How to ensure proper alignment of the Neutral Safety Switch on Buick Century?

Toward replacing the park/neutral position switch start with accessing the parking brake while blocking wheels before moving the vehicle into neutral. First disconnect the throttle body air inlet duct followed by automatic transaxle range selector cable and then disconnect the wiring harness connectors. Start by removing the pnp switch mounting bolts and automatic transaxle range selector lever to extract the pnp switch. Use the j 41545 park/neutral switch alignment tool while installing to position the shift shaft in neutral before inserting the new pnp switch which requires this setting and should not receive any rotation. Position the flat surfaces of the shift shaft against the pnp switch's matching surfaces before you place the switch onto the mounting boss while using proper fasteners in their respective locations. Tighten the pnp switch mounting bolts to 25 nm (18 ft. Lbs.)reinstall the automatic transaxle range selector lever followed by the wiring harness connectors and the automatic transaxle range selector cable. After installation, verify that the engine starts only in the park or neutral position; a check of the pnp switch and inspection of shifter and range selector lever needs to be done when the engine begins in any position other than park or neutral. Complete the installation by adding back the throttle body air inlet duct followed by wheel block removal and releasing the parking brake.

OEM Buick Century Neutral Safety Switch

Transmission Neutral Safety Switch

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9 Neutral Safety Switches found

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Buick Century Neutral Safety Switch
Part Number: 1994255
$21.41 MSRP: $104.48
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Product Specifications
- Other Name: Nsbu Switc; Back Up Light Switch; Back-Up Switch; Transmission Safety Starting or Speed Sensing; Safety Start/Warning; Back Up Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991-1995, 1985-1987 Buick Century | Custom, Estate Wagon, Limited, Special, T-Type | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL
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Buick Century Neutral Safety Switch
Part Number: 1994356
$77.83 MSRP: $157.69
You Save: $79.86 (51%)
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Product Specifications
- Other Name: Switch, Parking; Switch, Transmission Safety Start/Warning
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1994-1995 Buick Century | Custom, Special | 4 Cyl 2.2 L GAS, 6 Cyl 3.1 L GAS
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Buick Century Neutral Safety Switch
Part Number: 12450002
$34.97 MSRP: $109.10
You Save: $74.13 (68%)
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Product Specifications
- Other Name: Switch, Transmission Safety Starting Switch Or Speed Sensing; Back Up Light Switch; Back-Up Switch
- Replaced by: 88987185
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1997 Buick Century | Custom, Limited | 6 Cyl 3.1 L GAS
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Buick Century Neutral Safety Switch
Part Number: 1994223
Product Specifications
- Other Name: Switch Assembly-Automatic Transmission Neutral Start; Back Up Light Switch; Back-Up Switch; Transmission Safety Starting or Speed Sensing; Back Up Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984 Buick Century | Custom, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 4.3 L DIESEL
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Buick Century Neutral Safety Switch
Part Number: 12450157
Product Specifications
- Other Name: Switch, Transmission Safety Starting Switch Or Speed Sensing; Range Sensor; Switch, Transmission Safety Start/Warning
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1998-2003, 1996 Buick Century | Custom, Limited, Special | 4 Cyl 2.2 L GAS, 6 Cyl 3.1 L GAS
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Buick Century Neutral Safety Switch
Part Number: 10075403
Product Specifications
- Other Name: Switch, Back Up Lamp; Back Up Light Switch; Back-Up Switch
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1986-1990 Buick Century | Custom, Estate Wagon, Limited, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS
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Buick Century Neutral Safety Switch
Part Number: 1994290
Product Specifications
- Other Name: Switch Assembly-Automatic Transmission Neutral Start; Back Up Light Switch; Back-Up Switch; Transmission Safety Starting/Sensing; Back Up Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1996 Buick Century | Custom, Estate Wagon, Limited, Special | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS
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Buick Century Neutral Safety Switch
Part Number: 1994289
Product Specifications
- Other Name: Switch Assembly-Automatic Transmission Neutral Start; Back Up Light Switch; Back-Up Switch; Transmission Safety Starting/Sensing; Back Up Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1988-1996 Buick Century | Custom, Estate Wagon, Limited, Special | 4 Cyl 2.2 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS
View related parts
Buick Century Neutral Safety Switch
Part Number: 1994253
Product Specifications
- Other Name: Switch Assembly-Automatic Transmission Neutral Start; Back Up Light Switch; Back-Up Switch; Transmission Safety Starting/Sensing; Back Up Lamp
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1991, 1986-1987, 1984 Buick Century | Custom, Estate Wagon, Limited, Special, T-Type | 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 3.0 L GAS, 6 Cyl 3.3 L GAS, 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L DIESEL

Buick Century Neutral Safety Switch

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Buick Century Neutral Safety Switch Parts Questions & Experts Answers

Neutral Safety Switch
12450157
Q: How to ensure proper alignment of the Neutral Safety Switch on Buick Century?
A: Toward replacing the park/neutral position switch start with accessing the parking brake while blocking wheels before moving the vehicle into neutral. First disconnect the throttle body air inlet duct followed by automatic transaxle range selector cable and then disconnect the wiring harness connectors. Start by removing the pnp switch mounting bolts and automatic transaxle range selector lever to extract the pnp switch. Use the j 41545 park/neutral switch alignment tool while installing to position the shift shaft in neutral before inserting the new pnp switch which requires this setting and should not receive any rotation. Position the flat surfaces of the shift shaft against the pnp switch's matching surfaces before you place the switch onto the mounting boss while using proper fasteners in their respective locations. Tighten the pnp switch mounting bolts to 25 nm (18 ft. Lbs.)reinstall the automatic transaxle range selector lever followed by the wiring harness connectors and the automatic transaxle range selector cable. After installation, verify that the engine starts only in the park or neutral position; a check of the pnp switch and inspection of shifter and range selector lever needs to be done when the engine begins in any position other than park or neutral. Complete the installation by adding back the throttle body air inlet duct followed by wheel block removal and releasing the parking brake.

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