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Service bulletin PIT4730B

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 id10125126
Published by NHTSA2017-12-14
Manufacturer's numberPIT4730B
Manufacturer's date2017-11-20
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

This Preliminary Information communication a diagnostic tip if the high speed lan bus is shorted to ground, which can cause the BCM to appear off line.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Electrical system

Vehicles listed
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
CADILLAC CTS2008, 2009, 2010, 2011, 2012, 2013
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC DTS2012
CADILLAC ESCALADE2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
CADILLAC SRX2007, 2008, 2009
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET CORVETTE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET EQUINOX2007, 2008, 2009
CHEVROLET EXPRESS2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
CHEVROLET IMPALA2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET MONTE CARLO2006, 2007
CHEVROLET SILVERADO 15002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SUBURBAN2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
CHEVROLET TAHOE2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
GMC SAVANA2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017
GMC SIERRA 15002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014
HUMMER H22008, 2009
PONTIAC G82008, 2009
PONTIAC TORRENT2008, 2009
SATURN OUTLOOK2007, 2008, 2009, 2010
SATURN VUE2007, 2008, 2009, 2010

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

Recalls for the same vehicles and component
20242942024-05-24. Electrical
20232102023-04-06. Electrical
23V2470002023-04-06. ELECTRICAL SYSTEM:WIRING
20193252019-06-28. Electrical
18V6550002018-09-21. ELECTRICAL SYSTEM
20182342018-05-04. Electrical
20165972016-11-29. Electrical
16V5070002016-07-05. AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION; ELECTRICAL SYSTEM:WIRING
20163402016-06-30. Electrical
15V6400002015-10-09. ELECTRICAL SYSTEM:IGNITION

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
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25-NA-0872025-05-02. Service bulletin. This service bulletin provides information on the proper Reflective High Temperature Heat and/or Insulating Tape to use for certain repairs, such as Wiring Harness Repairs.
21-NA-1392025-05-01. Service bulletin. This service bulletin provides a repair procedure to correct a customer concern of a Malfunction Indicator Lamp (MIL) Illuminated - DTC P3055 Set.
23-NA-0012025-04-28. Service bulletin. This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.
13-08-116-001K2025-04-25. Service bulletin. The intent of this service 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.
24-NA-0982025-04-24. Service bulletin. This service bulletin provides information for dealers/technicians on Service Programming System (SPS) Error Codes E4398, E4399, E4401, E4403, M4404, M4413, M6954, M6955, E4414, E4423, E4491, E4492, or E6961 and resolution information.
15-06-03-001F2025-04-15. Service bulletin. This service bulletin provides information to diagnose batteries that have set for a long period of time and/or cold weather climates and testing those batteries.
21-NA-0432025-02-12. Service bulletin. This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
18-NA-1802025-01-30. Service bulletin. This Warranty Administration service bulletin provides Lithium-Ion battery Exchange Process and Transaction Submission information.