# Service bulletin PIP4379K 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: 10112401 - Published by NHTSA: 2017\-08\-15 - Manufacturer's number: PIP4379K - Manufacturer's date: 2013\-10\-09 - NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES ## 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/2013/MC-10112401-9999.pdf) - [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2013/MC-10112401-0001.pdf) The document is the manufacturer's. This site does not hold it. ## Components Transmission and driveline, Automatic transmission ## 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 KODIAK - 2001 to 2013 CHEVROLET SILVERADO - 2014 CHEVROLET SILVERADO 2500 - 2007 CHEVROLET SILVERADO CLASSIC - 2001 to 2013 GMC SIERRA - 2014 GMC SIERRA 2500 - 2007 GMC SIERRA CLASSIC - 2007 to 2013 GMC SIERRA DENALI - 2003 to 2010 GMC TOPKICK ## Recalls for the same vehicles and component - [14V152000](/recalls/nhtsa/14V152000.md), 2014-03-31: POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES - [13V001000](/recalls/nhtsa/13V001000.md), 2013-01-02: POWER TRAIN:AUTOMATIC TRANSMISSION; STEERING:COLUMN LOCKING:ANTI\-THEFT DEVICE ## Other bulletins for the same vehicles and component - [14204](/bulletins/10248739.md), 2024-01-16, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. Inner Tie Rod Torque - [12138](/bulletins/10245831.md), 2023-12-04, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Transmission Dipstick Tube Fracture - [17\-NA\-066](/bulletins/10239647.md), 2023-07-25, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test. - [16\-NA\-130](/bulletins/10232711.md), 2023-03-08, Service bulletin: POWER TRAIN; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT:VALVES/VALVE BODY. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear. - [06\-00\-89\-031D](/bulletins/10201098.md), 2021-09-07, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification - [990420002L](/bulletins/10200154.md), 2021-08-09, Service bulletin: POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation. - [PI1154](/bulletins/10191013.md), 2021-04-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. Delayed 1\-2 Upshift While Driving at or Below 15 Percent Throttle Condition/Concern Some customers may comment that during the first few launches after a key cycle, they experience a delayed 1\-2 upshift. If the vehicle has no diagnostic codes, the delay in the 1\-2 shift may be driver induced. If the vehicle has diagnostic codes, address these diagnostic codes prior to using this bulletin. On a level surface if the vehicle is launched from a stop at light throttle \(less than 15%\), then the throttle is closed before reaching 16 km/h \(10 mph\), then the throttle is opened and held to less than 15%, there could be a 1\-2 upshift delay. This delay will last until the vehicle exceeds 24 km/h \(15 mph\) or the driver drops back to closed throttle. - [PI1150](/bulletins/10190984.md), 2021-04-28, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. Clicking/Rattle Type Noise from Rear of Engine Some customers may comment on a clicking/rattle type noise coming from the engine compartment. This may be caused by the starter shield contacting the transmission case and causing a rattle - [06\-00\-89\-031D](/bulletins/10190503.md), 2021-04-20, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; ENGINE. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification - [150089004C](/bulletins/10188403.md), 2021-03-08, Service bulletin: SUSPENSION:FRONT:MACPHERSON STRUT; SUSPENSION:FRONT:SHOCK ABSORBER; POWER TRAIN:AUTOMATIC TRANSMISSION:FLUID/LUBRICANT. This service bulletin provides technicians with updated information to help identify the differences between what is considered a fluid leak, and what is considered fluid seepage. JSON: [/v1/bulletins/10112401](/v1/bulletins/10112401) [Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20PIP4379K&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10112401&vehicle=Service%20bulletin%20PIP4379K)