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HOMESERVICE MANUALSOLDSMOBILE2004BRAVADA RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1224 (THEFT DETERRENT SYSTEM)REPAIR INSTRUCTIONSREPLACING KEYS
2004 Oldsmobile Bravada RWD

Replacing Keys

2004 Oldsmobile Bravada RWDSECTION Replacing Keys
WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required 

  • J 35628-A  Vats/Passkey Interrogator
  • J 35616-A  Terminal Adapters

In order to replace lost PASS-Key® II ignition keys, determine the required mechanical cut and the key code to start the vehicle from the vehicle invoice.

If the codes are not available, use the following steps in order to determine the code:

  1. Determine the mechanical cut from the following sources:
    • The code sticker on the steering column (ignition) lock cylinder
    • The original key knock outs
    • If the mechanical cut can not be determined, replace the steering column (ignition) lock cylinder.
  2. Using the J 35628-A  , determine the correct key code using the following steps:
    1. Disconnect the ignition lock cylinder connector.
    2. Connect the J 35628-A  to the harness side of the ignition lock cylinder connector.
    3. Turn on the J 35628-A  .
    4. Place the key code switch in the number 1 position.
    5. Attempt to start the engine with the new mechanically cut key.

      If the engine starts, the key code is 1.

    6. If the engine does not start, turn the ignition switch to the OFF position.
    7. Wait at least 3 minutes.
    8. Place the J 35628-A  key code switch in the next position (2, 3, 4, etc.).
    9. Attempt to start the engine.

      If the engine starts, you have the correct key code. Proceed to the next step.

      If the engine does not start, perform the previous 3 steps until the engine starts.

    10. Make a new ignition key using the correct key code and the mechanical cut.
    11. Ensure that the new key starts the engine.
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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.