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HOMESERVICE MANUALSBUICK2006TERRAZA CXL, 3.5 L, AWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 193 (THEFT DETERRENT SYSTEM)THEFT DETERRENT MODULE PROGRAMMING AND SETUPREPLACING KEYS
2006 Buick Terraza CXL, 3.5 L, AWD

Replacing Keys

2006 Buick Terraza CXL, 3.5 L, AWDSECTION Replacing Keys
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.

Replacing or Relearning Vehicle Keys 

IMPORTANT: When performing the 30-Minute Relearn Procedure, all previously learned keys will be erased from the TDM memory. Additional keys may be learned after the completion of the 30-Minute Relearn Procedure by using the Adding Keys  procedure.

When the correct number of learned master keys are not available to perform adding keys procedure the 10-minute re-learn procedure must be performed. Refer to Programming Theft Deterrent System Components 

30-minute Vehicle Key Relearn 

IMPORTANT: This procedure will only relearn the vehicle keys. This procedure will not learn the theft deterrent pre-release password or the challenge/response data. Do not use this procedure as a substitute for a 10-minute relearn when replacing or reprogramming a TDM or ECM. Doing so will result in a failure to learn the pre-release password and/or the challenge/response data.

This 30-minute learn procedure should be used when all vehicle keys are desired to be replaced or reprogrammed. This procedure will erase all previously learned vehicle keys from the TDM. Once the 30-minute learn procedure has been completed, all vehicle keys must be relearned to ensure their continued functionality.

  1. With a master vehicle key, turn ON the ignition, with the engine OFF.
  2. Observe the security indicator, after approximately 10 minutes the telltale will turn off.
  3. Turn OFF the ignition, and wait 5 seconds.
  4. Repeat steps 1-3 two more times for a total of 3 cycles or 30 minutes.
    IMPORTANT: The TDM learns the key transponder information upon the ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.
  5. With a master vehicle key, start the vehicle. The vehicle has now learned the key transponder information.
  6. If additional keys are required to be learned, refer to Adding Keys 
  7. With a scan tool, clear any DTCs.
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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.