To program 2003 Buick key??

Sep 09, 2003 7 Replies

I have a 2003 Buick LeSabre Custom. Bought a key blank, and had it cut to open doors & trunk. How do I program the key to work in the ignition? Can anybody provide a step-by-step series of buttons to press, or do I have to pay a dealer to do this? Thanks!


The owners manual in my 99 Venture has the procedure for it. Did you check your manual?

You need a GM Tech 2 scan tool to do it, so you pretty much have to take it to the dealer..

Strangely enough, though the '03 Buick has the same Pass-Key III anti-theft system as the Venture, the keys don't appear to be user-programmable on it..

Bobo Says......

Adding Keys Domestic

Important a.. You may add up to 10 additional master keys or valet keys using this procedure when a learned master key is available. b.. This procedure adds keys only. The procedure does not erase previously learned keys. c.. The keys to be learned must duplicate the mechanical cut of the current key. d.. If more than one valet key is to be learned, immediately precede each valet key with a learned master key.

Thank you for the info. It worked! I didn't believe it would be so simple. Wonder what a dealer would have charged?

Fewer drivers will ever read the owners manual these days. I'm convinced that there is a job opportunity for some people... be in the business of reading correct information out of an owners manual.

I'm just the opposite. When I got my most recent GM car, I read the owners manual, and then I read or browsed the Helm service manuals.

---Bob Gross---

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