How to replace the Neutral Safety Switch on GMC Envoy?

To change the park/neutral position switch, first put on a parking brake and shift the transmission in the neutral setting. Lower the vehicle and take off the nut fastening the transmission control lever to manual shaft, then unfasten the transmission control lever. Disengage the electrical connectors from the switch and unscrew the bolts that hold the park/neutral position switch to the transmission, then pull the switch from the manual shaft. If the switch will not slide off readily, file the outer edge of the manual shaft to clear any burrs. For installation, align the switch hub flats with the manual shaft flats and slide, the switch until the mounting bracket made contact with the mounting bosses of the transmission. In case a new switch is being installed it is possible that it may come with a positive assurance bracket thus eliminating the need of a necessity of neutral position adjustment tool. Mount the switch on the transmission using two bolts finger tight and install the j 41364-aa position adjustment tool (J 41364-AA) on the switch so seats on the slots. Rotate the tool until the upper locator pin will line up with the slot with the switch then tighten the bolts to 25 nm(18ftlbs). Remove the j 41364-a from the switch and where applicable, remove the positive assurance bracket. Reconnect the electrical connectors to the switch, install the transmission control lever to the manual shaft with the nut, and tighten the control lever nut to 25 nm (18 ft. Lbs.). Finally, lower the vehicle and try the switch to determine whether it is working well, the engine should only start when the indicator's position is p (Park) or n (Neutral). If it does not work properly, change the switch.

How to replace the Neutral Safety Switch on GMC Canyon?

In order to remove the park/neutral back up switch, you should first set the park brake and move the transmission into neutral. Lift and support the vehicle, loosening the nut that holds the transmission control lever to the manual shaft and the lever as well. Detaching the park/neutral back up switch away from the transmission using its bolts, then disconnect the electrical connector from it. If the switch doesn't slide off the manual shaft, file off burrs at the outer edge of the manual shift shaft. Mount the new neutral park back up switch onto the manual shaft by aligning the switch hub flats to the flat on the transmitting shaft and slid onto the shaft until the mounting bracket contacts to the transmission bosses. If the switch that is being installed is new, it will include a positive assurance bracket, and thus there will be no need for a j 41364 -a park neutral switch aligner. Loosely install the two bolts for the switch and then mount it onto the switch by ensuring the alignment of the slots with tabs on the tool). Rotate the switch until the upper locator pin aligns with the slot on the switch, then tighten the switch bolts to 27 Nm (20 ft-lbs). Also, remove the j 41364-a (and positive assurance bracket where applicable). Reconnect the electrical connector to the switch and install the transmission control lever with nut tighten to 20 nm (15 ft. Lbs.). Reduce the vehicle, set the automatic transmission range selector cable and examine the switch for its ability to work, as the engine is only started when the switch is in the p (Park) or n (Neutral) positions; if the switch does not work well, replace it.

How to service and repair the Neutral Safety Switch on an Allison Automatic Transmission on GMC Sierra 1500?

The first step for transmission position switch/sensor and allison automatic transmission repair requires control valve assembly removal from the transmission housing. A t27 torx(R) bit should be used for detent lever/ims retaining bolt removal yet this bolt needs replacement because of its thread-applied patch lock material. The transmission case surface that surrounds the spherical pin requires special care to remain free of marks because an unmarred surface forms the essential seal between the control valve assembly and transmission case. You need to avoid twisting the spherical pin because doing so can result in transmission case harm. Caretakers should apply a protective plate against the spherical pin before extracting it from the transmission casing. Pass the manual shift shaft through the detent lever/ims assembly and the manual shift shaft seal before rotating the detent lever/ims assembly to disengage the park pawl apply assembly for removal of the assembly. To install put the new detent lever/ims assembly into the transmission case and align it with the park pawl apply assembly then insert the manual shift shaft through the manual shift shaft seal and the detent lever/ims assembly . Slip the manual shift shaft into its set position inside the transmission case before adding a spherical pin to maintain the manual shift shaft in position. Insert the detent lever/ims retaining bolt using a t27 torx(R) bit and secure it at 10 n.m (92 lb in). The completion of fastlearn under a scan tool helps update tcm adaptive values for new components which prevents slow adaptive mode and ensures proper adaptive value convergence.

OEM GMC Neutral Safety Switch

Transmission Neutral Safety Switch

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GMC Back-Up Switch
Part Number: 19152823
$12.99 MSRP: $36.43
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Product Specifications
- Other Name: Switch, Back Up Lamp; Back Up Light Switch; Switch, Transmission Safety Starting or Speed Sensing; Safety Start/Warning Switch.
- Replaces: 88996477, 23049569
Fits the following GMC Models:
- C1500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1994-2001, 1991 | Base, Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K1500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra SLX, Sierra Special, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K2500 | 1988-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K2500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Neutral Safety Switch
Part Number: 29540479
$163.77 MSRP: $320.64
You Save: $156.87 (49%)
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Product Specifications
- Other Name: Switch Kit, Transmission Safety Starting Switch Or Speed Sensing; Switch Kit, Safety Starting Switch; Transmission Safety Start/Warning; Back Up Lamp
- Replaced by: 19540535
Fits the following GMC Models:
- Sierra 1500 | 2003-2004 | Base, Denali, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 2003-2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2003-2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2003-2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Yukon | 2003-2004 | Denali, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 1500 | 2003-2004 | Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2003-2004 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Neutral Safety Switch
Part Number: 24229422
$74.42 MSRP: $138.86
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Product Specifications
- Other Name: Switch, Parking/Neutral Position & Back Up Lamp; Range Sensor; Transmission Safety Starting Switch; Speed Sensing; Back Up Lamp
- Replaced by: 24298931
Fits the following GMC Models:
- C1500 | 1996-1999 | Sierra GT, Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1996-2000 | Sierra SL, Sierra SLE, Sierra SLT | 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Envoy | 2003 | SLE, SLT | 6 Cyl 4.2 L GAS
- Envoy XL | 2003 | SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Jimmy | 1997-2001 | Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- K1500 | 1996-1999 | Sierra SL, Sierra SLE, Sierra SLT, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1996-1999 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
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GMC Neutral Safety Switch
Part Number: 24258550
$34.06 MSRP: $50.03
You Save: $15.97 (32%)
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Product Specifications
- Other Name: Switch, Transmission Control; Range Sensor; Switch, Throttle Control (Electric)
- Replaces: 24242938, 24246427
Fits the following GMC Models:
- Canyon | 2015-2022 | All Terrain, AT4, Base, Denali, Elevation, Elevation Standard, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
- Savana 2500 | 2021-2023 | Base, LS, LT | 4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
- Savana 3500 | 2021-2023 | Base, LS, LT | 4 Cyl 2.8 L DIESEL, 6 Cyl 4.3 L FLEX, 6 Cyl 4.3 L GAS, 8 Cyl 6.6 L GAS
- Sierra 2500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
- Sierra 3500 HD | 2020-2023 | AT4, Base, Denali, Pro, SLE, SLT | 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L FLEX, 8 Cyl 6.6 L GAS
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GMC Neutral Safety Switch
Part Number: 29541852
$90.62 MSRP: $155.64
You Save: $65.02 (42%)
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Product Specifications
- Other Name: Switch Kit, Transmission Safety Starting Switch Or Speed Sensing; Switch Kit, Safety Starting Switch; Transmission Safety Start/Warning; Back Up Lamp
Fits the following GMC Models:
- Sierra 1500 | 2004-2005 | Base, Denali, Hybrid, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2004-2005 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2004-2005 | Base, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Yukon | 2004-2005 | Denali, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 1500 | 2004-2005 | Denali, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2004-2005 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Neutral Safety Switch
Part Number: 24221125
$81.16 MSRP: $138.18
You Save: $57.02 (42%)
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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 GMC Models:
- Canyon | 2004-2008 | SL, SLE, SLT, WT, Z71 Fleet, Z71 SL, Z71 SLE, Z85 SL, Z85 SLE | 4 Cyl 2.8 L GAS, 4 Cyl 2.9 L GAS, 5 Cyl 3.5 L GAS, 5 Cyl 3.7 L GAS
- Envoy | 2004-2009 | Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Envoy XL | 2004-2006 | Denali, SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Envoy XUV | 2004-2005 | SLE, SLT | 6 Cyl 4.2 L GAS, 8 Cyl 5.3 L GAS
- Safari | 2005 | Base, SLE, SLT | 6 Cyl 4.3 L GAS
- Savana 1500 | 2004-2010 | Base, LS, LT, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS
- Savana 2500 | 2004-2010 | Base, LS, LT, SLE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Savana 3500 | 2004-2010 | Base, LS, LT, SLE | 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 1500 | 2003-2008 | Base, Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L GAS
- Sierra 1500 Classic | 2007 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Neutral Safety Switch
Part Number: 14094368
$14.62 MSRP: $24.07
You Save: $9.45 (40%)
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Product Specifications
- Other Name: Switch; Back Up Light Switch; Clutch Switch; Back-Up Switch; Transmission Safety Starting Switch; Engine Clutch Hydraulic Release; Cruise Control.
Fits the following GMC Models:
- C1500 | 1991-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1991-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1991-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1992-1995 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- K1500 | 1991-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra SLX, Sierra Special, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- K1500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- K2500 | 1991-1996 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- K2500 Suburban | 1992-1996 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Back-Up Switch
Part Number: 89048415
$84.63 MSRP: $165.67
You Save: $81.04 (49%)
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Product Specifications
- Other Name: Switch, Parking/Neutral Position & Back Up Lamp; Back Up Light Switch; Switch, Transmission Safety Starting; Back Up Lamp
Fits the following GMC Models:
- Canyon | 2004-2012 | SL, SLE, SLT, WT, Z71 Fleet, Z71 SL, Z71 SLE, Z85 SL, Z85 SLE | 4 Cyl 2.8 L GAS, 4 Cyl 2.9 L GAS, 5 Cyl 3.5 L GAS, 5 Cyl 3.7 L GAS, 8 Cyl 5.3 L GAS
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GMC Clutch Switch
Part Number: 15027967
$53.78 MSRP: $97.33
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Product Specifications
- Other Name: Switch, Cruise Control Selector; Switch, Transmission Safety Starting or Speed Sensing; Hydraulic Clutch Main Cylinder.
Fits the following GMC Models:
- Jimmy | 2000-2001 | Diamond Edition, Envoy, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- Sierra 1500 | 1999-2006 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 Classic | 2007 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005-2006, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 1999-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
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GMC Neutral Safety Switch
Part Number: 29542692
$138.03 MSRP: $225.20
You Save: $87.17 (39%)
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Product Specifications
- Other Name: Detent, Transmission Throttle Valve; Automatic Transmission Position Switch; Switch, Transmission Mounted Gearshift (External)
Fits the following GMC Models:
- Sierra 1500 | 2006-2010 | Denali, Hybrid, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Sierra 1500 Classic | 2007 | Denali, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2006 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 1500 HD Classic | 2007 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2006-2010 | SL, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2006 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 HD | 2007-2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Yukon | 2006 | Denali, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
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GMC Range Sensor
Part Number: 24042167
$86.15 MSRP: $146.67
You Save: $60.52 (42%)
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Product Specifications
- Other Name: Switch Assembly-Automatic Transmission Manual Shift Shaft Position (Ims-Analog); Switch, Throttle Control (Electric); Switch, Transmission Control Cable; Switch, Transmission Control
- Replaces: 24286139, 24282899, 24258180
Fits the following GMC Models:
- Canyon | 2017-2020 | All Terrain, Base, Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS
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GMC Switch
Part Number: 23190137
$24.94 MSRP: $41.07
You Save: $16.13 (40%)
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Product Specifications
- Other Name: Switch, Transmission Safety Start/Warning; Switch, Transmission Safety Starting Switch Or Speed Sensing; Switch, Transmission Shift Brake Interlock
- Replaces: 26054721
Fits the following GMC Models:
- Sierra 1500 | 1999-2006 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 Classic | 2007 | Hybrid | 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV)
- Sierra 1500 HD | 2005, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 1999-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2005 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001-2005 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Yukon | 2000-2006 | Denali, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 1500 | 2000-2006 | Denali, SL, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2000-2006 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Neutral Safety Switch
Part Number: 19151835
$38.97 MSRP: $70.55
You Save: $31.58 (45%)
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Product Specifications
- Other Name: Switch, Back Up Lamp; Switch, Transmission Safety Starting or Speed Sensing; Safety Start/Warning Switch.
Fits the following GMC Models:
- Sierra 1500 | 2009-2010 | Denali, SL, SLE, SLT, WT, XFE | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L FLEX, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS, 8 Cyl 6.2 L FLEX
- Sierra 2500 HD | 2009-2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
- Sierra 3500 HD | 2009-2010 | SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL
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GMC Clutch Switch
Part Number: 15101582
$27.38 MSRP: $51.42
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Product Specifications
- Other Name: Switch, Cruise Control Selector; Switch, Transmission Safety Starting Switch Or Speed Sensing; Switch, Transmission Safety Start/Warning
Fits the following GMC Models:
- Canyon | 2004-2007 | SL, SLE, SLT, WT, Z71 Fleet, Z71 SL, Z71 SLE, Z85 SL, Z85 SLE | 4 Cyl 2.8 L GAS, 4 Cyl 2.9 L GAS, 5 Cyl 3.5 L GAS, 5 Cyl 3.7 L GAS
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GMC Back-Up Switch
Part Number: 19152824
Product Specifications
- Other Name: Switch, Back Up Lamp; Back Up Light Switch; Switch, Safety Starting Switch Or Speed Sensing
- Replaces: 88996556
Fits the following GMC Models:
- Sierra 2500 | 2003-2004 | Base, SLE, SLT, WT | 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2003-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 2500 HD Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2003-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 Classic | 2007 | SL, SLE, SLT, WT | 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Yukon XL 2500 | 2003-2006 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC Back-Up Switch
Part Number: 12479776
Product Specifications
- Other Name: Switch Assembly, Back Up Lamp; Back Up Light Switch; Switch, Back Up Lamp
Fits the following GMC Models:
- Sierra 1500 | 2001-2006 | Base, C3, Denali, HT, Hybrid, SL, SLE, SLT, WT | 6 Cyl 4.3 L GAS, 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Sierra 1500 HD | 2005-2006, 2001-2003 | SLE, SLT | 8 Cyl 6.0 L GAS
- Sierra 2500 | 2001-2004 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS
- Sierra 2500 HD | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Sierra 3500 | 2001-2006 | Base, SL, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS
- Yukon | 2001-2006 | Denali, SL, SLE, SLT | 8 Cyl 4.8 L GAS, 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 1500 | 2001-2006 | Denali, SL, SLE, SLT | 8 Cyl 5.3 L FLEX, 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Yukon XL 2500 | 2001-2006 | SLE, SLT | 8 Cyl 6.0 L GAS, 8 Cyl 8.1 L GAS
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GMC 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 GMC Models:
- C1500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX, Sierra Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- C1500 Suburban | 1992-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL
- C2500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C2500 Suburban | 1992-1995 | Base, SLE, SLT | 8 Cyl 5.7 L GAS, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLT, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- G1500 | 1992-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS
- G2500 | 1992-1995 | Rally, Rally STX, Vandura | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
- G3500 | 1992-1996 | Magnavan, Rally, Rally Camper Special, Rally STX, Vandura, Vandura Special | 6 Cyl 4.3 L GAS, 8 Cyl 5.7 L CNG, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1992-1996 | Base, SL, SLE, SLS, SLT | 6 Cyl 4.3 L GAS
- K1500 | 1988-1995 | Sierra, Sierra SL, Sierra SLE, Sierra SLS, Sierra SLT, Sierra SLX, Sierra Special, Sierra Sport | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 6.5 L DIESEL
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GMC Neutral Safety Switch
Part Number: 15569768
Product Specifications
- Other Name: Switch, Transmission Safety Start/Warning
Fits the following GMC Models:
- S15 | 1984-1988 | Base, EL, Gypsy, High Sierra, Sierra Classic | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 4.3 L GAS
- S15 Jimmy | 1984-1988 | Base, Gypsy, High Sierra, Sierra Classic, Timberline | 4 Cyl 1.9 L GAS, 4 Cyl 2.0 L GAS, 4 Cyl 2.5 L GAS, 6 Cyl 2.8 L GAS, 6 Cyl 4.3 L GAS
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GMC Parking Brake Warning Switch
Part Number: 477361
Product Specifications
- Other Name: Switch Assembly-Parking Brake Indicator; Switch, Parking Brake Indicator
Fits the following GMC Models:
- C1500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- C2500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- C3500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- Jimmy | 1991 | Base | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K1500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- K2500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- K3500 | 1991 | Sierra, Sierra SLE, Sierra SLX | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- R1500 Suburban | 1991 | Base | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL
- R2500 Suburban | 1991 | Base | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
- R3500 | 1991 | Base, SLE | 8 Cyl 5.7 L GAS, 8 Cyl 6.2 L DIESEL, 8 Cyl 7.4 L GAS
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GMC Back-Up Switch
Part Number: 24261926
$24.90 MSRP: $44.47
You Save: $19.57 (45%)
Product Specifications
- Other Name: Switch; Back Up Light Switch; Switch, Safety Starting Switch Or Speed Sensing
Fits the following GMC Models:
- Canyon | 2015-2019 | All Terrain, Base, Denali, SL, SLE, SLT | 4 Cyl 2.5 L GAS, 4 Cyl 2.8 L DIESEL, 6 Cyl 3.6 L GAS

GMC Neutral Safety Switch Parts Questions & Experts Answers

Neutral Safety Switch
24229422
Q: How to replace the Neutral Safety Switch on GMC Envoy?
A: To change the park/neutral position switch, first put on a parking brake and shift the transmission in the neutral setting. Lower the vehicle and take off the nut fastening the transmission control lever to manual shaft, then unfasten the transmission control lever. Disengage the electrical connectors from the switch and unscrew the bolts that hold the park/neutral position switch to the transmission, then pull the switch from the manual shaft. If the switch will not slide off readily, file the outer edge of the manual shaft to clear any burrs. For installation, align the switch hub flats with the manual shaft flats and slide, the switch until the mounting bracket made contact with the mounting bosses of the transmission. In case a new switch is being installed it is possible that it may come with a positive assurance bracket thus eliminating the need of a necessity of neutral position adjustment tool. Mount the switch on the transmission using two bolts finger tight and install the j 41364-aa position adjustment tool (J 41364-AA) on the switch so seats on the slots. Rotate the tool until the upper locator pin will line up with the slot with the switch then tighten the bolts to 25 nm(18ftlbs). Remove the j 41364-a from the switch and where applicable, remove the positive assurance bracket. Reconnect the electrical connectors to the switch, install the transmission control lever to the manual shaft with the nut, and tighten the control lever nut to 25 nm (18 ft. Lbs.). Finally, lower the vehicle and try the switch to determine whether it is working well, the engine should only start when the indicator's position is p (Park) or n (Neutral). If it does not work properly, change the switch.
Back-Up Switch
89048415
Q: How to replace the Neutral Safety Switch on GMC Canyon?
A: In order to remove the park/neutral back up switch, you should first set the park brake and move the transmission into neutral. Lift and support the vehicle, loosening the nut that holds the transmission control lever to the manual shaft and the lever as well. Detaching the park/neutral back up switch away from the transmission using its bolts, then disconnect the electrical connector from it. If the switch doesn't slide off the manual shaft, file off burrs at the outer edge of the manual shift shaft. Mount the new neutral park back up switch onto the manual shaft by aligning the switch hub flats to the flat on the transmitting shaft and slid onto the shaft until the mounting bracket contacts to the transmission bosses. If the switch that is being installed is new, it will include a positive assurance bracket, and thus there will be no need for a j 41364 -a park neutral switch aligner. Loosely install the two bolts for the switch and then mount it onto the switch by ensuring the alignment of the slots with tabs on the tool). Rotate the switch until the upper locator pin aligns with the slot on the switch, then tighten the switch bolts to 27 Nm (20 ft-lbs). Also, remove the j 41364-a (and positive assurance bracket where applicable). Reconnect the electrical connector to the switch and install the transmission control lever with nut tighten to 20 nm (15 ft. Lbs.). Reduce the vehicle, set the automatic transmission range selector cable and examine the switch for its ability to work, as the engine is only started when the switch is in the p (Park) or n (Neutral) positions; if the switch does not work well, replace it.
Neutral Safety Switch
24221125
Q: How to service and repair the Neutral Safety Switch on an Allison Automatic Transmission on GMC Sierra 1500?
A: The first step for transmission position switch/sensor and allison automatic transmission repair requires control valve assembly removal from the transmission housing. A t27 torx(R) bit should be used for detent lever/ims retaining bolt removal yet this bolt needs replacement because of its thread-applied patch lock material. The transmission case surface that surrounds the spherical pin requires special care to remain free of marks because an unmarred surface forms the essential seal between the control valve assembly and transmission case. You need to avoid twisting the spherical pin because doing so can result in transmission case harm. Caretakers should apply a protective plate against the spherical pin before extracting it from the transmission casing. Pass the manual shift shaft through the detent lever/ims assembly and the manual shift shaft seal before rotating the detent lever/ims assembly to disengage the park pawl apply assembly for removal of the assembly. To install put the new detent lever/ims assembly into the transmission case and align it with the park pawl apply assembly then insert the manual shift shaft through the manual shift shaft seal and the detent lever/ims assembly . Slip the manual shift shaft into its set position inside the transmission case before adding a spherical pin to maintain the manual shift shaft in position. Insert the detent lever/ims retaining bolt using a t27 torx(R) bit and secure it at 10 n.m (92 lb in). The completion of fastlearn under a scan tool helps update tcm adaptive values for new components which prevents slow adaptive mode and ensures proper adaptive value convergence.