Buick 2004 Park Avenue - Manual (Page 195)

Disabling the Theft-Deterrent Feature
Enter your secret code as follows; pause no more than
15 seconds between steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press the 1 and 4 pushbuttons at the same time.
Hold them down until SEC appears on the display.
4. Press MIN and 000 will appear on the display.
5. Press MIN again to make the last two digits agree
with your code.
6. Press HRS to make the first one or two digits agree
with your code.
7. Press AM-FM after you have confirmed that the
code matches the secret code you have written
down. --- will appear on the display, indicating that
the radio is no longer secured.
If the code entered is incorrect, SEC will appear on the
display. The radio will remain secured until the correct
code is entered.
When battery power is removed and later applied to a
secured radio, the radio will not turn on and LOC
will appear on the display.
To unlock a secured radio see “Unlocking the
Theft-Deterrent Feature After a Power Loss” earlier in
this section.
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