How do I relearn the anti theft system in my 2002 Buick LeSabre

Asked by May 17, 2018 at 01:01 AM about the 2002 Buick LeSabre Custom Sedan FWD

Question type: Maintenance & Repair

13 Answers

15

I thought it would come out more clearly than that. Sorry, I tried to put it in sort of a "bullet" format, but clearly that didn't work. Maybe write it down if it helps. Lol

15

I think you have the "Passlock III" system. Having a hard time posting on here so bare with me. step 1. Insert the master key with the black head into the ignition lock cylinder.

15

Step 2. Turn the key to ON but do not start the engine. The SECURITY light will turn on and stay on.

15

Step 3. Wait 10 minutes or until the SECURITY light turns off.

15

Step 4. Turn the key OFF for 5 seconds.

15

Step 5. Turn the key to ON but do not start the engine. The SECURITY light will turn on and stay on.

15

Step 6. Wait 10 minutes or until the SECURITY light turns off.

15

Step 7. Turn the OFF for 5 seconds.

15

Step 8. Turn the key to ON but do not start the engine. The SECURITY light will turn on and stay on.

15

Step 9. Wait 10 minutes or until the SECURITY light to turn off.

15

Step 10. Turn the key to OFF. The key transponder will be learned on the next start cycle.

15

Step 11. Start the vehicle. If it starts and runs normally, the relearn is complete.

15

If you have more than one key, you have to do this for EACH key. UGH! Redundant I know! Hope this works and helps!

Your Answer:

LeSabre

Looking for a Used LeSabre in your area?

CarGurus has 3 nationwide LeSabre listings and the tools to find you a great deal.

Postal Code:

Buick LeSabre Experts

  • #1
    Tom Demyan
    Reputation
    2,560
  • #2
    John Saffrahn
    Reputation
    2,250
  • #3
    Austin Gaboda
    Reputation
    1,510
View All

Related Models For Sale

Used Buick Regal
3 Great Deals out of 135 listings starting at $6,988
Used Chevrolet Impala
21 Great Deals out of 882 listings starting at $2,894
Used Buick Century
10 listings
Used Honda Accord
34 Great Deals out of 1,667 listings starting at $3,490
Used Toyota Camry
37 Great Deals out of 2,079 listings starting at $2,450
Used Ford Taurus
16 Great Deals out of 371 listings starting at $3,900
Used Ford F-150
130 Great Deals out of 11,658 listings starting at $3,900
Used Cadillac DeVille
14 listings
Used Chevrolet Malibu
33 Great Deals out of 1,832 listings starting at $2,950

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.