1995 Chevrolet Suburban Owner's Manual - Page 179
1995 Chevrolet Suburban Manual
Page 179 highlights
To Unlock THEFTLOCK Aftera Power Loss When battery power is reapplied to a secured radio, the radio won't turn on and "LOC" will appear on the display. Enter your secret code as follows. Pause no more than 15 seconds between steps. 1. Turn the ignition on. 2. Turn the radio off. 3. Press MIN and "000" will appear on the display. 4. Press the MIN button again to make the last two digits agree with your code. 5. Press HR to make the first one or two digits agreewith your code. 6. Press AM/FM after you have confirmed that the code matches the one you wrote down. SEC appears in the display indicating that the radio is now operable. To Disable THEFTLOCK 1 . Turn the ignition on. 2. Turn the radio off. 3. With the time showing in the display, press the 1 and 4 buttons together. Hold them down until "SEC" shows on the display. You are now ready to enter your secret code. Don't wait more than 15 seconds between any of the following steps. 4. Press MIN and "000" will appear on the display. 5. Press the MIN button again to make the last two digits agree with your code. 6. Press HR to make the first one ortwo digits agree with your code. 7. Press AMEM after you have confirmed that the code matches the one you wrote down. "-" will appear in the display, indicating that the system is unsecured (disabled). If the code is incorrect, "SEC" will appear in the display and the system will still be secured. The radio will still operate if it is secured orunsecured. If "SEC" appears and you still want to disable the system, followthe disable procedure again and enter the correct code. 3-24