Reset factory security system


Asked by Jul 30, 2016 at 01:13 PM about the 2003 Buick LeSabre Custom

Question type: General

How do you reset security system on Buick
lesabre w/pass key 3, car was broken into&
lock cylinder was damaged& battery cables cut
parts have been replaced. Was trying to
program new key, & the only thing it does is
make 1 little buzz when battery is hooked up.

1 Answer

Justin Hatfield

RELEARN PROCEDURE: Turn the key on, with the engine OFF. Try to start the engine, then release the key to ON, Engine will not start. Watch the security telltale, after about 10 mins, it will turn OFF. Turn OFF the ignition, and wait 5 seconds. Repeat steps 1 through 4 two more times for a total of 3 cycles/30 minutes. You must turn the ignition OFF for 30 seconds before attempting to start the vehicle after the 3 cycles. Then start the engine .

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