How to replace the lock cylinder and ignition switch in Cadillac DeVille and DTS?

In early designs, the lock cylinder is located on the right-hand top of the steering column, and this means one has to first disconnect the negative battery cable, disable the airbag system, remove the steering wheel and turn signal switch. The buzzer switch is pulled out using needle-nose pliers, while a lock cylinder retaining screw is removed. Pulling the lock cylinder straight out of the column also includes detaching PASS key wiring harness for those cars that have it. After placing a new Ignition Lock Cylinder into lock cylinder it must be in turn installed in column aligning tab with keyway and fastened by a retaining screw. PASS key system equipped models use wire terminals which are taped to mechanics wire about 18 inches long and pulled through steering column after routing and connection are checked. The remaining components are reinstalled as needed. About ignition switch, it is located at bottom part of steering column and can only be accessed by lowering column after disabling airbag system. Disconnect ignition switch harness connector and unscrew retaining screws in order to remove an ignition switch that connects with an Ignition Lock Cylinder using an actuating rod. Making sure that switch is in Lock position, attach electrical connector to new switch; connect actuating rod then push switch into position before securing it with screws followed by testing its operation. On later models such as DeVille or Seville, replacing a lock cylinder/ignition switch entails removing the steering column cover or other components necessary to reach release mechanisms, then maneuvering a lock cylinder into Start or Run positions so as to take it off. A replacement Ignition Lock Cylinder should be installed by aligning it with slot and locking tabs, making sure the key is present then clicking it into place.

Genuine Cadillac Deville Ignition Switch

Starter Ignition Switch

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12 Ignition Switches found

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Cadillac Deville Switch,Ignition
Part Number: 1990176
$24.64 MSRP: $120.22
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Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L, 8 Cyl 4.9L
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Cadillac Deville Switch Assembly, Ignition & Start
Part Number: 25725312
$59.49 MSRP: $191.44
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Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Replaces: 25681506
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2004 Cadillac Deville | SEVILLE, SLS, STS | 8 Cyl 4.6L
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Cadillac Deville Switch,Ignition
Part Number: 26022295
$148.39 MSRP: $311.74
You Save: $163.35 (53%)
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Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Cadillac Deville | 4 DOOR | 8 Cyl 4.6L, 8 Cyl 4.9L
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Cadillac Deville Switch, Ignition & Beam Change
Part Number: 1990150
$34.35 MSRP: $110.81
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Product Specifications
- Other Name: SWITCH, Headlamp Dimmer; Headlamp Dimmer Switch, Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1990 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, FUNERAL COACH, LIMOUSINE 4 DOOR | 8 Cyl 4.5L
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Cadillac Deville Switch,Ignition & Start
Part Number: 1990116
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1987 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 5.7L Diesel
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Cadillac Deville Switch,Steering Column Ignition
Part Number: 1990115
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1988 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 5.7L Diesel
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Cadillac Deville Switch Assembly, Ignition & Dimmer
Part Number: 1990163
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Lock Cylinder, Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1993 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, TOURING 4 DOOR | 8 Cyl 4.9L
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Cadillac Deville Switch,Ignition
Part Number: 1990175
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Cadillac Deville | 4 DOOR, DEVILLE | 8 Cyl 4.6L
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Cadillac Deville Switch,Ignition Key Alarm
Part Number: 26022717
Product Specifications
- Other Name: SWITCH, Ignition Switch Warning, Lock, Headlamp,Theft Deterrent or Frt/Rear/Side Object
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1992-1999 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, CONVERSION, DEVILLE, TOURING 4 DOOR | 8 Cyl 4.6L, 8 Cyl 4.9L
- 1982-1990 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, CONVERSION, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 5.7L Diesel
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Cadillac Deville Switch Assembly, Ignition Key Warning Alarm
Part Number: 7804414
Product Specifications
- Other Name: SWITCH, Ignition Switch Warning, Lock, Headlamp,Theft Deterrent or Frt/Rear/Side Object
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1982-1988 Cadillac Deville | 2 DOOR, 4 DOOR, 60 SPECIAL 4 DOOR, BROUGHAM 2 DOOR, BROUGHAM 2 DOOR FWD, BROUGHAM 4 DOOR, BROUGHAM 4 DOOR FWD, FORMAL LIMOUSINE, FUNERAL COACH, LIMOUSINE, LIMOUSINE 4 DOOR, LIMOUSINE 4 DOOR CTR PART | 6 Cyl 4.1L, 6 Cyl 4.3L Diesel, 8 Cyl 4.1L, 8 Cyl 4.5L, 8 Cyl 5.7L Diesel
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Cadillac Deville Switch Asm,Ignition & Start
Part Number: 12450183
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2000-2005 Cadillac Deville | DEVILLE, HIGH LUXURY, TOURING 4 DOOR, TOURING SEDAN | 8 Cyl 4.6L
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Cadillac Deville Switch Asm,Steering Column Ignition (Lock)
Part Number: 26045043
Product Specifications
- Other Name: SWITCH, Ignition Switch; Ignition Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1996-1999 Cadillac Deville | 4 DOOR, DEVILLE | 8 Cyl 4.6L

Cadillac Deville Ignition Switch Parts Questions & Experts Answers

Switch Assembly, Ignition & Start
25725312
Q: How to replace the lock cylinder and ignition switch in Cadillac DeVille and DTS?
A: In early designs, the lock cylinder is located on the right-hand top of the steering column, and this means one has to first disconnect the negative battery cable, disable the airbag system, remove the steering wheel and Turn Signal Switch. The buzzer switch is pulled out using needle-nose pliers, while a lock cylinder retaining screw is removed. Pulling the lock cylinder straight out of the column also includes detaching PASS key wiring harness for those cars that have it. After placing a new Ignition Lock Cylinder into lock cylinder it must be in turn installed in column aligning tab with keyway and fastened by a retaining screw. PASS key system equipped models use wire terminals which are taped to mechanics wire about 18 inches long and pulled through steering column after routing and connection are checked. The remaining components are reinstalled as needed. About ignition switch, it is located at bottom part of steering column and can only be accessed by lowering column after disabling airbag system. Disconnect ignition switch harness connector and unscrew retaining screws in order to remove an ignition switch that connects with an Ignition Lock Cylinder using an actuating rod. Making sure that switch is in Lock position, attach electrical connector to new switch; connect actuating rod then push switch into position before securing it with screws followed by testing its operation. On later models such as DeVille or Seville, replacing a lock cylinder/ignition switch entails removing the steering column cover or other components necessary to reach release mechanisms, then maneuvering a lock cylinder into Start or Run positions so as to take it off. A replacement Ignition Lock Cylinder should be installed by aligning it with slot and locking tabs, making sure the key is present then clicking it into place.