# Service bulletin PIP\-4395

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: 10026149
- Published by NHTSA: 2008\-10\-02
- Manufacturer's number: PIP\-4395
- Manufacturer's date: 2008\-08\-01
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION

## NHTSA's summary

GMC: FLARE AND OR HARSH 2\-3 SHIFTS. THIS CONDITION MAY BE CAUSED BY LEAKING 1\-2\-3\-4 AND 3\-5\-R CLUTCH FLUID SEAL RINGS \(230\). MODELS CADILLACS, CHEVROLETS, GMC, HUMMERS, PONTIACS. EQUIPPED WITH 6L80 \(RPO MYC\) OR 6L90 \(RPO MYD\) AUTOMATIC TRANSMISSION. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Transmission and driveline, Automatic transmission

## Vehicles listed

- 2007 to 2009 CADILLAC ESCALADE
- 2007 to 2009 CADILLAC ESCALADE ESV
- 2007 to 2009 CADILLAC ESCALADE EXT
- 2009 CHEVROLET AVALANCHE
- 2009 CHEVROLET AVALANCHE 1500
- 2006 to 2009 CHEVROLET CORVETTE
- 2007 to 2009 CHEVROLET SILVERADO
- 2007 to 2009 CHEVROLET SILVERADO 1500
- 2007 to 2009 CHEVROLET SILVERADO 2500
- 2007 to 2009 CHEVROLET SILVERADO 3500
- 2008 to 2009 CHEVROLET SUBURBAN
- 2008 to 2009 CHEVROLET SUBURBAN 1500
- 2008 to 2009 CHEVROLET SUBURBAN 2500
- 2009 CHEVROLET TAHOE
- 2007 to 2009 GMC SIERRA
- 2007 to 2009 GMC SIERRA 1500
- 2007 to 2009 GMC SIERRA 2500
- 2007 to 2009 GMC SIERRA 3500
- 2009 GMC YUKON
- 2007 to 2009 GMC YUKON DENALI
- 2007 to 2009 GMC YUKON DENALI XL
- 2008 to 2009 GMC YUKON XL
- 2008 to 2009 GMC YUKON XL 1500
- 2008 to 2009 GMC YUKON XL 2500
- 2008 to 2009 HUMMER H2
- 2008 HUMMER H2 SUT
- 2008 to 2009 PONTIAC G8

## Other bulletins for the same vehicles and component

- [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
- [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.
- [1308116001F](/bulletins/10183782.md), 2020-12-07, Service bulletin: EQUIPMENT; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. The intent of this technical 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.
- [080730026F](/bulletins/10165123.md), 2019-09-23, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION. This informational bulletin provides information on Some vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak. This condition may be accompanied by a clunk noise. This is a slight movement that is more often seen visually, rather than felt, when viewed from the outside and using the auto\-start feature, if equipped.
- [PIT4585F](/bulletins/10156942.md), 2019-04-08, Service bulletin: EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); ELECTRICAL SYSTEM:12V/24V/48V BATTERY. This Preliminary Information communication provides information to the technician that the Serial Data Gateway Module \(SDGM\) may report "Crash Sense Failed" and the 300v Hybrid Battery Contactors will remain open until the Hybrid Powertrain Control Module's \(HPCM\) High Voltage \(HV\) DTCs are reset. And How to Reset.
- [PIP4681E](/bulletins/10143773.md), 2018-08-20, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. This Preliminary Information communication provides information to the technician about vehicles that have a random bump, chuggle, or fishbite sensation when crowding the throttle slightly with the Torque Converter Clutch on while cruising at 35\-60 miles per hour. Technician should follow all published Service Information diagnostics if the concern is repaired compare to a like vehicle with the same options.
- [PIP3366C](/bulletins/10143757.md), 2018-08-20, Service bulletin: POWER TRAIN:TRANSFER CASE \(4\-WHEEL DRIVE\); POWER TRAIN:AUTOMATIC TRANSMISSION. This Preliminary information communicates to the dealer technician thatLight Duty Trucks equipped with automatic transmissions and 4 wheel drive may exhibit a condition of grinding/ratcheting type noise when shifting the automatic transmission into park while the transfer case is in 4 wheel drive low \(4LO\) range. Dealers technician\&\#39;s are advised this condition should be deemed a normal characteristic of 4WD low operation.
- [09\-07\-30\-018D](/bulletins/10139036.md), 2018-06-04, Service bulletin: POWER TRAIN:AUTOMATIC TRANSMISSION; EQUIPMENT. This informational bulletin provides a revision for 09\-07\-30\-018C to add the 2014 model year and update the Labor Operation.

JSON: [/v1/bulletins/10026149](/v1/bulletins/10026149)

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