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Ask GM Tech (Cam) Your Own Question
GM Tech (Cam)
GM Tech (Cam), Chevy Technician
Category: Chevy
Satisfied Customers: 29572
Experience:  GM Grand Master Technician 2007. 14 years experience.
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I can't program my ignition key, Neither. It's a new key. I

Customer Question

I can't program my ignition key
JA: Is the key stripped or worn?
Customer: Neither. It's a new key. I lost my only key yesterday.
JA: What is the model/year of your Chevy?
Customer: 2008 chevy avalanche
JA: Are you fixing your Avalanche yourself? What have you tried so far?
Customer: Turning the truck on for ten minutes then trying to start it.
JA: Anything else you want the mechanic to know before I connect you?
Customer: That's it.
Submitted: 1 year ago.
Category: Chevy
Expert:  GM Tech (Cam) replied 1 year ago.

Hi there, I am Cam.
With your Av, do you have any original keys left for it?

Customer: replied 1 year ago.
No sir
Customer: replied 1 year ago.
Any suggestions
Expert:  GM Tech (Cam) replied 1 year ago.

Oh no, thats no good. Adding keys when you lost one but still have one is easy enough, but replacing all with non keys can be a problem. Assuming your vehicle is from the USA not export or Canada, you can follow this.

This 30-minute learn procedure should be used when all vehicle keys are desired to be replaced or reprogrammed. This procedure will erase all previously learned vehicle keys from the TDM. Once the 30-minute learn procedure has been completed, any remaining vehicle keys may be programmed using the Adding Keys procedure to ensure their continued functionality.

Important: The TDM learns the key transponder information upon the ignition switch transition from OFF to ON. You must turn the ignition OFF before attempting to start the vehicle.

  1. With an unlearned master vehicle key, turn ON the ignition, with the engine OFF.
  2. Observe the security indicator, after approximately 10 minutes the telltale will turn off.
  3. Turn OFF the ignition, and wait 5 seconds.
  4. Repeat steps 1–3 two more times for a total of 3 cycles or 30 minutes.
  5. With a master vehicle key, start the vehicle. The vehicle has now learned the key transponder information.
Customer: replied 1 year ago.
I paid 5 dollars for nothing?
Expert:  GM Tech (Cam) replied 1 year ago.

No, You asked and I have posted the information to relearn the keys.

Customer: replied 1 year ago.
what can I do? I don't have a key.
Expert:  GM Tech (Cam) replied 1 year ago.

You have a replacement key, the instructions I posted are to relearn all new keys. Your unlearned Master key is your new unlearned key. Follow through the directions carefully. It will take you 30+ minutes. Do not cut any of the times short or you will need to restart the whole procedure.

Customer: replied 1 year ago.
Expert:  GM Tech (Cam) replied 1 year ago.

How did you make out?