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NHTSA ID Number: 10220319
Manufacturer Communication Number: 22-NA-181
Summary
This diagnostic tip advises the tech not to separate the flexplate from the torque convertor or damage my occur if the engine is started while diagnosing for noise from the engine or transmission.
Condition
Some customers may comment on a noise coming from underneath the vehicle equipped with an automatic transmission.
Cause
Technicians may find that the noise is coming from the bell housing area.
Correction
Important: Do Not separate the torque converter from the flex plate.
The purpose of this information is to advise the dealer technician of the following:
It is not recommended to remove the flex plate to torque converter bolts, push the torque converter back towards the transmission and start the engine to determine if the noise is coming from the engine or the transmission.
Damage may occur to the pilot on the front of the torque converter or the pilot hole in the end of the crankshaft or both if the engine is running with the flex plate to torque converter bolts removed.
It is recommended to use chassis ears to isolate the component or assembly that is the loudest source of the noise.
2069 Affected Products
Vehicles
| MAKE | MODEL | YEAR |
| BUICK | ALLURE | 2006-2009 |
| BUICK | CASCADA | 2016-2019 |
| BUICK | CENTURY | 2000-2005 |
| BUICK | ENCLAVE | 2008-2023 |
| BUICK | ENCORE | 2013-2022 |
| BUICK | ENCORE GX | 2020-2022 |
| BUICK | ENVISION | 2016-2022 |
| BUICK | LACROSSE | 2005-2020 |
| BUICK | LESABRE | 2000-2006, 2013 |
| BUICK | LUCERNE | 2006-2012 |
| BUICK | PARK AVENUE | 2000-2005 |
| BUICK | RAINIER | 2003-2007 |
| BUICK | REGAL | 2000-2005, 2008-2020 |
| BUICK | REGAL TOURX | 2018 |
| BUICK | RENDEZVOUS | 2000-2007 |
| BUICK | RIVIERA | 2000 |
| BUICK | SKYLARK | 2000 |
| BUICK | TERRAZA | 2005-2008 |
| BUICK | VERANO | 2012-2017 |
| CADILLAC | ATS | 2013-2019 |
| CADILLAC | ATS-V | 2015-2018 |
| CADILLAC | CATERA | 2000-2003 |
| CADILLAC | CT4 | 2020-2022 |
| CADILLAC | CT5 | 2020-2022 |
| CADILLAC | CT6 | 2013-2021 |
| CADILLAC | CTS | 2003-2019 |
| CADILLAC | CTS-V | 2004-2007, 2010-2012, 2014-2016, 2018 |
| CADILLAC | DEVILLE | 2000-2005 |
| CADILLAC | DTS | 2004-2012 |
| CADILLAC | ELDORADO | 2000-2002 |
| CADILLAC | ELR | 2014-2017 |
| CADILLAC | ESCALADE | 2000-2023 |
| CADILLAC | ESCALADE ESV | 2003-2023 |
| CADILLAC | ESCALADE EXT | 2007-2014 |
| CADILLAC | ESCALADE EXT 1500 | 2002-2011 |
| CADILLAC | ESCALADE HYBRID | 2008-2014 |
| CADILLAC | LYRIQ | 2023 |
| CADILLAC | SEVILLE | 2000-2004 |
| CADILLAC | SLS | 2000, 2002, 2004 |
| CADILLAC | SRX | 2004-2019 |
| CADILLAC | STS | 2000-2012 |
| CADILLAC | XLR | 2003-2009 |
| CADILLAC | XT4 | 2019-2022 |
| CADILLAC | XT5 | 2013-2023 |
| CADILLAC | XT6 | 2020-2023 |
| CADILLAC | XTS | 2013-2020 |
| CHEVROLET | 3500 | 2014-2022 |
| CHEVROLET | 4500 | 2016-2020, 2022 |
| CHEVROLET | 4500HD | 2017-2022 |
| CHEVROLET | 4500XD | 2017-2022 |
| CHEVROLET | 5500HD | 2017-2022 |
| CHEVROLET | 5500XD | 2018-2022 |
| CHEVROLET | 6500HD | 2022 |
| CHEVROLET | 6H | 2000 |
| CHEVROLET | 7H | 2000 |
| CHEVROLET | ALERO EXPORT | 2000-2002 |
| CHEVROLET | ASTRO | 2000-2005 |
| CHEVROLET | AVALANCHE | 2007-2014 |
| CHEVROLET | AVALANCHE 1500 | 2002-2013 |
| CHEVROLET | AVALANCHE 2500 | 2002-2007, 2013 |
| CHEVROLET | AVEO | 2004-2018 |
| CHEVROLET | B SERIES | 2000-2001 |
| CHEVROLET | B6 MEDIUM DUTY | 2000 |
| CHEVROLET | B7 | 2000-2002 |
| CHEVROLET | B7 MEDIUM DUTY | 2000 |
| CHEVROLET | BEAUVILLE | 2000 |
| CHEVROLET | BERETTA | 2002 |
| CHEVROLET | BLAZER | 2000-2009, 2019-2023 |
| CHEVROLET | BOLT EUV | 2022-2023 |
| CHEVROLET | BOLT EV | 2017-2023 |
| CHEVROLET | C SERIES | 2003-2009 |
| CHEVROLET | C10 | 2000-2001 |
| CHEVROLET | C3500 | 2018 |
| CHEVROLET | C4500 | 2003-2010 |
| CHEVROLET | C5500 | 2003-2008 |
| CHEVROLET | C6500 | 2000-2009 |
| CHEVROLET | C7500 | 2000-2009 |
| CHEVROLET | C8500 | 2003-2009 |
| CHEVROLET | CAMARO | 2000-2002, 2010-2023 |
| CHEVROLET | CAPRICE | 2003-2004, 2011-2018 |
| CHEVROLET | CAPRICE POLICE PURSUIT | 2012-2017 |
| CHEVROLET | CAPTIVA | 2008-2018 |
| CHEVROLET | CAPTIVA SPORT | 2009-2012 |
| CHEVROLET | CAVALIER | 2000-2005 |
| CHEVROLET | CHEVY VAN | 2000-2001, 2003 |
| CHEVROLET | CHEYENNE | 2017 |
| CHEVROLET | CITY EXPRESS | 2015-2018 |
| CHEVROLET | CLASSIC | 2004-2006 |
| CHEVROLET | COBALT | 2000, 2002, 2005-2017 |
| CHEVROLET | COBALT SS | 2008-2010 |
| CHEVROLET | COLORADO | 2004-2022 |
| CHEVROLET | CONVENTIONAL | 2000-2001, 2003 |
| CHEVROLET | CORVETTE | 2000-2023 |
| CHEVROLET | CORVETTE Z06 | 2005-2008 |
| CHEVROLET | CORVETTE ZR1 | 2009 |
| CHEVROLET | CRUZE | 2010-2019 |
| CHEVROLET | DENALI | 2000-2006 |
| CHEVROLET | ENVOY | 2000-2002 |
| CHEVROLET | EPICA | 2005 |
| CHEVROLET | EQUINOX | 2005-2022 |
| CHEVROLET | EXPLORER | 2000, 2002 |
| CHEVROLET | EXPRESS | 2000-2022 |
| CHEVROLET | EXPRESS 1500 | 2000-2012, 2014 |
| CHEVROLET | EXPRESS 2500 | 2000-2011, 2014 |
| CHEVROLET | EXPRESS 3500 | 2000-2010, 2012, 2014 |
| CHEVROLET | EXPRESS 4500 | 2009, 2012, 2014, 2016 |
| CHEVROLET | EXPRESS CUTAWAY | 2013 |
| CHEVROLET | EXPRESS CUTAWAY VAN | 2006-2008 |
| CHEVROLET | F SERIES | 2000-2001, 2004-2006 |
| CHEVROLET | F6 | 2000-2001 |
| CHEVROLET | F7 | 2000-2001 |
| CHEVROLET | G SERIES | 2000-2003 |
| CHEVROLET | G VAN | 2000-2002 |
| CHEVROLET | G VAN BUS | 2000-2011 |
| CHEVROLET | G1500 | 2003-2008 |
| CHEVROLET | G25 | 2000-2002 |
| CHEVROLET | G2500 | 2003-2005 |
| CHEVROLET | G30 | 2001-2002 |
| CHEVROLET | G35 | 2000-2002 |
| CHEVROLET | G3500 | 2003-2005, 2008 |
| CHEVROLET | G4500 | 2018 |
| CHEVROLET | H SERIES | 2001 |
| CHEVROLET | HHR | 2006-2011 |
| CHEVROLET | IMPALA | 2000-2020 |
| CHEVROLET | IMPALA (GMX 211) | 2006 |
| CHEVROLET | INCOMPLETE/CUTAWAY C3 | 2000-2005 |
| CHEVROLET | JIMMY | 2000-2002 |
| CHEVROLET | L SERIES | 2000-2002 |
| CHEVROLET | L VAN | 2000-2002 |
| CHEVROLET | LOW CAB 3500 | 2016-2019 |
| CHEVROLET | LOW CAB 4500 | 2016-2017 |
| CHEVROLET | LOW CAB 5500 | 2016-2017 |
| CHEVROLET | LOW CAB FORWARD 6500 | 2018 |
| CHEVROLET | LUMINA | 2000-2002, 2008, 2014 |
| CHEVROLET | LUMINA APV | 2000-2001 |
| CHEVROLET | M SERIES | 2000-2002 |
| CHEVROLET | M VAN | 2000-2002 |
| CHEVROLET | M/L | 2000-2002 |
| CHEVROLET | M/L VAN | 2000 |
| CHEVROLET | MALIBU | 2000-2022 |
| CHEVROLET | MALIBU CLASSIC | 2000-2005, 2007 |
| CHEVROLET | MALIBU ECO | 2013-2014 |
| CHEVROLET | MALIBU HYBRID | 2008-2010, 2016-2019 |
| CHEVROLET | MALIBU MAXX | 2004-2007 |
| CHEVROLET | METRO | 2000-2001 |
| CHEVROLET | MONTE CARLO | 2000-2008, 2010 |
| CHEVROLET | MOTOR HOME | 2000, 2002 |
| CHEVROLET | N300 | 2014-2016, 2018 |
| CHEVROLET | N300 MAX | 2017 |
| CHEVROLET | OPTRA | 2004-2007, 2016 |
| CHEVROLET | ORLANDO | 2017 |
| CHEVROLET | P SERIES | 2000-2002 |
| CHEVROLET | PRIZM | 2000-2002 |
| CHEVROLET | R SERIES | 2000 |
| CHEVROLET | ROADTREK | 2002 |
| CHEVROLET | S/T BLAZER | 2000-2005 |
| CHEVROLET | S10 | 2000-2007, 2016-2018 |
| CHEVROLET | SILVERADO 1500 | 2000-2023 |
| CHEVROLET | SILVERADO 1500 HD | 2001-2005 |
| CHEVROLET | SILVERADO 2500 | 2000-2023 |
| CHEVROLET | SILVERADO 2500 HD | 2000-2004 |
| CHEVROLET | SILVERADO 3500 | 2000-2023 |
| CHEVROLET | SILVERADO 3500 HD | 2000-2001 |
| CHEVROLET | SILVERADO 4500HD | 2019-2023 |
| CHEVROLET | SILVERADO 5500HD | 2019-2023 |
| CHEVROLET | SILVERADO 6500HD | 2019-2023 |
| CHEVROLET | SONIC | 2011-2020 |
| CHEVROLET | SONOMA | 2000-2003 |
| CHEVROLET | SPARK | 2013-2022 |
| CHEVROLET | SPARK EV | 2014-2017 |
| CHEVROLET | SS | 2014-2018 |
| CHEVROLET | SSR | 2003-2007 |
| CHEVROLET | SUBURBAN | 2000-2023 |
| CHEVROLET | SUBURBAN 1500 | 2000-2011, 2021-2022 |
| CHEVROLET | SUBURBAN 2500 | 2000-2006, 2008-2011 |
| CHEVROLET | T SERIES | 2003-2010 |
| CHEVROLET | T6500 | 2001-2002, 2004-2009 |
| CHEVROLET | T7500 | 2004-2009 |
| CHEVROLET | T8500 | 2004-2009 |
| CHEVROLET | TAHOE | 2000-2023 |
| CHEVROLET | TAHOE HYBRID | 2008-2013 |
| CHEVROLET | TAHOE POLICE PURSUIT | 2010-2016 |
| CHEVROLET | TOPKICK | 2002 |
| CHEVROLET | TRACKER | 2000-2004 |
| CHEVROLET | TRAILBLAZER | 2000-2009, 2013-2014, 2017-2022 |
| CHEVROLET | TRAILBLAZER 360 | 2002-2009 |
| CHEVROLET | TRAILBLAZER EXT | 2002-2004, 2006 |
| CHEVROLET | TRAILBLAZER EXT 370 | 2002-2006 |
| CHEVROLET | TRANS SPORT | 2000-2002, 2005 |
| CHEVROLET | TRAVERSE | 2008-2023 |
| CHEVROLET | TRAX | 2013-2022 |
| CHEVROLET | UPLANDER | 2005-2009 |
| CHEVROLET | V SERIES | 2000-2001 |
| CHEVROLET | VAN | 2000-2002 |
| CHEVROLET | VENTURE | 2000-2005 |
| CHEVROLET | VOLT | 2011-2019 |
| CHEVROLET | W SERIES | 2000 |
| CHEVROLET | W SERIES C3 3500 | 2006-2007 |
| CHEVROLET | W-SERIES | 2000-2011 |
| CHEVROLET | W3500 | 2000-2001, 2003-2010 |
| CHEVROLET | W4 | 2000 |
| CHEVROLET | W4500 | 2000-2001, 2003-2010 |
| CHEVROLET | W5500 | 2000-2002, 2004-2010 |
| CHEVROLET | YUKON | 2000-2003 |
| CHEVROLET | YUKON XL | 2000 |
| GEO | METRO | 2000-2001 |
| GEO | PRIZM | 2000-2002 |
| GEO | TRACKER | 2000-2002 |
| GMC | 6H | 2000 |
| GMC | 7H | 2000 |
| GMC | ACADIA | 2007-2023 |
| GMC | B SERIES | 2000-2001 |
| GMC | B6 MEDIUM DUTY | 2000 |
| GMC | B7 | 2000-2002 |
| GMC | B7 MEDIUM DUTY | 2000 |
| GMC | BLAZER | 2000-2002 |
| GMC | C SERIES | 2000-2009 |
| GMC | C4500 | 2003-2009 |
| GMC | C5500 | 2003-2009 |
| GMC | C6500 | 2000-2009 |
| GMC | C6H042 | 2000 |
| GMC | C7500 | 2000-2009 |
| GMC | C8500 | 2003-2009 |
| GMC | CANYON | 2004-2013, 2015-2022 |
| GMC | CONVENTIONAL | 2000-2001, 2003 |
| GMC | DENALI | 2000-2003, 2007-2015 |
| GMC | DIAMOND EDITION | 2000-2001 |
| GMC | ENVOY | 2000-2013 |
| GMC | ENVOY 360 | 2002-2009 |
| GMC | ENVOY DENALI | 2006-2007 |
| GMC | ENVOY DENALI XL | 2006 |
| GMC | ENVOY XL | 2002-2004, 2006 |
| GMC | ENVOY XL 370 | 2002-2006 |
| GMC | ENVOY XUV | 2003-2005 |
| GMC | EXPRESS | 2000-2002, 2009 |
| GMC | F SERIES | 2000-2001, 2004-2006 |
| GMC | F6 | 2000-2001 |
| GMC | F7 | 2000-2001 |
| GMC | G SERIES | 2000-2003 |
| GMC | G VAN | 2000-2002 |
| GMC | G VAN BUS | 2000-2011 |
| GMC | G1500 | 2003-2008 |
| GMC | G25 | 2000-2002 |
| GMC | G2500 | 2003-2005 |
| GMC | G35 | 2000-2002 |
| GMC | G3500 | 2003-2005, 2017-2018 |
| GMC | GM | 2001-2002 |
| GMC | INCOMPLETE/CUTAWAY C3 | 2000-2004 |
| GMC | JIMMY | 2000-2004 |
| GMC | JIMMY CLASSIC | 2005 |
| GMC | L SERIES | 2000-2003 |
| GMC | L VAN | 2000-2002 |
| GMC | M SERIES | 2000-2002 |
| GMC | M VAN | 2000-2002 |
| GMC | M/L SERIES | 2000-2002 |
| GMC | M/L VAN | 2000-2001 |
| GMC | P SERIES | 2000-2002 |
| GMC | S/T JIMMY | 2000-2001 |
| GMC | S15 | 2000-2002 |
| GMC | SAFARI | 2000-2005 |
| GMC | SAFARI (GMC) | 2000-2005 |
| GMC | SAVANA | 2000-2022 |
| GMC | SAVANA 1500 | 2000-2017 |
| GMC | SAVANA 2500 | 2000-2018 |
| GMC | SAVANA 3500 | 2000-2018 |
| GMC | SIERRA 1500 | 2000-2023 |
| GMC | SIERRA 1500 HD | 2001-2005 |
| GMC | SIERRA 2500 | 2000-2023 |
| GMC | SIERRA 2500 HD | 2001-2005 |
| GMC | SIERRA 3500 | 2000-2023 |
| GMC | SIERRA 3500 HD | 2000-2001 |
| GMC | SIERRA DENALI | 2002-2003, 2007-2020 |
| GMC | SONOMA | 2000-2006 |
| GMC | SONOMA CREW | 2001-2005 |
| GMC | SUBURBAN | 2000-2004 |
| GMC | T SERIES | 2007-2009 |
| GMC | T4500 | 2005 |
| GMC | T6500 | 2004-2009 |
| GMC | T7500 | 2004-2010 |
| GMC | T8500 | 2004-2009 |
| GMC | TAHOE | 2000-2003 |
| GMC | TERRAIN | 2009-2022 |
| GMC | TOPKICK | 2000-2010 |
| GMC | TOPKICK 6500 | 2006 |
| GMC | TOPKICK 8500 | 2006 |
| GMC | V SERIES | 2000 |
| GMC | VANDURA | 2000 |
| GMC | W SERIES | 2000 |
| GMC | W SERIES C3 3500 | 2006-2007 |
| GMC | W-SERIES | 2001-2011 |
| GMC | W3500 | 2000-2001, 2003-2010 |
| GMC | W4 | 2000 |
| GMC | W4500 | 2000-2001, 2003-2010 |
| GMC | W5500 | 2000-2010 |
| GMC | W5500HD | 2007 |
| GMC | YUKON | 2000-2023 |
| GMC | YUKON DENALI | 2000-2013, 2015-2019 |
| GMC | YUKON DENALI XL | 2003-2018 |
| GMC | YUKON HYBRID | 2008-2013 |
| GMC | YUKON XL | 2000-2022 |
| GMC | YUKON XL 1500 | 2000-2012 |
| GMC | YUKON XL 2500 | 2000-2013 |
| GMC | YUKON XL DENALI | 2001-2003 |
1 Associated Document
Manufacturer Communications
Bulletin No.: 22-NA-181
Date: September, 2022
https://www.nhtsa.gov/recalls?nhtsaId=10220319
MC-10220319-0001.pdf 489.615KB
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NHTSA ID Number: 10224273
Manufacturer Communication Number: PIP5640A
Summary
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5640A
Published date: 09/1/2022
https://www.nhtsa.gov/recalls?nhtsaId=10224273
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NHTSA ID Number: 10193450
Manufacturer Communication Number: PIP5640A
Summary
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5640A
Published date: 04/12/2021
https://www.nhtsa.gov/recalls?nhtsaId=10193450
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NHTSA ID Number: 10160987
Manufacturer Communication Number: PIP5640
Summary
This Preliminary Information communication provides information to the technician to not remove the torque converter bolts and start the engine as this may cause damage to the torque converter of the crankshaft on vehicles equipped with an automatic transmission.
1 Associated Document
Manufacturer Communications
Bulletin No.: PIP5640
Published date: 05/7/2019
https://www.nhtsa.gov/recalls?nhtsaId=10160987
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| “This site contains affiliate links for which OEMDTC may be compensated” |
- Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
- Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals. Provides consistent shift performance, even in extreme conditions.
- Formulated with full-synthetic base stocks and advanced additive technology to meet the challenging demands of automatic transmissions
- Enhanced anti-shudder protection for smooth shifting and maximum power transfer
- Developed with anti-wear technology to help improve transmission durability
- Engineered with a proprietary blend of base oils and advanced additives to provide better oil flow at low temperatures and greater film protection at higher temperatures
- Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids
- Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance.
- Designed for anti-wear protection and shear stability
- Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
- ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- FOR USE IN 95% of ATF VEHICLES INCLUDING MOST CVTs in operation with US registered light duty applications
- HIGH PERFORMANCE CONDITIONING AGENTS prolong seal elasticity to prevent leaks
- IMPROVE DURABILITY & TRANSMISSION LIFE with anti-wear technology to avoid costly repairs
- ENHANCED HIGH & LOW TEMP PERFORMANCE supports transmission fluid in all weather situations
- FULL SYNTHETIC FORMULA protects against engine breakdown better than conventional fluids
- Backward compatible with previous Dexron automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous Dexron fluids
- Improved performance over previous Dexron fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals
- Backward compatible with previous DEXRON automatic transmission fluids and can be used as a much-improved replacement for older vehicles/transmissions originally using previous DEXRON fluids
- Improved performance over previous DEXRON fluids in: friction durability, viscosity stability, aeration and foam control, and oxidation resistance
- Potential to enable improved fuel economy and longer transmission life
- Provides for extended drain intervals
- Premium synthetic blend formula exceeds DEXRON-III H requirements
- Outstanding sludge resistance provides superior transmission life
- Enhanced friction durability improves shifting performance
- Certified and approved by General Motors for all cars and trucks that require DEXRON -VI
- Also satisfied requirements of DEXRON, DEXRON-III H, III, IIE and II
- Package Dimensions: 6.096 H x 21.336 L x 11.43 W (centimeters)
- Country of Origin : United States
- Package Weight: 1.85 pounds
- Fit type: Vehicle Specific
Last update on 2024-04-02 / Affiliate links / Images from Amazon Product Advertising API
This product presentation was made with AAWP plugin.
SEOCONTENT-START
Copyright 2022 General Motors LLC. All Rights Reserved. Service Bulletin Bulletin No.: 22-NA-181 Date: September, 2022 INFORMATION Subject: Diagnostic Tip on Avoiding Torque Converter or Crankshaft Damage While Diagnosing Noise Concerns This bulletin replaces PIP5640A. Please discard PIP5640A. Brand: Model: Model Year: VIN: Engine: Transmission: from to from to Buick GM Passenger Cars and Trucks 2000 2023 All All All All Cadillac Chevrolet GMC Involved Region or Country North America Condition Some customers may comment on a noise coming from underneath the vehicle equipped with an automatic transmission. Cause Technicians may find that the noise is coming from the bell housing area. Correction Important: Do Not separate the torque converter from the flex plate. The purpose of this information is to advise the dealer technician of the following: It is not recommended to remove the flex plate to torque converter bolts, push the torque converter back towards the transmission and start the engine to determine if the noise is coming from the engine or the transmission. Damage may occur to the pilot on the front of the torque converter or the pilot hole in the end of the crankshaft or both if the engine is running with the flex plate to torque converter bolts removed. It is recommended to use chassis ears to isolate the component or assembly that is the loudest source of the noise. Version 1 Modified Released September 01, 2022 GM bulletins are intended for use by professional technicians, NOT a “do-it-yourselfer”. They are written to inform these technicians of conditions that may occur on some vehicles, or to provide information that could assist in the proper service of a vehicle. Properly trained technicians have the equipment, tools, safety instructions, and know-how to do a job properly and safely. If a condition is described, DO NOT assume that the bulletin applies to your vehicle, or that your vehicle will have that condition. See your GM dealer for information on whether your vehicle may benefit from the information. WE SUPPORT VOLUNTARY TECHNICIAN CERTIFICATION
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SEOCONTENT-END