GMC 1997 Jimmy - Understanding Radio Reception

Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
I5 seconds between steps:
1. Turn the ignition to ACCESSORY or RUN.
2. Turn the radio off.
5. Press MN again to nlake the last two digits agree
with your cock.
6. Press HR to make the first one or two digits agree
with your code.
7. Press AM-FM after you have confiI-med that the
code matches the secret code
you have written do~+m.
The display will show ---, indicating that the radio is
no longer secured.
If the code entered is incorrect, SEC will appear OII the
display. The radio
will remain sec~~red until the correct
code is entered.
Understanding Radio Reception
FWl Stereo
3-19