However the drawback of a theftlock system is that when the battery becomes disconnected or dies you would need to deactivate the whole system by entering the radio code.
Gm radio door lock.
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How to unlock a chevy radio step 1.
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Start the vehicle and turn on the radio.
The theftlock sound system was designed by general motors gm to discourage criminals from breaking into vehicles to stealing radios and is used in many of the company s automobiles including chevrolet models.
Then press the power button on the radio s volume dial to turn on the radio.
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However if the 4 digit password gets lost the system becomes inaccessible effectively taking cds hostage.
Put your key in the ignition and turn on your radio.
The digital display will read loc if the radio is locked.