1997 Chevrolet Blazer Owner's Manual - Page 157

I . Write down any three or four-digit number from 000 to 1999 and keep it i n a safe place separate from the vehicle. 2. Turn the isnition to ACCESSORY or R U N . Unlocking the Theft-Deterrent Feature After a Power Loss Enter your secret code as follows: pause n o more than I5 seconds between steps: 1. LOC appears when the ignition is o n . 3. Turn the radio off. 4. Press the 1 and 4 buttons together. Hold thcm dow~l until --- shows on the display. Next yo11 will use the secret code number which you have written down. 5 . Press M N and 000 will appear o n the display. 6. Press M N again to make the last two digits agree w i t h your code. 2. Press M N and 000 cvill appear on the display. 3. Press M N again to lnake the last two digits agree with your code. 4. Press HR to make the first one or two digits agree w i t h your code. 5 . Press AM-FM after you have confirmed that the code matches the secret code ~ O L I have written down The display will show SEC, indicating the radio is now operable and secure. If ~ O L I enter the wrong code eight times, INOP w i l l appear on the display. You will have to wait an hour with the ignition o n before yo11 can try a p i n . When you try asain. you w i l l only have three chances to enter the correct code before lNOP appears. I f you lose or forger your code. contact your dealer. 7. Press HR t o 111akethe first one or two digits agree with your code. 8. Press AM-FM after- you have confirmed that the code matches the secret code you ha\;e written down. The display will show REP to Ict you know that you need t o repeat Steps 5 through 7 t o confirm your secret code. 3-18