1996 Chevrolet Lumina Unlock Radio
The 1996 Chevrolet Lumina Owner's Manual states that the radio came with a theft-deterrent option that could be activated by its owner. However, if you should lose power to the radio because of a dead battery or loss of power, you'll have to enter in the unlock code to use it again. You'll have to call a Chevrolet dealership to obtain a code if you are unable to locate it yourself.
| This process does not require tools.
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 Unlock Radio
- Power the radio by turning the key into the "On" position. The radio will read "Loc" from the display to signify that you can input the unlock code.
- Press the "MN" button, which is the same button you use to set the minutes when setting your clock. Once "000" appears on the radio's display, press "MN" as many times as necessary to produce the last two numbers of your unlock code.
- Press the "HR" button, which is the same button used to change the hour when setting the clock, until your first two digits of the unlock code are correct.
- Check the code to confirm that it is correct and press the "AM-FM" button. If the code is correct, the radio will read "Sec" from the display and work again as normal.
 Tips & Warnings
- The radio display will read "Inop" if you have tried to enter the code incorrectly too many times.
- You can access your Owner's Manual for free at the GM Owner Center website for more information. (See Resources)
- You have eight tries to enter the correct unlock code. If you did not enter it correctly, the Owner's Manual warns that you'll have to leave the vehicle on for at least one hour before you can enter it again. You are given three additional chances after you wait the hour.