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Eric, Automotive Repair Shop Manager
Category: Pontiac
Satisfied Customers: 32530
Experience:  20+ yrs. experience as repair shop manager and technician.
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How do I program a 2003 Bonneville key fob

Customer Question

How do I program a 2003 Bonneville key fob? I lost my old remote, and need to reprogram a new alarm remote.
Submitted: 7 years ago.
Category: Pontiac
Expert:  Eric replied 7 years ago.



a scan tool is absolutely required for this and is done as much for your protection. Otherwise anyone could purchase a key fob off Ebay and self-program to use on your vehicle. If you have heard that it can be done without a scan tool, that source is incorrect.


Here is programming method per GM:


2003 Pontiac Bonneville V6-3.8L VIN K

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Transmitter Programming


IMPORTANT: All transmitters which are to be recognized by the remote control door lock receiver (RCDLR) must be programmed in a single programming sequence. If the system is placed in program mode, all previously programmed transmitters will be erased upon the receipt of the programming signal from the first transmitter. Up to four transmitters may be programmed. The order in which the transmitters are programmed is important. The first transmitter programmed will be transmitter #1, and the second transmitter programmed will be transmitter #2. The number on the transmitters are for reference only: #2 can be programmed as #1, or vice versa. Additional unnumbered transmitters are also available. Use care to program the transmitters correctly.

  1. Install a scan tool.
  2. Turn ON the ignition, with the engine OFF.
  3. Use the scan tool Remote Function Actuation Special Function: Program Key Fobs in order to place the remote control door lock receiver into Program Mode. The doors will lock and then unlock in order to confirm program mode.
  4. Press and hold the LOCK button and the UNLOCK button simultaneously on one transmitter. After a delay of 15 seconds, the doors will lock and unlock in order to confirm the programming of that transmitter.

IMPORTANT: The scan tool must stay connected until all of the transmitters are programmed.

  1. Repeat the previous step in order to program up to 4 transmitters.
  2. Remove the scan tool.
  3. Operate the transmitter functions in order to verify correct system operation.