I recently purchased the new style 2008 key for my 2007. The problem I am having is that when I program the new key to the car it makes it #3 which does not allow it to recall my memory settings. I need to know how I could erase the current keys from memory and reprogram them in the order I want so I can make the new key #1. Any help would be appreciated.

 

do NOT do this yourself. You will end up with a car that will not start.

I just did this on my 08. I was only saved by the dealer sending a tech to my HOUSE to reprogram my car.

If you erase your existing fobs, ONLY the Tech tool will make it right.

 

You can do it but its tricky and if its not done right you may end up with a dead car that won't start with any FOB. What has to be done is a total RCDLR relearn, and what it does is it deletes all the other FOBs then relearns the new FOBs. Here is the procedure from GM:

Transmitter Programming (N. America and Japan, except Canada)
Important: Do not operate or program the key fobs in the vicinity of other vehicles that are in the keyless entry program mode. This will prevent the programming of the key fobs to the incorrect vehicle.

There are 3 methods for programming key fobs. Up to 4 key fobs may be programmed to the remote control door lock receiver (RCDLR). Each programmed key fob is given a position of #1-#4 in the RCDLR memory.

All procedures require the use of a scan tool. If a scan tool is not available, refer to the vehicle owners manual for fob programming procedures.

Method 1 - Adding or Replacing a Key Fob (Known Key Fob Available)
This procedure will add or replace key fobs. This procedure requires that you have a known key fob, a replacement key fob, and a scan tool.

Important: This procedure is not available when the maximum number of fobs (4) have been programmed. If 4 key fobs are programmed to this RCDLR and this method is attempted, the driver information center (DIC) will display MAX FOBS LEARNED and the programming procedure will exit. Method 2 or 3 must be used in this instance.

Place a known fob in the cup holder.
Turn the vehicle in RUN, place the transmission in PARK (A/T) or REVERSE (M/T) and shut the vehicle OFF.
Using the scan tool access the following:
• Vehicle Control Systems

• Computer/Integrating Systems

• Module Setup

• Remote Control Door Lock Receiver

• Program Key Fobs

Select the fob position you wish to program:

Important: Selecting Invalidate All Fobs will erase any known fobs and require all fobs to be relearned to the vehicle.


• Invalidate All Fobs

• Program Fob 1

• Program Fob 2

• Program Fob 3

• Program Fob 4

With the fob position selected, press the PROGRAM button on the scan tool. The DIC should display: READY FOR FOB X (X = fob 1, 2, 3 or 4, depending on the selected position)
⇒ If the DIC displays: OFF/ACC TO LEARN, refer to Method 2.

Place the replacement key fob in the glove box fob pocket with the buttons facing right.
A beep will occur indicating the fob has been programmed. If the Invalidate All Fobs selection was chosen the DIC will continue to the next available key fob slot until all slots are programmed or OFF/ACC is pressed. If any other selection was chosen and additional fobs are needed to be programmed, repeat steps 3-5.
Important: Failure to press the UNLOCK button of each key fob will result in that fob being inoperative. Pressing the UNLOCK button finishes the programming sequence and is require to ensure transmitter operation.

Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.

Method 2 - Replacing Key Fobs (No Known Key Fob Available)

This procedure will erase all known key fobs. The procedure will then program a single or multiple key fobs. It requires that you have a replacement key fob and a scan tool. Any known fobs should be removed from the vicinity of the vehicle.

Important: All previously programmed key fobs will be erased upon completion of the 30-minute programming procedure. The order in which the key fobs are programmed will determine its numbering position within the RCDLR memory. The first key fob programmed will be key fob #1, and the second key fob programmed will be key fob #2. The number stamped on the key fob case is for reference only: #2 can be programmed as #1.

Do not place any known key fobs in the vicinity of the vehicle when programming with Method 2. If the RCDLR recognizes a known key fob during Method 2 programming, the programming mode will resort to Method 1.


Using the scan tool access the following:
• Vehicle Control Systems

• Computer/Integrating Systems

• Module Setup

• Remote Control Door Lock Receiver

• Program Key Fobs

Select Invalidate All Fobs. Press enter on the Tech 2. The Tech 2 will display: FOLLOW SI INSTRUCTIONS. Press enter on the Tech 2 to continue, then press the PROGRAM button. The DIC will display: OFF/ACC TO LEARN.
Press the OFF/ACC portion of the ignition button.
The DIC will display a message: WAIT 10 MINUTES. It will then count down from 10 to 0, one minute at a time.
When the timer reaches 0, the DIC will display OFF/ACC TO LEARN. Repeat steps 3-5 two more times, for a total of 30 minutes. The repeating of steps 3-5 must be done within 3 minutes of the timer reaching zero to prevent the exiting of learn mode. On the second and third sequence, the DIC will briefly display NO FOB DETECTED before transitioning to the timer. This is normal.
At the end of the 30 minutes, a beep will occur and the DIC will display: READY FOR FOB 1. At this time all previously known key fobs have been erased.
Place the replacement key fob in the glove box fob pocket with the buttons facing right.
A beep will occur indicating the fob has been programmed.
Additional key fobs can be programmed by removing fob 1 from the pocket and inserting fob 2. If desired, up to 4 fobs can be programmed. Once 4 fobs have been learned, the DIC will display a message: MAX FOBS LEARNED, and automatically exit the program mode.
If learning less than 4 key fobs, press the OFF/ACC portion of the ignition button to exit the program mode.
Important: Failure to press the UNLOCK button of each key fob will result in that fob being inoperative. Pressing the UNLOCK button finishes the programming sequence and is require to ensure transmitter operation.

Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.

Method 3 - Service Programming System Fob Programming (New RCDLR or No Known Key Fob Available)

This procedure is a 10-minute relearn procedure using the Techline Terminal with SPS software. Once the 10-minute timer has expired, the fobs can be programmed similar to Method 1 using slot programming. A scan tool, Techline Terminal, and a replacement key fob are required to perform this procedure.

This procedure may be done in the OFF power mode.

Connect a scan tool to the vehicle and access the following:
• Body and Accessories

• Keyless Entry

• Module Setup

• Remote Control Door Lock Receiver

• Program Key Fobs- Export Only

Select Request Info and follow the scan tool on-screen instructions.
Disconnect the scan tool from the vehicle and connect the scan tool to a Techline Terminal with the current Service Programming System (SPS) software.
On the Techline Terminal, select Service Programming System and follow the Techline Terminal on-screen instructions. Select "VTD Vehicle Theft Deterrent Learn" under Component Replacement. Ensure that "Prepare RCDLR for key fob programming" is chosen.
Disconnect the scan tool from the Techline Terminal and re-connect the scan tool to the vehicle.
With a scan tool, select Program ECU under Service Programming System.
At this point the scan tool must remain connected for the duration of the 10 minute relearn procedure.
When complete, select CONTINUE on the Tech 2, then exit out to the Vehicle Control Systems menu.
Use the scan tool to access the following:
• Vehicle Control Systems

• Computer/Integrating Systems

• Module Setup

• Remote Control Door Lock Receiver

• Program Key Fobs

Select INVALIDATE ALL FOBS and press the PROGRAM button.
The DIC will display a message: READY FOR FOB 1
Place the replacement key fob in the glove box pocket with the buttons facing right. A beep will occur indicating programming completion. The DIC will display a message: READY FOR FOB 2
If programming additional key fobs, repeat step 12, or press the OFF/ACC portion of the ignition switch to exit programming.
Important: Failure to press the UNLOCK button of each key fob will result in that fob being inoperative. Pressing the UNLOCK button finishes the programming sequence and is require to ensure transmitter operation.

Press the UNLOCK button of each key fob to finalize the programming and confirm system operation.
Clear any DTC's and remove the scan tool.


If you have all four FOBs programmed into the car then you willhave to use method 2. That requires a TECH2, if that is the case I highly recommend that you go to a dealer. Like I said if its not done right your car will be dead in the garage.