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goodwrench9124, ASE Certified Technician
Category: Chevy
Satisfied Customers: 3432
Experience:  Ase Master Certified, GM Master Certified Tech. Awarded GM Top performer, Hybrid certified
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2007 cobalt: you still have the old working chipped key

Resolved Question:

How do you program a new, cut, and chipped 2007 cobalt key if you still have the old working chipped key.
Submitted: 9 years ago.
Category: Chevy
Expert:  goodwrench9124 replied 9 years ago.
Hello, and welcome to JA!!! do you have a working key????? that will start the vehicle??
Customer: replied 9 years ago.
yes i have a working key that will start the vehicle and i have an unprogrammed key that will open the doors but needs to be coded for the car
Expert:  goodwrench9124 replied 9 years ago.

Hello, here is the instructions for learning new key!!!

Adding Keys


To initiate, this procedure requires that a learned master key be available.
A total of 10 master keys or valet keys may be programmed to a single vehicle.
This procedure adds keys only. The procedure does not erase previously learned keys.
The keys to be learned must duplicate the mechanical cut of the current key.
If more than one valet key is to be learned, immediately precede each valet key with a learned master key.


  1. With a previously learned master key, turn ON the ignition, with the engine OFF.
  2. Turn OFF the ignition and remove the key.
  3. Within 10 seconds insert the key to be learned. Turn ON the ignition with the engine OFF. The vehicle has now learned the new key.
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