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Service bulletin 08-07-30-015

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10025462
Published by NHTSA2008-08-12
Manufacturer's number08-07-30-015
Manufacturer's date2008-04-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

DIAGNOSTIC INFORMATION ON MN8, MT1 SES/MIL ILLUMINATED, DTC P0757, HARSH SHIFT, DELAYED 2-3 SHIFT, 2-3 SHIFT FLARE, NO THIRD GEAR, SLIPS IN THIRD GEAR OR REVERSE. *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

Trouble codes named

P0757

Vehicles listed
CHEVROLET AVALANCHE 25002002, 2003, 2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS2002, 2003, 2004, 2005, 2006, 2007, 2008
CHEVROLET SILVERADO 15002002, 2003, 2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 15002007 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN 25002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2002, 2003, 2004, 2005, 2006, 2007, 2008
GMC SIERRA2002, 2003, 2004, 2005, 2006, 2007
GMC YUKON XL 25002002, 2003, 2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
08V3130002008-07-11. POWER TRAIN:AUTOMATIC TRANSMISSION
04V3200002004-07-06. POWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:COLUMN SHIFT

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
16-NA-1302023-03-08. Service bulletin. This service bulletin provides information for after installation of a replacement upper valve body, the transmission may have no Reverse and no 2nd gear.
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
150089004C2021-03-08. Service bulletin. 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.
1308116001F2020-12-07. Service bulletin. 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.
PIP3366C2018-08-20. Service bulletin. 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's are advised this condition should be deemed a normal characteristic of 4WD low operation.
09-07-30-018D2018-06-04. Service bulletin. This informational bulletin provides a revision for 09-07-30-018C to add the 2014 model year and update the Labor Operation.
01-00-89-010J2018-05-21. Service bulletin. This informational bulletin provides a revision for 01-00-89-010I to add the 2013 model year.
02-07-30-029W2018-05-21. Service bulletin. This informational bulletin provides information to the technician on what parts of an engine or transmission will require the PQC to be notified.
PI0938A2018-05-21. Service bulletin. This preliminary bulletin provides information on what labor operation number to use for various electrical/electronic control issues.