Chevrolet Express Service Bulletins (2003)

585 manufacturer communications on file.

• Date not available•Document ID: 10013493

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:COOLING SYSTEM

  Mfr Comm. #:

  3375

  Date Added:

  April 20, 2005

  Manufacturer:

  CHEVROLET

  Summary

  COOLANT LEAK FROM THE LOWER RADIATOR HOSE. *TT

  Associated Products (4)

  2004 Chevrolet Express2004 GMC Savana2003 Chevrolet Express2003 GMC Savana
  Associated Documents

  • DownloadMC-10013493-0001.pdf↗
• Date not available•Document ID: 10011753

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION

  Mfr Comm. #:

  3243

  Date Added:

  January 31, 2005

  Manufacturer:

  CHEVROLET

  Summary

  LEAK FROM THE VENT 4L80E/4L85E TRANSMISSION. *EH

  Associated Products (12)

  2005 Chevrolet Silverado2005 GMC Sierra2004 Chevrolet Express2004 Chevrolet Silverado2004 GMC Sierra2003 Chevrolet Express2003 Chevrolet Silverado2003 GMC Sierra2002 Chevrolet Express2002 Chevrolet Silverado2002 GMC Savana2002 GMC Sierra
  Associated Documents

  • DownloadMC-10011753-0001.pdf↗
• Date not available•Document ID: 10011692

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING

  Mfr Comm. #:

  3232

  Date Added:

  January 28, 2005

  Manufacturer:

  CHEVROLET

  Summary

  MISFIRE AT IDLE COLD AND POSSIBLE P0171 AND OR P0174. *EH

  Associated Products (37)

  2003 Cadillac Escalade2003 Chevrolet Avalanche2003 Chevrolet Express2003 Chevrolet Silverado2003 Chevrolet Suburban2003 Chevrolet Tahoe2003 Chevrolet Trailblazer2003 GMC Savana2002 Cadillac Escalade2002 Chevrolet Avalanche2002 Chevrolet Express2002 Chevrolet Silverado2002 Chevrolet Suburban2002 Chevrolet Tahoe2002 Chevrolet Trailblazer2002 GMC Savana2001 Chevrolet Avalanche2001 Chevrolet Express2001 Chevrolet Silverado2001 Chevrolet Suburban+ 17 more
  Associated Documents

  • DownloadMC-10011692-0001.pdf↗
• Date not available•Document ID: 10010364

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE

  Mfr Comm. #:

  3056

  Date Added:

  November 17, 2004

  Manufacturer:

  GMC

  Summary

  CHECK ENGINE LIGHT WITH A P0300 DUE TO 2-4 CYLINDERS MISFIRING ON THE SAME BANK OF THE ENGINE. *TT

  Associated Products (78)

  2005 Buick Rainier2005 Cadillac CTS2005 Cadillac Escalade2005 Chevrolet Avalanche2005 Chevrolet Express2005 Chevrolet Silverado2005 Chevrolet Suburban2005 Chevrolet Tahoe2005 Chevrolet Trailblazer2005 GMC Envoy2005 GMC Savana2005 GMC Sierra2005 GMC Yukon2005 Hummer H22005 Pontiac GTO2004 Buick Rainier2004 Cadillac CTS2004 Cadillac Escalade2004 Chevrolet Avalanche2004 Chevrolet Corvette+ 58 more
  Associated Documents

  • DownloadMC-10010364-0001.pdf↗
• Date not available•Document ID: 10010363

  Service Bulletin/Repair Instructions
  EQUIPMENT

  Mfr Comm. #:

  3044

  Date Added:

  November 17, 2004

  Manufacturer:

  CHEVROLET

  Summary

  GENERATION 5 ONSTAR STEERING WHEEL CONTROL FUNCTION. *TT

  Associated Products (38)

  2004 Buick LeSabre2004 Buick Rendezvous2004 Cadillac CTS2004 Cadillac Deville2004 Cadillac Escalade2004 Cadillac Seville2004 Chevrolet Cavalier2004 Chevrolet Express2004 Chevrolet Silverado2004 Chevrolet Suburban2004 Chevrolet Tahoe2004 Chevrolet Trailblazer2004 GMC Envoy2004 GMC Savana2004 GMC Sierra2004 Hummer H22004 Pontiac Sunfire2004 Saturn Ion2004 Saturn Vue2003 Buick LeSabre+ 18 more
  Associated Documents

  • DownloadMC-10010363-0001.pdf↗
• Date not available•Document ID: 10009520

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  3089

  Date Added:

  October 4, 2004

  Manufacturer:

  CHEVROLET

  Summary

  SERVICE ENGINE SOON LIGHT AND REDUCED ENGINE POWER WITH A DIAGNOSTIC TROUBLE CODE P1516. DIAGNOSTIC TROUBLE CODES P0120, P0220, P1514, P1515, P1518 AND P2135 MAY ALSO BE PRESENT. *TT

  Associated Products (64)

  2006 Buick Rainier2006 Cadillac Escalade2006 Chevrolet Avalanche2006 Chevrolet Corvette2006 Chevrolet Express2006 Chevrolet Monte Carlo2006 Chevrolet Silverado2006 Chevrolet SSR2006 Chevrolet Tahoe2006 Chevrolet Trailblazer2006 GMC Envoy2006 GMC Savana2006 GMC Sierra2006 GMC Yukon2006 Hummer H22006 Pontiac GTO2005 Buick Rainier2005 Cadillac Escalade2005 Chevrolet Avalanche2005 Chevrolet Corvette+ 44 more
  Associated Documents

  • DownloadMC-10009520-0001.pdf↗
• Date not available•Document ID: 10008872

  Service Bulletin/Repair Instructions
  POWER TRAIN:AXLE ASSEMBLY

  Mfr Comm. #:

  3001

  Date Added:

  August 25, 2004

  Manufacturer:

  CHEVROLET

  Summary

  THE SERVICE INFORMATION AND OWNERS MANUAL DO NOT SHOW A SERVICE INTERVAL FOR THE 8.6, 9.5, 9.75, 10.5, AND 11.5 INCH REAR AXLES WITH OR WITHOUT G80 (LOCKING DIFFERENTIAL). *TT 2006 ALL GENERAL MOTORS LIGHT DUTY TRUCKS, VANS AND UTILITIES. *TT

  Associated Products (59)

  2005 Cadillac Escalade2005 Chevrolet Avalanche2005 Chevrolet Silverado2005 Chevrolet Suburban2005 Chevrolet Tahoe2005 GMC Savana2005 GMC Sierra2005 GMC Yukon2004 Cadillac Escalade2004 Chevrolet Avalanche2004 Chevrolet Express2004 Chevrolet Silverado2004 Chevrolet Suburban2004 Chevrolet Tahoe2004 GMC Savana2004 GMC Sierra2004 GMC Yukon2003 Cadillac Escalade2003 Chevrolet Avalanche2003 Chevrolet Express+ 39 more
  Associated Documents

  • DownloadMC-10008872-0001.pdf↗
• Date not available•Document ID: 10008802

  Service Bulletin/Repair Instructions
  POWER TRAIN

  Mfr Comm. #:

  3002

  Date Added:

  August 23, 2004

  Manufacturer:

  CHEVROLET

  Summary

  4L60E/4L65E INTERMITTENT NEUTRAL CONDITION WHILE ACCELERATING FROM A STOP OR WHILE DRIVING. *TT 1999-2006 GM CARS, LIGHT DUTY TRUCKS AND UTILITIES. *TT

  Associated Products (57)

  2004 Buick Rainier2004 Chevrolet Avalanche2004 Chevrolet Blazer2004 Chevrolet Express2004 Chevrolet Silverado2004 Chevrolet Suburban2004 Chevrolet Tahoe2004 Chevrolet Trailblazer2004 GMC Envoy2004 GMC Savana2004 GMC Sierra2004 GMC Yukon2003 Chevrolet Avalanche2003 Chevrolet Blazer2003 Chevrolet Express2003 Chevrolet Silverado2003 Chevrolet Suburban2003 Chevrolet Tahoe2003 Chevrolet Trailblazer2003 GMC Envoy+ 37 more
  Associated Documents

  • DownloadMC-10008802-0001.pdf↗
• Date not available•Document ID: 10005514

  Service Bulletin/Repair Instructions
  POWER TRAIN:AUTOMATIC TRANSMISSION

  Mfr Comm. #:

  3259C

  Date Added:

  March 2, 2004

  Manufacturer:

  GMC

  Summary

  4L80E, 4L85E WHINE NOISE IN FIRST AND SECOND GEAR. *TT

  Associated Products (51)

  2006 Chevrolet Avalanche2006 Chevrolet Express2006 Chevrolet Silverado2006 Chevrolet Suburban2006 GMC Savana2006 GMC Sierra2006 GMC Yukon2005 Chevrolet Avalanche2005 Chevrolet Express2005 Chevrolet Silverado2005 Chevrolet Suburban2005 GMC Sierra2004 Chevrolet Avalanche2004 Chevrolet Express2004 Chevrolet Silverado2004 Chevrolet Suburban2004 GMC Savana2004 GMC Sierra2004 GMC Yukon2003 Chevrolet Avalanche+ 31 more
  Associated Documents

  • DownloadMC-10005514-0001.pdf↗
• Date not available•Document ID: 10004121

  Service Bulletin/Repair Instructions
  ENGINE AND ENGINE COOLING:ENGINE

  Mfr Comm. #:

  01342

  Date Added:

  November 19, 2003

  Manufacturer:

  CHEVROLET

  Summary

  4.3L LU3 ENGINE HOT SOAK HESITATION LOW POWER. *TT

  Associated Products (5)

  2003 Chevrolet Blazer2003 Chevrolet Express2003 Chevrolet Silverado2003 GMC Savana2003 GMC Sierra
  Associated Documents

  • DownloadMC-10004121-0001.pdf↗
• July 18, 2025•Document ID: 11020816

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5601C

  Date Added:

  July 23, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.

  Associated Products (726)

  2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac Celestiq2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac Optiq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette+ 706 more
  Associated Documents

  • DownloadMC-11020816-0001.pdf↗
• March 28, 2025•Document ID: 11017252

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM; UNKNOWN OR OTHER

  Mfr Comm. #:

  23-NA-001

  Date Added:

  April 28, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin provides information for dealers/technicians on OnStar Module 2G Sunset Information.

  Associated Products (237)

  2016 Cadillac ELR2015 Cadillac ELR2015 Chevrolet Camaro2015 Chevrolet Express2014 Buick LaCrosse2014 Buick Regal2014 Buick Verano2014 Cadillac ATS2014 Cadillac CTS2014 Cadillac ELR2014 Cadillac SRX2014 Chevrolet Camaro2014 Chevrolet Corvette2014 Chevrolet Cruze2014 Chevrolet Equinox2014 Chevrolet Express2014 Chevrolet Impala2014 Chevrolet Malibu2014 Chevrolet Silverado2014 Chevrolet Sonic+ 217 more
  Associated Documents

  • DownloadMC-11017252-0001.pdf↗
• February 20, 2025•Document ID: 11014455

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIP5358D

  Date Added:

  February 25, 2025

  Manufacturer:

  CADILLAC

  Summary

  This Preliminary Information communication provides information to the technician about vehicles that have an unusual noise and is difficult to identify, isolate or pinpoint. Technician should get record a sound clip or take a video of the noise for assessment by engineering. Technician will need to call General Motors Technical Assistance Center for further assistance.

  Associated Products (801)

  2025 Chevrolet Silverado2024 Chevrolet Silverado2023 Chevrolet Silverado2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac Escalade ESV2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu+ 781 more
  Associated Documents

  • DownloadMC-11014455-0001.pdf↗
• December 18, 2024•Document ID: 11012907

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  03-06-01-023I

  Date Added:

  January 17, 2025

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

  Associated Products (218)

  2025 Chevrolet Silverado2025 Chevrolet Suburban2025 GMC Savana2025 GMC Sierra2024 Chevrolet Express2024 Chevrolet Silverado2024 Chevrolet Suburban2024 GMC Savana2024 GMC Sierra2023 Chevrolet 4500HD2023 Chevrolet 5500HD2023 Chevrolet Express2023 Chevrolet Silverado2023 Chevrolet Suburban2023 GMC Savana2023 GMC Sierra2022 Chevrolet 35002022 Chevrolet 45002022 Chevrolet 4500HD2022 Chevrolet 4500XD+ 198 more
  Associated Documents

  • DownloadMC-11012907-0001.pdf↗
• October 25, 2024•Document ID: 11009156

  Service Bulletin/Repair Instructions
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  PIP4723J

  Date Added:

  October 25, 2024

  Manufacturer:

  GMC

  Summary

  This Preliminary Information communicates to the dealer the process for downloading or updating operating software for the Tire Pressure Monitor, Active Fuel Injector tester, multi media tester, PICO Scope, GR8 starting/charging tester  and Vehicle Data Recorder tools, giving website address and step by step instructions to complete the update.

  Associated Products (856)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Corvette2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 836 more
  Associated Documents

  • DownloadMC-11009156-0001.pdf↗
• October 7, 2024•Document ID: 11010544

  Service Bulletin/Repair Instructions
  ENGINE

  Mfr Comm. #:

  03-06-01-023H

  Date Added:

  November 14, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This service bulletin explains how to measure for oil consumption and possible reasons for loss of oil.

  Associated Products (181)

  2025 Chevrolet Silverado2025 GMC Savana2025 GMC Sierra2024 Chevrolet Express2024 Chevrolet Silverado2024 GMC Savana2024 GMC Sierra2023 Chevrolet Express2023 Chevrolet Silverado2023 GMC Savana2023 GMC Sierra2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Silverado2022 GMC Savana2022 GMC Sierra2021 Chevrolet Express2021 Chevrolet Silverado2021 GMC Savana2021 GMC Sierra+ 161 more
  Associated Documents

  • DownloadMC-11010544-0001.pdf↗
• September 12, 2024•Document ID: 11007744

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099H

  Date Added:

  September 12, 2024

  Manufacturer:

  CHEVROLET

  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.

  Associated Products (834)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 814 more
  Associated Documents

  • DownloadMC-11007744-0001.pdf↗
• September 12, 2024•Document ID: 11007743

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT5099H

  Date Added:

  September 12, 2024

  Manufacturer:

  CHEVROLET

  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.

  Associated Products (834)

  2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 Cadillac Escalade2022 Cadillac XT42022 Cadillac XT52022 Cadillac XT62022 Chevrolet Blazer2022 Chevrolet Bolt EV2022 Chevrolet Camaro2022 Chevrolet Colorado2022 Chevrolet Equinox2022 Chevrolet Express2022 Chevrolet Malibu2022 Chevrolet Silverado2022 Chevrolet Suburban2022 Chevrolet Tahoe2022 Chevrolet Trailblazer+ 814 more
  Associated Documents

  • DownloadMC-11007743-0001.pdf↗
• September 6, 2024•Document ID: 11007208

  Service Bulletin/Repair Instructions
  UNKNOWN OR OTHER

  Mfr Comm. #:

  PIT3271P

  Date Added:

  September 6, 2024

  Manufacturer:

  CHEVROLET

  Summary

  This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire calibration for tires that have been sized, tested and designed for the vehicle in question and its applications. Technician should not use the information that is provided by the antilock braking system tire size selection.

  Associated Products (1056)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Sierra2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore+ 1036 more
  Associated Documents

  • DownloadMC-11007208-0001.pdf↗
• August 26, 2024•Document ID: 11006621

  Service Campaign
  ELECTRICAL SYSTEM

  Mfr Comm. #:

  General Communication

  Date Added:

  August 26, 2024

  Manufacturer:

  CHEVROLET

  Summary

  Vehicle Wide Programming (VWP) is a new process to update software on GM Vehicles. It provides the ability via a single selection within Techline Connect to first identify which modules need updating and then proceed to updating affected modules (with some exceptions). The updating of modules is completed in parallel instead of the technician needing to update one module at a time. This allows a more streamlined approach for dealers and customers.

  Associated Products (1209)

  2025 Buick Enclave2025 Buick Encore2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac XT52025 Cadillac XT62025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Trailblazer2025 Chevrolet Traverse2025 Chevrolet Trax2025 GMC Acadia2025 GMC Hummer EV Pickup2025 GMC Terrain2024 BrightDrop Zevo2024 Buick Enclave2024 Buick Encore2024 Buick Encore GX+ 1189 more
  Associated Documents

  • DownloadMC-11006621-0001.pdf↗