2003 Chevrolet Tahoe Owner's Manual - Page 200
2003 Chevrolet Tahoe Manual
Page 200 highlights
Oil Pressure Gage D tk . c c J if oil the pressure is low. If you do, your engine can become so hot that it catches fire. You or others could be burned. Check your oil as soon as possible and have your vehicle serviced. 1 United States Canada The oil pressure gage shows the engine oil pressure in psi (pounds per square inch) when the engine is running. Canadian vehicles indicate pressure in kPa (kilopascals). Oil pressure may vary with engine speed, outside temperature and oil viscosity, but readings above the low pressure zone indicate the normal operating range. Notice: Damage to your engine from neglected oil problems can be costly andis not covered by your warranty. Cruise Control Light The cruise light comes on whenever you set your cruise control. See "Cruise Control'' under Turn Signal/Multifunction Lever on page 3-7. A reading in the low pressure zone may be caused by a dangerously low oil level or some other problem causing low oil pressure. Check your oil as soon as possible. See Oil Pressure Low under DIC Warnings and Messages on page 3-62 and Engine Oil on page 5- 17. 3-49