2012 GMC Acadia Owner's Manual - Page 126

5-10 Instruments and Controls The power outlet is not designed for and may not work properly, if the following are plugged in: . Equipment with high initial peak wattage such as: compressor-driven refrigerators and electric power tools. Other equipment requiring an extremely stable power supply such as: microcomputer-controlled electric blankets, touch sensor lamps, etc. Warning Lights, Gauges, and Indicators Warning lights and gauges can signal that something is wrong before it becomes serious enough to cause an expensive repair or replacement. Paying attention to the warning lights and gauges could prevent injury. Warning lights come on when there could be a problem with a vehicle function. Some warning lights come on briefly when the engine is started to indicate they are working. Gauges can indicate when there could be a problem with a vehicle function. Often gauges and warning lights work together to indicate a problem with the vehicle. When one of the warning lights comes on and stays on while driving, or when one of the gauges shows there may be a problem, check the section that explains what to do. Follow this manual's advice. Waiting to do repairs can be costly and even dangerous. . See High Voltage Devices and Wiring on page 10‑29.