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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 725 (ENTERTAINMENT SYSTEM)DESCRIPTION & OPERATIONRADIO/AUDIO SYSTEM DESCRIPTION & OPERATIONACTIVATING THE THEFTLOCK™ FEATURE
2004 Oldsmobile Bravada RWD

Activating The Theftlock™ Feature

2004 Oldsmobile Bravada RWDSECTION Activating The Theftlock™ Feature
WARNING: This page is about a different car, the 2002 GMC Sierra, 2002 GMC Cab & Chassis Sierra, 2002 Chevrolet Silverado, and 2002 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Important:  Read all steps before starting the procedure.

If more than 15 seconds elapse between any of the steps, the radio automatically reverts to time and you must start the procedure over from step  4.

If SEC appears on the display in step  4, the system has already been activate.

To change the code, the old code must be removed first.

In order to activate the Theftlock™ system, perform the following steps:

  1. Write down any number from 000 to 1999.
  2. Turn the ignition to the ACCESSORY or the RUN position.
  3. Turn the radio OFF.
  4. Press the 1 and 4 push-buttons together. Hold them down until"- - -"shows on the display.
  5. Press MN and 000 will appear on the display.
  6. Press and hold MN again until the last two digits agree with your code.
  7. Press and hold HR to make the first one or two digits agree with your code.
  8. Press the AM/FM push button after you have confirmed that the code matches the code you wrote down. If REP appears on the display, repeat steps  5 -  8.
  9. SEC will appear on the display, the radio is now operable and secured.
  10. With the ignition OFF, the Theftlock™ indicator flashes.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.