# Service bulletin PIP4379L

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10125942
- Published by NHTSA: 2017\-12\-22
- Manufacturer's number: PIP4379L
- Manufacturer's date: 2014\-06\-10
- NHTSA component: POWER TRAIN; ELECTRICAL SYSTEM

## NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have not engagement into drive, delayed, no engagement into reverse, and or a range inhibit. Technician may find Diagnostic Trouble Codes P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894 or P2723. Technician should follow published Service Information diagnostics for Diagnostic Trouble Code P0701 first. Technician will also ensure the fluid level is at the top of the hot band when the transmission fluid temperature is 175° Fahrenheit. Diagnostic Trouble Codes P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894 or P2723 can set by the following fluid service/filter change, transmission service involving removing the pan, low fluid level caused by leaks, or after long periods of storage. If the fluid level has been properly checked using the HOT check procedure listed in Service Information document 2408059 and any of the Diagnostic Trouble Codes reset during a cold start inspect the internal suction filter for possible cracks. If no other concerns are found inspect for a stuck lube regulator valve in the pump cover due to debris.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2014/MC-10125942-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2014/MC-10125942-0001.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system, Transmission and driveline

## Trouble codes named

P0701, P0731, P0732, P0733, P0734, P0736, P0751, P0756, P0761, P0776, P0843, P0848, P0873, P0877, P0894, P2723

## Vehicles listed

- 2003 to 2009 CHEVROLET C SERIES
- 2003 CHEVROLET CONVENTIONAL
- 2006 to 2011 CHEVROLET SILVERADO 1500
- 2014 CHEVROLET SILVERADO 1500
- 2002 to 2005 CHEVROLET SILVERADO 1500 HD
- 2001 to 2015 CHEVROLET SILVERADO 2500
- 2001 CHEVROLET SILVERADO 3500
- 2013 CHEVROLET SILVERADO 3500
- 2005 CHEVROLET T SERIES
- 2010 CHEVROLET T SERIES
- 2004 to 2006 GMC C SERIES
- 2003 GMC G SERIES
- 2001 to 2002 GMC GM
- 2014 GMC SIERRA 1500
- 2007 to 2015 GMC SIERRA 2500
- 2003 GMC SIERRA DENALI
- 2007 to 2013 GMC SIERRA DENALI
- 2015 GMC SIERRA DENALI
- 2003 to 2010 GMC TOPKICK

## Recalls for the same vehicles and component

- [2024294](/recalls/tc/2024294.md), 2024-05-24: Electrical
- [2019325](/recalls/tc/2019325.md), 2019-06-28: Electrical
- [15V640000](/recalls/nhtsa/15V640000.md), 2015-10-09: ELECTRICAL SYSTEM:IGNITION
- [2015458](/recalls/tc/2015458.md), 2015-10-08: Electrical
- [2015002](/recalls/tc/2015002.md), 2014-12-30: Electrical
- [14V827000](/recalls/nhtsa/14V827000.md), 2014-12-30: ELECTRICAL SYSTEM:IGNITION
- [14V819000](/recalls/nhtsa/14V819000.md), 2014-12-24: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT
- [2014589](/recalls/tc/2014589.md), 2014-12-22: Powertrain
- [2014432](/recalls/tc/2014432.md), 2014-10-03: Electrical
- [14V614000](/recalls/nhtsa/14V614000.md), 2014-10-01: ELECTRICAL SYSTEM

## Other bulletins for the same vehicles and component

- [PI0281L](/bulletins/11019516.md), 2025-06-12, Service bulletin: STEERING; POWER TRAIN; SUSPENSION. This preliminary informational \(PI\) bulletin provides information to dealership personnel that may be helpful when addressing underbody component corrosion with customers.
- [25\-NA\-087](/bulletins/11017595.md), 2025-05-02, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
- [23\-NA\-001](/bulletins/11017252.md), 2025-04-28, Service bulletin: UNKNOWN OR OTHER; ELECTRICAL SYSTEM. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
- [13\-08\-116\-001K](/bulletins/11017244.md), 2025-04-25, Service bulletin: ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them.
- [24\-NA\-098](/bulletins/11017207.md), 2025-04-24, Service bulletin: ELECTRICAL SYSTEM; UNKNOWN OR OTHER. This service bulletin provides information for dealers/technicians on Service Programming System \(SPS\) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
- [15\-06\-03\-001F](/bulletins/11017031.md), 2025-04-15, Service bulletin: ELECTRICAL SYSTEM. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
- [PIP5966A](/bulletins/11014622.md), 2025-03-02, Service bulletin: POWER TRAIN. This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- [PIP5966A](/bulletins/11014621.md), 2025-03-02, Service bulletin: POWER TRAIN. This Preliminary information communicates Diagnostic aids for a no start or DTC'S following a transmission replacement
- [16\-NA\-019](/bulletins/11014353.md), 2025-02-19, Service bulletin: POWER TRAIN. This service bulletin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares.
- [21\-NA\-043](/bulletins/11014230.md), 2025-02-12, Service bulletin: VISIBILITY/WIPER; SERVICE BRAKES; ENGINE; ELECTRICAL SYSTEM; WHEELS. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold \(prepping\) to the customer.

JSON: [/v1/bulletins/10125942](/v1/bulletins/10125942)

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