How to remove and install the Neutral Safety Switch on Buick Century?

To remove and install the switch, first apply the parking brake securely, block the wheels, and place the transmission selector in NEUTRAL before disconnecting the shift linkage at the transmission. Next, unplug the electrical harness at the switch, remove the switch mounting bolts, and take out the switch. For installation, align the flats of the new switch with those on the shift shaft, fitting it over the shaft and onto the transmission. If the bolt holes do not align, avoid turning the switch to prevent breaking an internal pin; instead, turn the shift shaft until they do. Install the mounting bolts for the switch, tightening them to 22 ft. lbs. (29 Nm), and reconnect the electrical harness. If the pin is broken, turn the shift shaft two positions from PARK to NEUTRAL, insert a 3/32 in. (2mm) drill bit into the service adjustment hole in the switch, and slowly turn the switch until the drill drops into the switch to a depth of 9/64 in. (3mm). Finally, install the switch mounting bolts, tighten them, and remove the drill bit.

OEM Buick Neutral Safety Switch

Transmission Neutral Safety Switch

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30 Neutral Safety Switches found

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Buick Neutral Safety Switch Part Number: 24221125
$86.84 MSRP: $147.85
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Product Specifications
- Other Name: Switch, Parking/Neutral Position & Back Up Lamp; Back Up Light Switch; Range Sensor; Back-Up Switch; Transmission Safety Starting Switch; Speed Sensing; Back Up Lamp
Fits the following Buick Models:
- Rainier | 2004-2007 | CXL, CXL Plus | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
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Buick Neutral Safety Switch Part Number: 12450002
$48.41 MSRP: $105.72
You Save: $57.31 (55%)
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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
Fits the following Buick Models:
- Century | 1997 | Custom, Limited | 6 Cyl 3.1 L GAS
- LeSabre | 1996-1999 | Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1996 | Base, Ultra | 6 Cyl 3.8 L GAS
- Regal | 1996-1997 | Custom, Gran Sport, GS, Limited, LS, Olympic Gold Edition | 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
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Buick Paddle Switch, Black, Driver Side Part Number: 23156473
$28.44 MSRP: $44.51
You Save: $16.07 (37%)
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Product Specifications
- Other Name: Switch, Automatic Transmission Manual Shift Auxiliary Position; Transmission Range Sensor; Range Sensor; Shift Paddle
- Position: Driver Side
- Replaces: 22771713
Fits the following Buick Models:
- Enclave | 2018-2021 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Paddle Switch, Black, Passenger Side Part Number: 23156471
$24.10 MSRP: $36.36
You Save: $12.26 (34%)
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Product Specifications
- Other Name: Switch, Automatic Transmission Manual Shift Auxiliary Position; Transmission Range Sensor; Range Sensor; Shift Paddle
- Position: Passenger Side
Fits the following Buick Models:
- Enclave | 2018-2021 | Avenir, Base, Essence, Preferred, Premium | 6 Cyl 3.6 L GAS
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Buick Paddle Switch, Passenger Side Part Number: 23156477
$21.07 MSRP: $32.97
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Product Specifications
- Other Name: Switch, Automatic Transmission Manual Shift Auxiliary Position; Transmission Range Sensor; Switch, Transmission Control
- Position: Passenger Side
- Replaces: 13297283
Fits the following Buick Models:
- LaCrosse | 2017-2019 | Avenir, Base, Essence, Preferred, Premium, Sport Touring | 4 Cyl 2.5 L MILD HYBRID EV-GAS (MHEV), 6 Cyl 3.6 L GAS
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Buick Neutral Safety Switch Part Number: 24226755
$92.64 MSRP: $137.88
You Save: $45.24 (33%)
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Product Specifications
- Other Name: Switch, Transmission Control
- Replaces: 24205999
Fits the following Buick Models:
- Lucerne | 2006-2011 | CX, CXL, CXL Special Edition, CXS, Super | 6 Cyl 3.8 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS, 8 Cyl 4.6 L GAS
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Buick 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
Fits the following Buick Models:
- Century | 1998-2003, 1996 | Custom, Limited, Special | 4 Cyl 2.2 L GAS, 6 Cyl 3.1 L GAS
- LeSabre | 1996-1999 | Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1997-2003 | Base, Ultra | 6 Cyl 3.8 L GAS
- Regal | 1998-2003, 1996 | 25th Anniversary Edition, Custom, Gran Sport, GS, GSE, Limited, LS, LSE, Olympic Gold Edition | 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS
- Rendezvous | 2002 | CX, CX Plus, CXL, CXL Plus | 6 Cyl 3.4 L GAS
- Riviera | 1996-1999 | Base | 6 Cyl 3.8 L GAS
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Buick Neutral Safety Switch Part Number: 1994362
Product Specifications
- Other Name: Switch Assembly-Parking/Neutral Position; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Starting Switch Or Speed Sensing; Switch, Transmission Safety Start/Warning
Fits the following Buick Models:
- Skylark | 1994-1995 | Custom, Gran Sport, Limited | 4 Cyl 2.3 L GAS, 6 Cyl 3.1 L GAS
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Buick Neutral Safety Switch Part Number: 15705308
Product Specifications
- Other Name: Switch, Parking/Neutral Position & Back Up Lamp; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Start/Warning; Switch, Starting Or Temperature Switch; Switch, Back Up Lamp
- Replaces: 15679680
Fits the following Buick Models:
- Roadmaster | 1991-1996 | Base, Collector's Edition, Estate Wagon, Estate Wagon Collector's Edition, Limited, Limited Collector's Edition | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
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Buick Neutral Safety Switch Part Number: 10075403
Product Specifications
- Other Name: Switch, Back Up Lamp; Back Up Light Switch; Back-Up Switch
Fits the following Buick Models:
- Century | 1986-1990 | 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 Neutral Safety Switch Part Number: 1994356
Product Specifications
- Other Name: Switch, Parking; Switch, Transmission Safety Start/Warning
Fits the following Buick Models:
- Century | 1994-1995 | Custom, Special | 4 Cyl 2.2 L GAS, 6 Cyl 3.1 L GAS
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Buick 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
Fits the following Buick Models:
- Century | 1988-1996 | 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 Back-Up Switch Part Number: 1994299
Product Specifications
- Other Name: Ns Switch; Back Up Light Switch; Switch, Transmission Safety Start/Warning; Switch, Back Up Lamp
Fits the following Buick Models:
- Electra | 1988-1990 | Limited, Park Avenue, Park Avenue Ultra, T-Type | 6 Cyl 3.8 L GAS
- LeSabre | 1988-1991 | Base, Custom, Limited | 6 Cyl 3.8 L GAS
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Buick Back-Up Switch Part Number: 10094661
Product Specifications
- Other Name: Switch, Back Up Lamp; Back Up Light Switch
Fits the following Buick Models:
- Skylark | 1991-1998 | Base, Custom, Gran Sport, Limited, Luxury Edition, Olympic Gold Edition | 4 Cyl 2.3 L GAS, 4 Cyl 2.4 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.3 L GAS
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Buick 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
Fits the following Buick Models:
- Century | 1988-1996 | 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 Neutral Safety Switch Part Number: 12450159
Product Specifications
- Other Name: Switch, Transmission Safety Starting Switch Or Speed Sensing; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Start/Warning
- Replaces: 11516115
Fits the following Buick Models:
- Skylark | 1996-1998 | Custom, Gran Sport, Limited, Olympic Gold Edition | 4 Cyl 2.4 L GAS, 6 Cyl 3.1 L GAS
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Buick Neutral Safety Switch Part Number: 1994359
Product Specifications
- Other Name: Switch Assembly-Parking/Neutral Position; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Start/Warning
Fits the following Buick Models:
- Riviera | 1992-1993 | Luxury | 6 Cyl 3.8 L GAS
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Buick Neutral Safety Switch Part Number: 12450049
Product Specifications
- Other Name: Switch, Transmission Safety Starting Switch Or Speed Sensing; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Start/Warning
- Replaces: 01994361, 01994346, 1994361, 22595527, 1994346
Fits the following Buick Models:
- Skylark | 1994-1995 | Custom, Gran Sport, Limited | 4 Cyl 2.3 L GAS, 6 Cyl 3.1 L GAS
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Buick Neutral Safety Switch Part Number: 1994363
Product Specifications
- Other Name: Switch Assembly-Parking/Neutral Position; Back Up Light Switch; Back-Up Switch; Switch, Transmission Safety Start/Warning
- Replaces: 1994335
Fits the following Buick Models:
- LeSabre | 1992-1995 | Custom, Limited | 6 Cyl 3.8 L GAS
- Park Avenue | 1992-1995 | Base, Ultra | 6 Cyl 3.8 L GAS
- Riviera | 1995 | Base | 6 Cyl 3.8 L GAS
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Buick Parking Brake Warning Switch Part Number: 10136720
Product Specifications
- Other Name: Switch, Parking Brake Indicator
Fits the following Buick Models:
- Regal | 1988-1993 | Custom, Gran Sport, Limited | 6 Cyl 2.8 L GAS, 6 Cyl 3.1 L GAS, 6 Cyl 3.8 L GAS

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Buick Neutral Safety Switch

Choose OEM Neutral Safety Switch, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Buick's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Buick Neutral Safety Switch. You can shop at highly competitive prices and protect your budget. All our genuine Buick parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Buick Neutral Safety Switch disenables the starting of the engine unless the gear-selection is securely in the park or neutral position. Buick has a history that dates back to 1903 but has continued to evolve with quiet tuning cabins, road-composed suspensions and a future Wildcat EV concept that is promising an all-electric future though without neglecting the space and comfort drivers have relied upon over the years. The lineup is a combination of classic curves and tech that is appropriate to daily commutes and weekend road trips. Long highway drives are serene due to the use of laminated glass, solid body mount and smart sound staging which dampen the wind and tire noise. The speed of steering reaction is also combined with comfy seats to ensure that the teenagers, parents and the grandparents enjoyed the same ride. Neutral Safety Switch is positioned on the transmission range selection lever and performs a function similar to that of a gatekeeper, permitting starter current flow only when the lever is in a neutral/park position to prevent sudden lurching and driveway accidents. Its low wiring profile cuts false crank signals, shields the starter and makes diagnostics work simple to the do-it-yourself owner. Frequent road dirt will seldom be an issue with the sealed contacts, hence the unit will offer miles of silent and unseen protection without needing to be attended to. All the current Buicks gain as the Neutral Safety Switch provides an extra level of fail safety reasoning that is in line with the long tradition of the brand regarding the practicality of safety.

Buick Neutral Safety Switch Parts and Q&A

Neutral Safety Switch
1994255
Q: How to remove and install the Neutral Safety Switch on Buick Century?
A:
To remove and install the switch, first apply the parking brake securely, block the wheels, and place the transmission selector in NEUTRAL before disconnecting the shift linkage at the transmission. Next, unplug the electrical harness at the switch, remove the switch mounting bolts, and take out the switch. For installation, align the flats of the new switch with those on the shift shaft, fitting it over the shaft and onto the transmission. If the bolt holes do not align, avoid turning the switch to prevent breaking an internal pin; instead, turn the shift shaft until they do. Install the mounting bolts for the switch, tightening them to 22 ft. lbs. (29 Nm), and reconnect the electrical harness. If the pin is broken, turn the shift shaft two positions from PARK to NEUTRAL, insert a 3/32 in. (2mm) drill bit into the service adjustment hole in the switch, and slowly turn the switch until the drill drops into the switch to a depth of 9/64 in. (3mm). Finally, install the switch mounting bolts, tighten them, and remove the drill bit.