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Service bulletin PIP-4629

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 id10030207
Published by NHTSA2009-08-19
Manufacturer's numberPIP-4629
Manufacturer's date2009-04-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER

NHTSA's summary

CHEVROLET/GMC: DIESEL ENGINE TURBO DTC P2563 OR P003A. MAY ENCOUNTER A CONCERN OF SES LIGHT, REDUCED POWER, LOW POWER. *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

Engine, Turbocharger or supercharger

Trouble codes named

P003A, P2563

Vehicles listed
CHEVROLET EXPRESS2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET KODIAK2004 to 2009
CHEVROLET SILVERADO2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET SILVERADO CLASSIC2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2004, 2005, 2006, 2007, 2008, 2009
GMC SIERRA2004, 2005, 2006, 2007, 2008, 2009
GMC SIERRA CLASSIC2004, 2005, 2006, 2007 (the catalog's model; the bulletin names a series or trim of it)
GMC TOPKICK2004 to 2009

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
PI0653A2021-04-26. Service bulletin. Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center A Service Agent (Dealer) during vehicle service may need to replace an engine turbocharger (TC). Any turbocharger that is returned to the Warranty Parts Center (WPC) will be inspected by engineering for root cause failure. The Warranty Part Center (WPC) has received turbochargers returned by Service Agents that have been disassembled, damaged during removal from the engine, electrical harnesses or connectors that have been cut or removed from the turbocharger and/or improperly packaged turbochargers resulting in shipping damage.
PI0653E2018-06-04. Service bulletin. This preliminary informational bulletin provides information on Damaged, Disassembled or Improperly Packaged Turbochargers Returned to Warranty Part Center.
PI0653B2018-05-29. Service bulletin. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers.
PI0653C2017-12-22. Service bulletin. This preliminary informational bulletin provides dealership personnel with policies and procedures regarding damaged, disassembled or improperly packaged turbochargers returned to Warranty Part Center.
PI0653D2017-10-15. Service bulletin. This preliminary informational bulletin was created to inform Service Agents or Dealers, they may be charged back for parts and labor due to the turbo-chargers are being returned to the Warranty Parts center damaged, improperly assembled or missing parts and advising to properly package the complete turbochargers. (New models and RPOs added)
03-06-04-017K2017-08-31. Service bulletin. This Informational Bulletin provides information on availability of Diesel Fuel additives.
PIP4568Q2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician that some vehicles may have a Service Engine Soon lamp, engine misfire on cylinder 1, 4, 6, or 7 and/or tick noise. Technician will follow service information diagnosis first. If service information diagnosis does not isolate the cause of this concern perform a cylinder deactivation active fuel management system compression test in service information. If the running compression of the misfiring cylinder stays below 25 Pounds per Square Inch regardless of the active fuel management solenoid being commanded on or off, an active fuel management lifter is mechanically collapsed/stuck or unlocking as soon as the engine is started. Replace all active fuel management lifters, and all plastic lifter guides. Also perform the cylinder deactivation active fuel management Valve Lifter Oil Manifold Diagnosis and Testing in Service Information. If it isolates a concern with the Valve Lifter Oil Manifold, replace it and reevaluate the concern. The active fuel management lifters can also be monitored for proper operation by carefully inspecting the cylinder 1, 4, 6, and 7 rockers and valves while cranking or briefly and safely running the engine with the valve covers removed. If the valve or valves of an active fuel management cylinder stop moving while doing this test, the active fuel management lifter is causing the concern. For 2008-2009 Full Size Truck/SUV or a 2007-2009 Chevrolet Tahoe with the Police Package reprogram the Engine Control Module. On the 2008-2009 Pontiac G8, 2010-2011 Camaro, and 2007-2010 Full Size Trucks with active fuel management, also determine if the active fuel management pressure relief valve shield that is listed in the latest version of 10-06-01-008 has ever been installed. On passenger cars with the LS4 engine, determine if the updated oil pan gasket that is listed in the latest version of 11-06-01-007 has been installed.
145812017-01-31. Service bulletin. 14581 - EMISSION RECALL. GENERAL MOTORS HAS DECIDED TO CONDUCT A VOLUNTARY EMISSION RECALL INVOLVING CERTAIN 2008 CHEVROLET AVALANCHE, SILVERADO, SUBURBAN, AND TAHOE; AND GMC SIERRA, YUKON, AND YUKON XL VEHICLES EQUIPPED WITH CALIFORNIA BIN 4 EMISSIONS RPO NU5. THE DESIGN OF THE FUEL CONTROL SYSTEM DID NOT ADEQUATELY CONTROL CARBON MONOXIDE EMISSIONS UNDER CERTAIN OPERATING CONDITIONS. DEALERS ARE TO REPROGRAM THE ENGINE CONTROL MODULE WITH A MODIFIED FUEL CONTROL CALIBRATION.
PIP-48882011-06-24. Service bulletin. GM: INFORMATION ON INSPECTING AND REPLACING TURBOS. *RM
PIP-48572011-05-25. Service bulletin. GM: THERE MAY BE REDUCED POWER AND AN INTERNAL TROUBLE CODE IN HIGH TEMPERATURES OR WHEN NEAR THE TOWING LIMIT. *RM