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Service bulletin PIT5099H

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 id11007744
Published by NHTSA2024-09-12
Manufacturer's numberPIT5099H
Manufacturer's date2024-09-12
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

This Preliminary Information communication provides information to the technician about vehicles that the Heater-Vent-Air Conditioning blows warm air. Before calling General Motors Technical Assistance Center technician will need to have high and low pressures, outside temperature, humidity, and vent temperature.

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.

Vehicles listed
BUICK ALLURE2006
BUICK CASCADA2016, 2017, 2018, 2019
BUICK CENTURY2000, 2001, 2002, 2003, 2004, 2005
BUICK ENCLAVE2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK ENCORE2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK ENVISION2016, 2017, 2018, 2019, 2020, 2021, 2022
BUICK LACROSSE2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
BUICK LESABRE2000, 2001, 2002, 2003, 2004, 2005
BUICK LUCERNE2006, 2007, 2008, 2009, 2010, 2011
BUICK PARK AVENUE2000, 2001, 2002, 2003, 2004, 2005
BUICK RAINIER2004, 2005, 2006, 2007
BUICK REGAL2000, 2001, 2002, 2003, 2004
BUICK REGAL2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
BUICK RENDEZVOUS2002, 2003, 2004, 2005, 2006, 2007
BUICK TERRAZA2005, 2006, 2007
BUICK VERANO2012, 2013, 2014, 2015, 2016, 2017
CADILLAC ATS2013, 2014, 2015, 2016, 2017, 2018, 2019
CADILLAC CT42020, 2021, 2022
CADILLAC CT52020, 2021, 2022
CADILLAC CT62016, 2017, 2018, 2019, 2020
CADILLAC CTS2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
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, 2017, 2018, 2019, 2020, 2021, 2022
CADILLAC ESCALADE ESV2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2012 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2016 (the catalog's model; the bulletin names a series or trim of it)
CADILLAC ESCALADE ESV2018, 2019
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 XT42019, 2020, 2021, 2022
CADILLAC XT52017, 2018, 2019, 2020, 2021, 2022
CADILLAC XT62020, 2021, 2022
CADILLAC XTS2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET ASTRO2000 to 2005
CHEVROLET AVALANCHE 15002002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET BLAZER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET BLAZER2019, 2020, 2021, 2022
CHEVROLET BOLT EV2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET CAMARO2000, 2001, 2002
CHEVROLET CAMARO2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET CAPRICE POLICE PURSUIT2012 to 2015
CHEVROLET CAPTIVA2011 to 2015
CHEVROLET CAVALIER2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET CHEVEROLET SS2017
CHEVROLET CITY EXPRESS2015
CHEVROLET COBALT2005, 2006, 2007, 2008, 2009, 2010
CHEVROLET COLORADO2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
CHEVROLET COLORADO2013 to 2014
CHEVROLET COLORADO2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET CORVETTE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET CRUZE2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
CHEVROLET EQUINOX2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET EXPRESS2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET EXPRESS 15002012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 15002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002014 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 25002017, 2018 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002012 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET EXPRESS 35002014 (the catalog's model; the bulletin names a series or trim of it)
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, 2017, 2018, 2019, 2020
CHEVROLET LUMINA2000, 2001
CHEVROLET MALIBU2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET METRO2000, 2001
CHEVROLET MONTE CARLO2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007
CHEVROLET PRIZM2000 to 2002
CHEVROLET S102000 to 2004
CHEVROLET SILVERADO 15002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 25002012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 35002012, 2013, 2014, 2015 (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SONIC2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020
CHEVROLET SPARK2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021
CHEVROLET SSR2003, 2004, 2005, 2006
CHEVROLET SUBURBAN2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET TAHOE2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET TRACKER2000, 2001, 2002, 2003, 2004
CHEVROLET TRAILBLAZER2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
CHEVROLET TRAILBLAZER2019
CHEVROLET TRAILBLAZER2021, 2022
CHEVROLET TRAVERSE2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET TRAX2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
CHEVROLET UPLANDER2005, 2006, 2007, 2008, 2009
CHEVROLET VENTURE2000, 2001, 2002, 2003, 2004, 2005
CHEVROLET VOLT2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
GMC ACADIA2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
GMC CANYON2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013
GMC CANYON2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
GMC ENVOY2000 to 2001
GMC ENVOY2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
GMC JIMMY2000 to 2001
GMC JIMMY CLASSIC2005
GMC SAFARI2000, 2001, 2002, 2003, 2004, 2005
GMC SAVANA2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
GMC SAVANA 25002012 (the catalog's model; the bulletin names a series or trim of it)
GMC SAVANA 35002012 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 15002000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 25002012 (the catalog's model; the bulletin names a series or trim of it)
GMC SIERRA 35002012 (the catalog's model; the bulletin names a series or trim of it)
GMC SONOMA2000, 2001, 2002, 2003, 2004
GMC TERRAIN2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
GMC YUKON2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022
HUMMER H22003, 2004, 2005, 2006, 2007, 2008, 2009
HUMMER H32006, 2007, 2008, 2009, 2010
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 G32009
PONTIAC G42006
PONTIAC G52007, 2008, 2009, 2010
PONTIAC G62005, 2006, 2007, 2008, 2009, 2010
PONTIAC GRAND AM2000, 2001, 2002, 2003, 2004, 2005
PONTIAC GRAND PRIX2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
PONTIAC MONTANA2000, 2001, 2002, 2003, 2004
PONTIAC MONTANA2005 to 2008
PONTIAC SOLSTICE2006, 2007, 2008, 2009, 2010
PONTIAC SUNFIRE2000, 2001, 2002, 2003, 2004, 2005
PONTIAC TORRENT2006, 2007, 2008, 2009
PONTIAC VIBE2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
SATURN ION2003, 2004, 2005, 2006, 2007
SATURN OUTLOOK2007, 2008, 2009, 2010
SATURN RELAY2005, 2006, 2007
SATURN SKY2007, 2008, 2009, 2010
SATURN VUE2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010

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