1994 GMC Jimmy Owner's Manual - Page 157

8. Press BAND and 000 will appear again. Now you are ready to enter the last three digitsof your code. 9. Repeat steps 6 and 7 for the last three digitsof your code. 10. Press BAND and rEP will appear for 5 seconds and then 000 will appear. 11. Repeat steps 6 through 10. This time SEC will appear-indicating that the radio is secure. To Unlock The System After Power Loss A When battery power is reapplied a secured radio, the radio won't turn on to and LOC will appear on the display. Enter your secret code as follows: pause no more than15 seconds between steps. 1. Turn the ignition on. (Radio off.) 2. Depress the SET button. The display will show000. 3. Enter the six digitsof the code following steps 6-9 above. The display will showthe numbers as entered. 4. Depress the BAND knob and the time appears - indicating that the disabling sequence was successful. If the display indicatesSEC, the numbers didnot match and the unit still secured. is Disabling The Theft System 1. Depress presets 1 and 4 for 5 seconds with ignition on and radio power off. The display will showSEC, indicating the unit is in the secure mode. 2. Depress the SET button. The display will show000. 3. Enter the first three digits of the code following steps 6 and 7 of the preceding paragraphs. The display will show the numbers as entered. 4. Depress the BAND knob. The radio will display 000. 5. Enter the second three digits of the code. The display will show the numbers as entered. 6. Depress the BAND knob. If the display shows the disabling sequence was successful.The numbers matched the user-selected code or the factory back-up code, and the unit in the UNSECURED mode. is If the display shows SEC, the disabling sequence was unsuccessful and the numbers did not match either of the codes and unit will remain the in theSECURED mode. 3-23