How do I reset the security on my 1999 Cadillac deville base 4.6l v8

40

Asked by Jul 28, 2016 at 07:04 PM about the 1999 Cadillac DeVille Sedan FWD

Question type: Maintenance & Repair

The security light is flashing and it won't crank. I've
unhooked the battery for 12 hours, turned on the key for 30
min, rubbed both posts together for 2 min (I know). The
security light keeps flashing still. Can anyone help me  ????

6 Answers

73,935

The problem is most likely the lock cylinder. You have the VATS (Vehicle Anti-Theft Security) system. The replacement lock cylinder will come with a template for making new ignition keys. BUT you must visit a GM dealer or a good lock smith to determine which VATS key you have. There were 15 possibilities. Otherwise the new keys won't work. I'm assuming your ignition key has a chip on it like the one pictured. HTH. -Jim

1 of 1 people found this helpful.
40

Yes, but it turns over. The fuel pump doesn't click on like you'd normally hear, replaced the fuel pump. Still the same thing. I have 2 sets of keys and it does it with both.

1 of 1 people found this helpful.
73,935

Have you checked or replaced the fuel pump relay & the fuel pump fuse? HTH. -Jim

40

Just put a new fuel pump sending unit on it

1 of 1 people found this helpful.
40

Relays and fuses too.

2 of 2 people found this helpful.
73,935

You'll need to see if you have power at the fuel pump. If so, the pump is defective. HTH. - Jim

Your Answer

DeVille

Looking for a Used DeVille in your area?

CarGurus has 1,428 nationwide DeVille listings starting at $2,695.

ZIP:

Cadillac DeVille Experts

  • #1
    kikero
    Reputation
    2,270
  • #2
    Js08016
    Reputation
    1,970
  • #3
    Cynthiasmith
    Reputation
    1,770
View All

Related Models For Sale

Used Cadillac Eldorado
331 listings starting at $2,200
Used Cadillac Seville
297 listings starting at $1,200
Used Lincoln Town Car
23 Great Deals out of 1,605 listings starting at $2,450
Used Cadillac Escalade
295 Great Deals out of 11,542 listings starting at $1,200
Used Chevrolet Impala
560 Great Deals out of 33,367 listings starting at $1,400
Used Buick Regal
148 Great Deals out of 6,585 listings starting at $3,995
Used Buick Park Avenue
357 listings starting at $1,995
Used Ford Mustang
450 Great Deals out of 42,576 listings starting at $1,488
Used BMW 7 Series
125 Great Deals out of 5,092 listings starting at $1,770

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.