How To Reset Security System For A 1999 Cadillac Deville?


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lesley louis answered
There is only really one guaranteed solution to this and that is to take it into a garage that specializes in this or take it to a dealership. There is plenty of different advice on the Internet explaining how to do this but there are also a lot of people saying it doesn't work. It is probably not a great idea to waste too much time trying out these quick fixes.

Here are a few ways to get in touch with the main dealership:

  • Their website address:
  • If you are calling from the US you can call 1-800-458-8006
  • If you are in Canada their number is 1-800-263-3777 
  • Anywhere else in the world you call 00-1-905-644-4112.
Be sure when you call you have the following details to hand:
  • Name and address.
  • Your vehicle identification number (VIN), you will find this number on your registration.
  • The name and location of your dealership.
  • The mileage of your vehicle.
If you walk into either a garage or a dealership you will also be asked to see some form of ID showing your name.

It may be a good idea to purchase a service manual or an owner manual of past and present Cadillac vehicles, these can also be purchased by calling the following numbers:
  • US: 1-800-551-4123
  • Canada: 1-800-263 3777
Although there isn't an actual email address given on the website, there is a contact page where you can select the question you require and this will trigger an email and a prompt reply. If your question is not showing on the list there is a box where you can freely write your own question.

I am sure it can be extremely frustrating when your security system shuts down but if it was that easy to put right then there would most definitely be more crime.

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