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Service bulletin PI-0320

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 id10037895
Published by NHTSA2011-06-07
Manufacturer's numberPI-0320
Manufacturer's date2010-12-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

GM: THERE ARE COMPLAINTS OF CERTAIN GEARS NOT WORKING OR NO REVERSE. THERE IS ALSO A POSSIBILITY OF TWO INTERNAL TROUBLE CODES. *RM

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, Manual transmission

Vehicles listed
CADILLAC ESCALADE2011
CADILLAC ESCALADE ESV2011 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 15002011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET CAMARO2011
CHEVROLET CORVETTE2011
CHEVROLET EXPRESS2011
CHEVROLET SILVERADO2011
CHEVROLET SUBURBAN 15002011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET TAHOE2011
GMC SAVANA2011
GMC SIERRA2011
GMC YUKON2011
GMC YUKON XL 15002011 (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.

Other bulletins for the same vehicles and component
PI0690B2024-04-29. Service bulletin. MIL Illuminated.
PI0690A2024-04-29. Service bulletin. MIL Illuminated.
147302023-12-18. Service bulletin. Torque Converter Clutch Wear
121382023-12-04. Service bulletin. Transmission Dipstick Tube Fracture
17-NA-0662023-07-25. Service bulletin. This service bulletin provides information for automatic transmission Oil Cooler Flush and flow test.
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
990420002L2021-08-09. Service bulletin. This service bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operation.
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.