2003 GMC Safari Owner's Manual - Page 97

Theft-Deterrent Systems Vehicle theft is a big business, especially in some cities. Although your vehicle has a number of theft-deterrent features, we know that nothing we put on it can make it impossible to steal. However, there are ways you can help. During normal operation, the SECURITY light will go off approximately five seconds after the key is turned to RUN. If the engine stalls and the SECURITY light flashes, wait until the light stops flashing before trying to restart the engine. Rememberto release the key from START as soon as the engine starts. If the engine is running and the SECURITY light comes on, you will be able to restart the engine if you turn the engine off. However, your Passlock@ system is not working properly and must be serviced by your dealer. Your vehicle is not protected by Passlock@ at this time. You may also want to check the fuse. See Fuses and Circuit Breakers on page 5-93. See your dealer for service. Passlock@ Your vehicle is equipped with the Passlock@ theft-deterrent system. Passlock@is a passive theft-deterrent system. Passlock@ enables fuel if the ignition lock cylinder is turned with a valid key. If a correct key is not used or the ignition lock cylinder is tampered with, fuel is disabled. 2-18