1995 GMC Yukon Owner's Manual - Page 183

' When a disc is playing, the letters CD and the CD symbol will appear in the display. EJECT - Press EJECT to eject the disc from theplayer and play the radio. When the same ora new disc is inserted, the disc will start playing on track 1. 00 Dolby@ Noise Reduction manufactured under a license fromDolby is Laboratories Licensing Corporation. Dolby@ the 00 symbol are and trademarks of Dolby Laboratories Licensing Corporation. THEFTLOCK Theft Deferent Feature THEFTLOCK is an anti-theft feature for the compact disc player. It can be used or ignored. If ignored, the system plays normally. If it is used, your player won't be usable if it is ever stolen, because it will go to LOC mode any time the battery power is removed. After a loss of battery power, the player can'not beturned on unless an unlock code is entered. The following instructions tell you how to enter asecret code into the system. If your vehicle loses battery power for any reason, you must unlock the system with the secret code before the radio will turn on. To Lock The System: I . Write down any number from 000 to 999 and keep it in a safe place. 2. Turn the ignition to ACC or RUN. 3. Turn the radio off. 4. Press the 1 and 4 buttons together. Hold them down until on the display. "- - -" shows You are now ready to enter yoursecret code. Don't wait more than 15 seconds between any of the following steps. If you do, the radio automatically returns to time display and you must start the procedure over at step 4. 5. Press MIN and "000" will appear on the display. 6. Press the MIN button again to make the last two digits agree with your code. 7. Press HR to make the first one or two digits agreewith your code. 8. Press AM/FM after you have confirmed that the code matches the one you wrote down. rEP appears in the display, indicating that you need to repeat steps 5 through 7. 9. Press AM/FM and this time the display will show SEC. With the ignition off, the THEFTLOCK indicator will flash. 3-23