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Ignition switch replacement

Tiny
JKRUG
  • MEMBER
  • 1999 CADILLAC SEVILLE
  • 15,000 MILES
I have the radio and heater removed, two screws on the radio side removed, electrical connectors removed, I can release the lock tab for the park/lock cable but can't seem to push it back far enough to remove it from the housing, also not sure how to remove ignition bezel and light ring
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Tuesday, March 27th, 2012 AT 5:12 AM

20 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Hello,

Start by disconnecting the battery here are the instruction on how to replace the ignition switch int he diagrams below. Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.
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Tuesday, March 27th, 2012 AT 7:44 AM
Tiny
JKRUG
  • MEMBER
  • 6 POSTS
The ignition switch is in the dash not the steering colum.
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Tuesday, March 27th, 2012 AT 7:58 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Which one are you trying to replace? Is it the ignition switch or the ignition cylinder lock?
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Tuesday, March 27th, 2012 AT 8:34 AM
Tiny
JKRUG
  • MEMBER
  • 6 POSTS
The one in the dash the key goes into.
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Tuesday, March 27th, 2012 AT 8:57 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
See above
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Tuesday, March 27th, 2012 AT 10:28 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Above is your ignition cylinder lock for 99 Caddy deville
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Tuesday, March 27th, 2012 AT 10:30 AM
Tiny
JKRUG
  • MEMBER
  • 6 POSTS
I have a '99 Seville SLS, would that be a different procedure than a Deville.
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Tuesday, March 27th, 2012 AT 2:21 PM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Its the same
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Tuesday, March 27th, 2012 AT 3:00 PM
Tiny
JKRUG
  • MEMBER
  • 6 POSTS
I'm trying to attach a photo, the photo you added does not look like my ignition lock cylinder, mine is in the dash, I have to go through the radio, hvac opening to get to it, it's not in the steering colum
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Tuesday, March 27th, 2012 AT 4:33 PM
Tiny
JKRUG
  • MEMBER
  • 6 POSTS
I don't know how to attach photos, if there's a number I can message them to I'd like for you to see them so you can see I'm not crazy.
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Tuesday, March 27th, 2012 AT 5:23 PM
Tiny
LOGFORNEY
  • MEMBER
  • 1 POST
You have to drop the steering column also. There is another bolt that can only be accessed from the steering column side.

As far as the "ignition bezel and light ring", they are part of the lock cylinder, which when you depress the metal tab through the radio opening, you have to get a good grip around the ring and pull the lock cylinder out. You may need to use a screwdriver to break it loose, but be careful not to gouge your dash. Once you drop the steering column you should be able to get better access to get the park lock cable out. The switch is removed through the radio opening. You have to twist it to get it out.
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Monday, April 16th, 2012 AT 11:27 PM
Tiny
BOB BEEMAN
  • MEMBER
  • 1 POST
  • 1999 CADILLAC SEVILLE
  • V8
  • FWD
  • AUTOMATIC
  • 104,000 MILES
How so you change the ignition switch? Thank you.
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Thursday, May 7th, 2020 AT 11:28 AM (Merged)
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
REMOVAL PROCEDURE


https://www.2carpros.com/forum/automotive_pictures/12900_i1_1.gif



Apply the parking brake.
CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.

Disconnect negative battery cable. This will maintain the key code.
CAUTION: Refer to SIR Handling Caution in Cautions and Notices.

Disable the SIR system. See: Body and FrameInterior Moulding / TrimAir Bag(s) Arming and DisarmingService and Repair
Remove the radio or the navigation display module.
Remove the AC/heater control head.
Remove the knee bolster.
Remove the steering column.
Disconnect the electrical connectors from the ignition switch.
Disconnect the park lock cable from the ignition switch. Refer to Park Lock Cable Replacement (LHD) in Automatic Transaxle-4T80-E.
Remove the ignition switch cylinder.
Remove 1 fastener from the access hole in the IP at the steering column opening.


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Remove 2 fasteners from the radio opening hole. One fastener (2) is at the top of the opening and the other fastener is near the opening edge. The head of the screw is facing forward. This is a blind fastener. It can not be seen when installed.


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Rotate the switch in the IP.
Remove the ignition switch through the radio opening.
Remove the fasteners (1 2, 3) securing the ignition switch bracket to the switch.
Remove the ignition switch bracket from the ignition switch.

INSTALLATION PROCEDURE


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Install the ignition switch housing bracket to the switch.
Install the fasteners (1, 2, 3).


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Install the ignition switch into the radio opening.
Install the 2 fasteners to the radio opening hole, one fastener (2) is at the top of the opening and the other fastener is near the opening edge.


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Install 1 fastener to the access hole in IP at steering column opening.
Install the ignition switch cylinder to the ignition switch housing.
Install the park lock cable. Refer to Park Lock Cable Replacement (LHD) in Automatic Transaxle-4T80-E.
Connect the electrical connectors.
Install the steering column.
Install the knee bolster.
Install the AC/heater control head.
Install the radio or the navigation display module.
Enable the SIR system.
Connect the negative battery cable.
Release the parking brake.

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Thursday, May 7th, 2020 AT 11:28 AM (Merged)
Tiny
BROWNSGUY
  • MEMBER
  • 1 POST
  • CADILLAC SEVILLE
How do I change the ignition cylinder?Do I have to remove the steering wheel?How do I do that?
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
To change the ignition put the key in and turn it to the on position from there examine around the ignition you should find a little hole or little button push it wiht a punch and pull out the ignition. Should not require to much force.
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
Even if you do get it out and changed, you still will have to tow it to the dealer and reprogram the scurity system to match the new key
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
BLACKOP555
  • MECHANIC
  • 10,371 POSTS
Depends on the year of the car.
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
BUZZSAW
  • MECHANIC
  • 1,198 POSTS
No it doesnt on a caddy
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
BOBPAT1
  • MEMBER
  • 3 POSTS
  • 1989 CADILLAC SEVILLE
Electrical problem
1989 Cadillac Seville V8 Two Wheel Drive Automatic

how do I replace an ignition switch cylinder
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Thursday, May 7th, 2020 AT 11:29 AM (Merged)
Tiny
FACTORYJACK
  • MECHANIC
  • 4,159 POSTS
It requires some steering column disassembly, and if it is a telescopic column, some special tools. The airbag, steering wheel, and turn signal switch need to be removed, along with lower knee bolster and panel. The cylinder comes with wire leads that need to be fed down the column.
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-1
Thursday, May 7th, 2020 AT 11:29 AM (Merged)

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