programming keyless on an '05 Cobalt

[tbuckit1]

Does anyone have the procedure on programming remotes on an 2005 Cobalt?

Thanks in advance

[venus]

If I remember, according to the owners manual you have to take it to the dealer. It can't be done by the owner.

[alblogg]

Yep, they get their $30-50 out of you for about five minutes work.

[tbuckit1]

Thanks for the input...............you can always hope.

[16th hippy]

"they" don't just get paid for how fast they can do a job, but for the knowledge of how to do it.

[graphicassult]

FYI, programming a key fob takes 5 minutes and can be done by the owner, they just need to know the procedure. I might get it at work tomorrow

[GMMerlin]

Transmitter Programming
Important: Up to 4 transmitters can be programmed. Do not operate or program the transmitters in the vicinity of other vehicles that are in the keyless entry program mode. This prevents the programming of the transmitters to the incorrect vehicle. 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. Use care to program the transmitters correctly.
The scan tool must stay connected until all of the transmitters are programmed.



Invalidate All
This procedure will erase all key fobs from memory.

Install a scan tool.
Turn ON the ignition with the engine OFF.
With the scan tool, select Body and Accessories.
Select Keyless Entry.
Select Module Setup.
Select BCM.
Select Program Key Fobs.
Select Invalidate All.
Follow the scan tool on screen instructions.
Remove the scan tool.
Exit the vehicle. Operate all functions on transmitters to verify correct system operation.

Next Available Slot
Incremental programming allows for a transmitter to be reprogrammed into the next available location without affecting the currently programmed transmitters. Previously programmed transmitters will not be erased during this procedure.

Important: If all 4 slots are programmed, the Invalidate All procedure will need to be performed to allow transmitter programming.


Install a scan tool.
Turn ON the ignition with the engine OFF.
With the scan tool, select Body and Accessories.
Select Keyless Entry.
Select Module Setup.
Select BCM.
Select Program Key Fobs.
Select Next Available Slot.
Follow the scan tool on screen instructions.
Remove the scan tool.
Exit the vehicle. Operate all functions on transmitters to verify correct system operation.

[graphicassult]

I was shown a way to program Key Fobs without the scan tool. It calls for the Tech2 on the 2006 monte carlos but all you have to do is goto the DIC and select PROGRAM KEY FOBS and hold lock and unlock.

[GMMerlin]

Originally Posted by graphicassult

I was shown a way to program Key Fobs without the scan tool. It calls for the Tech2 on the 2006 monte carlos but all you have to do is goto the DIC and select PROGRAM KEY FOBS and hold lock and unlock.

Well the Monte Carlo and the Cobalt are 2 different body styles and have different operating systems...but being a "certified GM mechanic" you already knew that.