Having problems with your 1999 Buick Century ?
Why does the security light come on in my car?
I hope this is not coming too late! You might still be in time to save your car before the worst happens instead of having to rush for a solution with your car dead...like it happened to me. There is a detailed write-up here: http://vatspasskey.com . The guy is great, this was the only way I was able to save my Park Avenue.
Repair Help & Product Troubleshooting for 1999 Buick Century
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