General Information

Your system has this feature if it shows "THEFTLOCK" on its face. THEFTLOCK is a theft-deterrent feature that can be used or ignored. If you ignore it, your system will play normally. If you use it, your system can't be turned off if it is stolen because it locks anytime battery power is removed. To unlock it, a code must be entered.

These instructions will tell you how to enter a code into your system. They also tell you how to unlock the system with your code and how to shut off the THEFTLOCK system.

If the security is activated and the radio is disconnected from battery power, the radio will display "LOC". The radio will not turn on until the correct unlocking code is entered. If the customer code is lost or unavailable, contact your local GM dealership or an authorized Delco radio service center for additional assistance.