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Home >> Buick >> 2003 >> Century Custom >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls Self-Diagnostics - 3.1L Engine >> Programming >> Programming Theft Deterrent System Components >> 10 Minute Learn Procedure
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10 Minute Learn Procedure

  1. Connect the Tech 2® to the vehicle.
  2. Select REQUEST INFORMATION under SERVICE PROGRAMMING.
  3. Disconnect the Tech 2® from the vehicle and connect it to a Techline terminal.
  4. On the Techline terminal, select THEFT MODULE RE-LEARN under SERVICE PROGRAMMING.
  5. Disconnect the Tech 2® from the Techline terminal and connect it to the vehicle.
  6. Turn ignition switch to RUN position, engine OFF.
  7. Select VTD RE-LEARN under SERVICE PROGRAMMING.
  8. Attempt to start the engine, then release the key to RUN position (vehicle will not start).
  9. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF (the vehicle is now ready to relearn the password on the next ignition switch transition from OFF to CRANK position).
  10. Turn ignition switch to OFF position, and wait 5 seconds.
  11. Start the engine (the vehicle has now learned the password).
  12. Using the Tech 2® (scan tool), clear any DTCs.
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