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Service bulletin PIT4943D

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 id10114954
Published by NHTSA2017-08-15
Manufacturer's numberPIT4943D
Manufacturer's date2015-12-09
NHTSA componentFUEL SYSTEM, GASOLINE; FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.

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

Engine, Exhaust and emissions, Fuel system, Fuel tank

Trouble codes named

P0442

Vehicles listed
BUICK CASCADA2016
BUICK CENTURY2000, 2001, 2002, 2003, 2004, 2005
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
BUICK ENCORE2013, 2014, 2015, 2016
BUICK ENVISION2016
BUICK LACROSSE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
BUICK LESABRE2000, 2001, 2002, 2003, 2004, 2005
BUICK LESABRE2006
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
BUICK LUCERNE2012
BUICK PARK AVENUE2000, 2001, 2002, 2003, 2004, 2005
BUICK RAINIER2004, 2005, 2006, 2007
BUICK REGAL2000, 2001, 2002, 2003, 2004
BUICK REGAL2005
BUICK REGAL2011, 2012, 2013, 2014, 2015, 2016
BUICK RENDEZVOUS2002, 2003, 2004, 2005, 2006, 2007
BUICK RIVIERA2000
BUICK TERRAZA2005, 2006, 2007
BUICK TERRAZA2008
BUICK VERANO2012, 2013, 2014, 2015, 2016
CADILLAC ATS2013, 2014, 2015, 2016
CADILLAC CATERA2000, 2001
CADILLAC CT62016
CADILLAC CTS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC DEVILLE2000, 2001, 2002, 2003, 2004, 2005
CADILLAC DTS2006, 2007, 2008, 2009, 2010, 2011
CADILLAC ELDORADO2000, 2001, 2002
CADILLAC ELR2014, 2015, 2016
CADILLAC ESCALADE2000
CADILLAC ESCALADE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE EXT 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC SEVILLE2000, 2001, 2002, 2003, 2004
CADILLAC SRX2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CADILLAC STS2005, 2006, 2007, 2008, 2009, 2010, 2011
CADILLAC XLR2004, 2005, 2006, 2007, 2008, 2009
CADILLAC XTS2013, 2014, 2015, 2016
CHEVROLET ALERO EXPORT2000 to 2002
CHEVROLET ASTRO2000 to 2005
CHEVROLET AVALANCHE2007, 2008, 2009, 2010, 2011, 2012, 2013
CHEVROLET AVALANCHE 15002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVALANCHE 25002002, 2003, 2004, 2005, 2006 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET AVEO2004, 2005, 2006
CHEVROLET AVEO2009, 2010, 2011
CHEVROLET AVEO2013
CHEVROLET B72001
CHEVROLET B7 MEDIUM DUTY2000
CHEVROLET BLAZER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET C SERIES2007 to 2009
CHEVROLET CAMARO2000, 2001, 2002
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET CAPRICE2011 to 2016
CHEVROLET CAPTIVA2008
CHEVROLET CAPTIVA2011 to 2015
CHEVROLET CAPTIVA SPORT2009
CHEVROLET CAVALIER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET CHEVEROLET SS2014 to 2016
CHEVROLET CHEVY VAN2000
CHEVROLET CITY EXPRESS2015, 2016
CHEVROLET CLASSIC2004 to 2005
CHEVROLET COBALT2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO2015, 2016
CHEVROLET CONVENTIONAL2001
CHEVROLET CONVENTIONAL2003
CHEVROLET CORVETTE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET CRUZE2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET EPICA2005
CHEVROLET EQUINOX2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET EXPRESS2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET EXPRESS 45002016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET F SERIES2004 to 2006
CHEVROLET G SERIES2000
CHEVROLET G SERIES2003
CHEVROLET G VAN BUS2001 to 2002
CHEVROLET G VAN BUS2004 to 2006
CHEVROLET H SERIES2001
CHEVROLET HHR2006, 2007, 2008, 2009, 2010, 2011
CHEVROLET IMPALA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET L SERIES2001 to 2002
CHEVROLET LOW CAB FORWARD 35002016
CHEVROLET LUMINA2000, 2001
CHEVROLET LUMINA2002
CHEVROLET M SERIES2000 to 2002
CHEVROLET M VAN2001
CHEVROLET MALIBU2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET METRO2000, 2001
CHEVROLET MONTE CARLO2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
CHEVROLET OPTRA2004, 2005, 2006, 2007
CHEVROLET OPTRA2016
CHEVROLET ORLANDO2012, 2013, 2014
CHEVROLET P SERIES2000 to 2001
CHEVROLET PRIZM2000 to 2002
CHEVROLET S102000 to 2004
CHEVROLET SILVERADO 15002006, 2007, 2008, 2009, 2010, 2011 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 1500 HD2002, 2003, 2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002000, 2001 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC2012, 2013, 2014, 2015, 2016
CHEVROLET SPARK2013, 2014, 2015, 2016
CHEVROLET SPARK EV2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET T SERIES2007, 2008, 2009
CHEVROLET TAHOE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET TRACKER2000, 2001, 2002, 2003, 2004
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET TRANS SPORT2000 to 2001
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET TRAX2013, 2014, 2015, 2016
CHEVROLET UPLANDER2005, 2006, 2007, 2008, 2009
CHEVROLET V SERIES2000
CHEVROLET VENTURE2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET VOLT2011, 2012, 2013, 2014, 2015, 2016
CHEVROLET W SERIES2000
CHEVROLET W SERIES C3 35002006
CHEVROLET W-SERIES2001 to 2010
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
GMC C SERIES2007 to 2009
GMC CANYON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
GMC CANYON2015, 2016
GMC ENVOY2000 to 2001
GMC ENVOY2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC ENVOY XL2006 (the catalog's model; the bulletin names a series or trim of it)
GMC ENVOY XUV2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC F SERIES2004 to 2006
GMC G SERIES2000
GMC G SERIES2003
GMC G VAN BUS2000
GMC G VAN BUS2004 to 2006
GMC G VAN BUS2010
GMC GM2001 to 2002
GMC JIMMY2000 to 2004
GMC JIMMY CLASSIC2005
GMC M/L VAN2000 to 2001
GMC SAFARI2000, 2001, 2002, 2003, 2004, 2005
GMC SAFARI (GMC)2000 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
GMC SIERRA 15002014 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 1500 HD2004, 2005 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA DENALI2015, 2016 (the catalog's model; the bulletin names a series or trim of it)
GMC SONOMA2000, 2001, 2002, 2003, 2004
GMC SUBURBAN2000
GMC SUBURBAN2001
GMC TERRAIN2010, 2011, 2012, 2013, 2014, 2015, 2016
GMC TOPKICK2003 to 2010
GMC W-SERIES2004 to 2010
GMC YUKON2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016
GMC YUKON DENALI2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON DENALI XL2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
GMC YUKON XL2012, 2013, 2014 (the catalog's model; the bulletin names a series or trim of it)
GMC YUKON XL2015, 2016
HUMMER H22003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
HUMMER H32006, 2007, 2008, 2009, 2010
ISUZU 4500 SERIES2006
OLDSMOBILE ALERO2000, 2001, 2002, 2003, 2004
OLDSMOBILE AURORA2000
OLDSMOBILE AURORA2001, 2002, 2003
OLDSMOBILE BRAVADA2000, 2001, 2002, 2003, 2004
OLDSMOBILE INTRIGUE2000, 2001, 2002
OLDSMOBILE SILHOUETTE2000, 2001, 2002, 2003, 2004
PONTIAC AZTEK2001, 2002, 2003, 2004, 2005
PONTIAC BONNEVILLE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC FIREBIRD2000, 2001, 2002
PONTIAC G32008, 2009, 2010
PONTIAC G32011
PONTIAC G52007, 2008, 2009, 2010
PONTIAC G62005, 2006, 2007, 2008, 2009, 2010
PONTIAC G82008, 2009, 2010
PONTIAC GRAND AM2000, 2001, 2002, 2003, 2004, 2005
PONTIAC GRAND PRIX2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
PONTIAC GTO2004, 2005, 2006
PONTIAC MONTANA2000, 2001, 2002, 2003, 2004
PONTIAC MONTANA2005 to 2009
PONTIAC PURSUIT2005, 2006
PONTIAC PURSUIT2007 to 2009
PONTIAC SOLSTICE2006, 2007, 2008, 2009, 2010
PONTIAC SUNFIRE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC TORRENT2006, 2007, 2008, 2009
PONTIAC TRANS SPORT2000 to 2001
PONTIAC VIBE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
PONTIAC WAVE2005
SAAB 9-32009
SAAB 9-52009, 2010
SAAB 9-7X2005, 2006, 2007, 2008, 2009
SATURN ASTRA2008, 2009
SATURN AURA2007, 2008, 2009, 2010
SATURN ION2003, 2004, 2005, 2006, 2007
SATURN L2002003
SATURN L3002003, 2004, 2005
SATURN LW2002000, 2001, 2002 (the catalog's model; the bulletin names a series or trim of it)
SATURN OUTLOOK2007, 2008, 2009, 2010
SATURN RELAY2005, 2006, 2007
SATURN RELAY2008

And 3 more lines, in the JSON.

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

Recalls for the same vehicles and component
03V2380002003-07-01. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
03V0190002003-01-27. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
00V1600002000-06-16. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP
99V3020001999-10-29. FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP

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
14743B2023-12-18. Service bulletin. Loss of Electric Power Steering (EPS) Assist
18207 022022-05-31. Service bulletin. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced. ** Revised Parts Information **
182072022-05-31. Service bulletin. Customer Satisfaction. Certain vehicles may have a condition in which the power steering gear motor could separate from the steering gear housing due to corrosion of the attaching bolts. If the motor separates, power steering assist may be reduced or lost, and the driver may experience an unexpected increase in steering effort, especially at low speeds. Replace the bolts that attach the electric power steering motor to the steering gear and add a protective wax coating to each bolt and the seam around the electric power steering motor. If the bolts cannot be removed due to corrosion, the steering gear must be replaced.
PIP5427B2019-04-08. Service bulletin. This Preliminary Information communication provides information to the technician about vehicle that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P2635, U0074 and or U18A2. Technician will need to follow published diagnostics for Diagnostic Trouble Codes U0074 would take priority over U18A2 if both set before addressing DTC P2635.
PI13242018-06-25. Service bulletin. This preliminary bulletin provides a procedure to update the BCM to correct the customers concern of the fuel door wont unlock when activated.
PI0865D2018-06-11. Service bulletin. This preliminary information bulletin provides a information and a procedure on the 2.4L ecotec engine.
PIP5427A2018-05-21. Service bulletin. This Preliminary Information communication provides information to the technician about vehicle that may have a Service Engine Soon Malfunction Indicator Lamp on. Technician may find Diagnostic Trouble Codes P2635, U0074 and or U18A2. Technician will need to follow published diagnostics for Diagnostic Trouble Codes U0074 would take priority over U18A2 if both set before addressing DTC P2635.
146892018-04-23. Service bulletin. 14689 - Emission Recall. These vehicles may have been built with an out-of-position ?anti-siphon? grid within the fuel fill pipe. As a result, the grid may move over time and become located from slightly deeper in the fuel fill pipe to totally dislodged from the pipe and move to the bottom of the fuel tank. Dealers are to replace the fuel tank fill pipe, and if necessary, inspect the fuel tank for the dislodged anti-siphon grid.
PIT5481C2018-02-21. Service bulletin. This Preliminary Information communication provides information to the technician with additional information on the functionality of Lane Keep Assist.Starting with2016 model year Lane Keep Assist Regular Production Option Code (UHX) replaced Lane Departure Warning Regular Production Option Code (UFL). Lane Keep Assist is designed to assist the driver in keeping the vehicle from drifting out of a driving lane that has clearly identified markings. The electric power steering provides a gentle steering correction if a lane marking has been crossed and the driver has not actively responded.
PIC5295B2017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that may have sloshing noise while stopping. Technician will need to add or remove 3 gallons of fuel in the fuel tank and retest. If the noise is gone after changing the fuel level then there is nothing you can do to change this condition. The noise is considered normal for that level of fuel in the tank. If the noise is present with all fuel levels, inspect for a blocked drain hole in the mufflers. Technician will need to clean out the drain hole to correct the concern.