1996 Chevrolet Tahoe Owner's Manual - Page 156

Unlocking the Theft-Deterrent Feature After a Power Loss Enter your secret code as follows;pause no more than 15 seconds between steps: 1. LOC appears when the ignition is on. Disabling the Theft-Deterrent Feature Enter your secret code as follows; pause no more than 15 seconds between steps: 1. Turn the ignition to the ACCESSORY or RUN position. 2. Turn the radio off. 2. Press MN and 000 will appear on the display. 3. Press MN again to make the last two digits agree with your code. 4. Press HR to make the first one ortwo digits agree with your code. 5 . Press AM-FM after yod have confirmed that the code matches the secret code you have written down. The display will show SEC, indicating the radio is now operable and secure. 3. Press the 1 and 4 buttons together. Hold them down until SEC shows on the display. 4. Press MN and 000 will appear on the display. 5. Press MN again to make the last two digits agree with your code. 6. Press .HR to make the first one or two digits agree with your code. 7. Press AM-FM after you have confirmed that the code matches the secret code you have written down. The display will show ---,indicating that the radiois no longer secured. If the code entered is incorrect, SEC will appear on the display. The radio'will remain secured until the correct code is entered. When battery power is disconnected from a secured radio, the radio won't turn on and LOC will appear on the display. If you enter the wrong.code eight times, INOP will appear on the display. You will have to wait an hour with the ignition on before you can try again. When you try again, you will only have three chances toenter the correct code before INOP appears. If you lose or forget your code, contact your dealer.