1998 GMC Safari Owner's Manual - Page 149

Don't keep driving if the oil pressure is low. If you do,your engine can become so hot that it catches fire.You or others could beburned. Check your oil soon as possible and have your as vehicle serviced. SECURITY This light will come on briefly when you turn the key to START. I NOTICE: Damage to your engine from neglected oil problems can be costly and is not covered by your warranty. The light will stay on until the engine If the light starts. flashes, thePasslock" System has entereda tamper mode. If the vehiclefails to start,see "Passlock" in the Index. If the light comes on continuously while driving and stays on, there may be a problem with the Passlock System. Your vehicle will not protected by Passlock, be and you should see yourGM dealer. i