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Gary
Gary, Chevy Technician
Category: Chevy
Satisfied Customers: 15728
Experience:  15 years GM master tech
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A am tryng to reset the anti theaft alarm in 2003 chevy

Customer Question

hi a am tryng to reset the anti theaft alarm in 2003 chevy diesel
Submitted: 1 year ago.
Category: Chevy
Expert:  Gary replied 1 year ago.

this is how to reset the theft system in this truck

  1. Turn ON the ignition, with the engine OFF.
  2. Attempt to start the engine, then release the key to ON, vehicle will not start.
  3. Observe the SECURITY telltale, after approximately 10 minutes the telltale will turn OFF.
  4. Turn OFF the ignition, and wait 5 seconds .
  5. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes , the vehicle is now ready to relearn the Passlock(tm) Sensor Data Code and/or passwords on the next ignition switch transition from OFF to CRANK.
  6. Start the engine. The vehicle has now learned the Passlock(tm) Sensor Data Code and/or password.

IMPORTANT: The vehicle learns the Passlock(tm) Sensor Data Code and/or password ***** the next ignition switch transition from OFF to CRANK. You must turn the ignition OFF before attempting to start the vehicle.

Expert:  Gary replied 1 year ago.

how are you making out ?

Expert:  Gary replied 1 year ago.

how are you making out ?

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