how do you program a key fob for an 03' avalanche?

Question

i have a second key fob i want to program, but the dealer is to far and to expensive.. thx

Answer 1

Have both key fobs with you.Push and hold the power door lock unlock botton.Cycle the ingnition switch forward and backward three times ending up with the key in the off position.Release the door unlock botton. The locks should lock then unlock This is program mode.Push and hold the lock and unlock bottons on keyfob at the same time.When system cycles repeat on other key fob.When done turn key foreward to exit program mode.Have a great day.

Answer 2

You are able to self program a key fob to your 2003 Avalanche. The self programming instructions are listed below. We sell factory OEM key fobs up to 80% off dealer prices. If you ever lose, misplace, damage, or need a spare key fob we've got you covered! We also have Free self programming instructions on our website to help save you more money.

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1. Close all doors

2. Insert key into ignition

3. Hold down the power UNLOCK button on the driver's door panel, continue to hold down
until instructed to release in step 9.

4. Perform steps 5 through 8 in a fairly rapid succession.

5. Turn the ignition to the ON position (as far as you can go without starting the engine.)

6. Turn the ignition to the OFF position.

7. Turn the ignition to the ON position (as far as you can go without starting the engine.)

8. Turn the ignition to the OFF position.

9. Release the power UNLOCK button on the door panel. The vehicle should respond by
door locks locking and unlocking automatically. (If locks do not cycle after you let go,
not before you let go of the unlock button, then the vehicle has not entered programming
mode and you must start procedure over. Remove key from ignition, open drivers door
and return to step 1 ). If the locks do cycle automatically then proceed to step 10.

10. Hold down the LOCK and UNLOCK buttons on the remote until the doors lock and
unlock. This may take up to 30 seconds.

11. Repeat step 10 NOW for each additional remote. (Including any existing remotes).

12. Turn the ignition to the ON position to exit the programming mode.

13. Test remote(s).