the fuel tank is low on fuel, the FUEL LEVEL LOW message will appear on the Driver Information Center (DIC). For more information see Fuel System Messages on page 5‑39. Here are some situations that may occur with the fuel gauge. None of these indicate a problem with the fuel gauge. . 5-13 Engine Coolant Temperature Gauge At the gas station, the fuel pump shuts off before the gauge reads full. It takes a little more or less fuel to fill up than the fuel gauge indicated. For example, the gauge may have indicated the tank was half full, but it actually took a little more or less than half the tank's capacity to fill the tank. The gauge goes back to empty when the ignition is turned off. Metric English This gauge shows the engine coolant temperature. Under normal driving conditions the gauge will read approximately 100°C (210°F) or less. If the gauge pointer is near 125°C (260°F), the engine is too hot. 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. . .