2011 GMC Savana 1500 Cargo Owner's Manual - Page 130

5-14 Instruments and Controls A reading in the low pressure zone may be caused by a dangerously low oil level or other problem causing low oil pressure. Check the oil as soon as possible. Engine Oil Pressure Gauge { WARNING Do not keep driving if the oil pressure is low. The engine can become so hot that it catches fire. Someone could be burned. Check the oil as soon as possible and have the vehicle serviced. Notice: Lack of proper engine oil maintenance can damage the engine. The repairs would not be covered by the vehicle warranty. Always follow the maintenance schedule for changing engine oil. English Metric The oil pressure gauge shows the engine oil pressure in psi (pounds per square inch) or kPa (kilopascals) when the engine is running. Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range.