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Service bulletin PI-0209

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 id10036304
Published by NHTSA2011-03-14
Manufacturer's numberPI-0209
Manufacturer's date2010-08-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

CADILLAC/CHEVROLET/GMC: ROUGH TRANSITION TO AUTO STOP OR NO AUTO STOP, MALFUNCTION INDICATOR LAMP (MIL) ON, DTC P2797 SET. SOME VEHICLES MAY HAVE EXPERIENCED A CUT OR CHAFFING TO THE AUXILIARY TRANSMISSION PUMP HARNESS, WHICH CAN CAUSE THE AUTO STOP FEATURE TO OPERATE INCORRECTLY. HYBRID VEHICLES ONLY. *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

P2797

Vehicles listed
CADILLAC ESCALADE2010
CHEVROLET SILVERADO2009, 2010
CHEVROLET TAHOE2010
GMC SIERRA2009, 2010
GMC YUKON2010

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
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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.
060089031F2020-12-21. Service bulletin. This service bulletin provides information on OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification.
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.
080730026F2019-09-23. Service bulletin. 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.