AC Blows Warm or Poor Performance – 2020-2021 GM

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NHTSA ID Number: 10216361

Manufacturer Communication Number: PIT5099F

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.

 


Condition / Concern

Customer may comment that there A/C blows warm or they have poor A/C performance.

 

Recommendations / Instructions

When technical assistance is required and before calling GM TAC, the following information will be helpful in assisting with diagnosing the vehicle.

Please have the following information available:
* A/C High and Low pressures
* High side sensor reading
* A/C compressor duty cycle
* Refrigerant solenoid valve command in HVAC data (if equipped)
* Outside temperature
* Humidity
* Vent temperature

If the unit is equipped with an Automatic HVAC system, go into the HVAC data with the scan tool and get the following readings:
* Evaporator temperature sensor reading (if equipped)
* Inside temperature sensor reading
* Outside temperature sensor reading
* Duct temperature sensor readings

 


980 Affected Products

Vehicles

MAKE MODEL YEAR
BUICK ALLURE 2006
BUICK CASCADA 2016-2019
BUICK CENTURY 2000-2005
BUICK ENCLAVE 2008-2021
BUICK ENCORE 2013-2021
BUICK ENVISION 2016-2021
BUICK LACROSSE 2005-2019
BUICK LESABRE 2000-2005
BUICK LUCERNE 2006-2011
BUICK PARK AVENUE 2000-2005
BUICK RAINIER 2004-2007
BUICK REGAL 2000-2004, 2011-2020
BUICK RENDEZVOUS 2002-2007
BUICK TERRAZA 2005-2007
BUICK VERANO 2012-2017
CADILLAC ATS 2013-2019
CADILLAC CT4 2020-2021
CADILLAC CT5 2020-2021
CADILLAC CT6 2016-2020
CADILLAC CTS 2003-2019
CADILLAC DEVILLE 2000-2005
CADILLAC DTS 2006-2011
CADILLAC ELDORADO 2000-2002
CADILLAC ELR 2014-2016
CADILLAC ESCALADE 2000, 2002-2021
CADILLAC ESCALADE ESV 2003-2010, 2012, 2016, 2018-2019
CADILLAC SEVILLE 2000-2004
CADILLAC SRX 2004-2016
CADILLAC STS 2005-2011
CADILLAC XLR 2004-2009
CADILLAC XT4 2019-2021
CADILLAC XT5 2017-2021
CADILLAC XT6 2020-2021
CADILLAC XTS 2013-2019
CHEVROLET ASTRO 2000-2005
CHEVROLET AVALANCHE 2007-2013
CHEVROLET AVALANCHE 1500 2002-2006
CHEVROLET BLAZER 2000-2005, 2019-2021
CHEVROLET BOLT EV 2017-2021
CHEVROLET CAMARO 2000-2002, 2010-2021
CHEVROLET CAPRICE 2012-2015
CHEVROLET CAPTIVA 2011-2015
CHEVROLET CAPTIVA SPORT 2012
CHEVROLET CAVALIER 2000-2005
CHEVROLET CITY EXPRESS 2015, 2017
CHEVROLET COBALT 2005-2010
CHEVROLET COLORADO 2004-2012, 2015-2021
CHEVROLET CORVETTE 2000-2020
CHEVROLET CRUZE 2011-2019
CHEVROLET EQUINOX 2005-2021
CHEVROLET EXPRESS 2000-2021
CHEVROLET EXPRESS 1500 2012, 2014
CHEVROLET EXPRESS 2500 2014
CHEVROLET EXPRESS 3500 2012, 2014
CHEVROLET EXPRESS 4500 2012, 2016
CHEVROLET HHR 2006-2011
CHEVROLET IMPALA 2000-2020
CHEVROLET LUMINA 2000-2001
CHEVROLET MALIBU 2000-2021
CHEVROLET METRO 2000-2001
CHEVROLET MONTE CARLO 2000-2007
CHEVROLET P SERIES 2000
CHEVROLET PRIZM 2000-2002
CHEVROLET S10 2000-2004
CHEVROLET SILVERADO 1500 2000-2021
CHEVROLET SILVERADO 2500 2000-2021
CHEVROLET SILVERADO 3500 2000-2021
CHEVROLET SONIC 2012-2020
CHEVROLET SPARK 2013-2021
CHEVROLET SS 2014-2017
CHEVROLET SSR 2003-2006
CHEVROLET SUBURBAN 2000-2021
CHEVROLET TAHOE 2000-2021
CHEVROLET TRACKER 2000-2004
CHEVROLET TRAILBLAZER 2002-2009, 2019, 2021
CHEVROLET TRAVERSE 2009-2021
CHEVROLET TRAX 2013-2021
CHEVROLET UPLANDER 2005-2009
CHEVROLET VENTURE 2000-2005
CHEVROLET VOLT 2011-2019
GMC ACADIA 2007-2021
GMC CANYON 2004-2012, 2015-2021
GMC ENVOY 2000, 2002-2009
GMC JIMMY 2000-2001
GMC JIMMY CLASSIC 2005
GMC SAFARI 2000-2005
GMC SAVANA 2000-2021
GMC SAVANA 2500 2012
GMC SAVANA 3500 2012
GMC SIERRA 1500 2000-2021
GMC SIERRA 2500 2000-2021
GMC SIERRA 3500 2000-2021
GMC SONOMA 2000-2004
GMC SUBURBAN 2000
GMC TERRAIN 2010-2021
GMC YUKON 2000-2021
HUMMER H2 2003-2009
HUMMER H3 2006-2010
OLDSMOBILE ALERO 2000-2004
OLDSMOBILE AURORA 2000-2003
OLDSMOBILE BRAVADA 2000-2004
OLDSMOBILE INTRIGUE 2000-2002
OLDSMOBILE SILHOUETTE 2000-2004
PONTIAC AZTEK 2001-2005
PONTIAC BONNEVILLE 2000-2005
PONTIAC FIREBIRD 2000-2002
PONTIAC G3 2009
PONTIAC G4 2006
PONTIAC G5 2007-2010
PONTIAC G6 2005-2010
PONTIAC GRAND AM 2000-2005
PONTIAC GRAND PRIX 2000-2008
PONTIAC MONTANA 2000-2008
PONTIAC SOLSTICE 2006-2010
PONTIAC SUNFIRE 2000-2005
PONTIAC TORRENT 2006-2009
PONTIAC VIBE 2003-2010
SATURN AURA 2007-2010
SATURN ION 2003-2007
SATURN OUTLOOK 2007-2010
SATURN RELAY 2005-2007
SATURN SKY 2007-2010
SATURN VUE 2002-2010

 


1 Associated Document

Manufacturer Communications

Bulletin No.: PIT5099F
Published date: 06/13/2022

https://www.nhtsa.gov/recalls?nhtsaId=10216361

MC-10216361-9999.pdf 95.942KB

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“This site contains affiliate links for which OEMDTC may be compensated”
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