Hummer H2 Service Bulletins
1,729 manufacturer communications on file.
- July 18, 2025•Document ID: 11020816Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP5601C
- Date Added:
- July 23, 2025
- Manufacturer:
- CHEVROLET
SummaryThis 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 moreAssociated Documents - June 9, 2025•Document ID: 11019693Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP4902S
- Date Added:
- June 24, 2025
- Manufacturer:
- CHEVROLET
SummaryThis preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
Associated Products (731)2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 711 moreAssociated Documents - June 7, 2025•Document ID: 11026104Service Bulletin/Repair InstructionsWHEELS
- Mfr Comm. #:
- 25-NA-156
- Date Added:
- December 4, 2025
- Manufacturer:
- CADILLAC
SummaryThis service bulletin provides information on Tire Sidewall Irregularities.
Associated Products (710)2026 Buick Enclave2026 Buick Encore2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop+ 690 moreAssociated Documents - June 5, 2025•Document ID: 11026017Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 00-06-01-026R
- Date Added:
- December 3, 2025
- Manufacturer:
- BUICK
SummaryThis service bulletin provides information on replacing the intake manifold when the engine is replaced after severe internal engine damage.
Associated Products (633)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Express2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban+ 613 moreAssociated Documents - May 30, 2025•Document ID: 11019074Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5074R
- Date Added:
- June 4, 2025
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
Associated Products (1004)2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 moreAssociated Documents - May 30, 2025•Document ID: 11019073Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5074R
- Date Added:
- June 4, 2025
- Manufacturer:
- CADILLAC
SummaryThis Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
Associated Products (1004)2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 moreAssociated Documents - May 30, 2025•Document ID: 11019072Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5074R
- Date Added:
- June 4, 2025
- Manufacturer:
- CHEVROLET
SummaryThis Preliminary Information communication provides information to the technician about the use of J-35616-64B and Mini 50 terminal test probe, replacement terminals, and terminated leads.
Associated Products (1004)2026 Buick Enclave2026 Buick Encore GX2026 Buick Envision2026 Buick Envista2026 Cadillac Celestiq2026 Cadillac CT42026 Cadillac CT52026 Cadillac Escalade2026 Cadillac Escalade ESV2026 Cadillac Escalade IQ2026 Cadillac Escalade IQL2026 Cadillac Lyriq2026 Cadillac Optiq2026 Cadillac Vistiq2026 Cadillac XT42026 Cadillac XT52026 Cadillac XT62026 Chevrolet Blazer2026 Chevrolet BrightDrop2026 Chevrolet Colorado+ 984 moreAssociated Documents - May 15, 2025•Document ID: 11024485Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 23-NA-153
- Date Added:
- October 25, 2025
- Manufacturer:
- CHEVROLET
SummaryThe service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay.
Associated Products (622)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Express2025 Chevrolet Malibu2025 Chevrolet Silverado+ 602 moreAssociated Documents - March 28, 2025•Document ID: 11017252Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- 23-NA-001
- Date Added:
- April 28, 2025
- Manufacturer:
- CHEVROLET
SummaryThis 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 moreAssociated Documents - February 20, 2025•Document ID: 11014455Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIP5358D
- Date Added:
- February 25, 2025
- Manufacturer:
- CADILLAC
SummaryThis 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 moreAssociated Documents - December 18, 2024•Document ID: 11012907Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 03-06-01-023I
- Date Added:
- January 17, 2025
- Manufacturer:
- CHEVROLET
SummaryThis 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 moreAssociated Documents - December 7, 2024•Document ID: 11011782Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5074Q
- Date Added:
- December 12, 2024
- Manufacturer:
- BUICK
SummaryThis Preliminary Information communication provides information to the technician about the use of J-35616-64B terminal test probe, replacement terminals, and terminated leads. The J-35616-64B is the latest test probe released for checking tension or probing the .64 series terminals. The test probe terminal has been released in the terminal repair kit (J-38125-620H) located in Lear Tray 7 part number 963716-2. There are 5 terminated leads in a package part number is 13505346, which can be ordered through your normal General Motors Customer Care and Aftersales parts channel.
Associated Products (675)2022 Buick Enclave2022 Buick Encore2022 Buick Envision2022 Cadillac CT42022 Cadillac CT52022 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 Trailblazer2022 Chevrolet Traverse+ 655 moreAssociated Documents - December 6, 2024•Document ID: 11011805Service Bulletin/Repair InstructionsELECTRICAL SYSTEM; UNKNOWN OR OTHER
- Mfr Comm. #:
- PIT5962B
- Date Added:
- December 12, 2024
- Manufacturer:
- CADILLAC
SummaryThis Preliminary information communicates a GM part number for reflective high temperature heat or insulating tape when repairing wiring harnesses.
Associated Products (691)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 671 moreAssociated Documents - October 28, 2024•Document ID: 11011205Service Bulletin/Repair InstructionsSTEERING; POWER TRAIN; ENGINE
- Mfr Comm. #:
- 04-06-01-029K
- Date Added:
- December 4, 2024
- Manufacturer:
- CHEVROLET
SummaryThis informational bulletin explains Unscheduled Supplemental Services and the importance of GM Simplified Maintenance Schedules.
Associated Products (632)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe+ 612 moreAssociated Documents - October 25, 2024•Document ID: 11009156Service Bulletin/Repair InstructionsELECTRICAL SYSTEM
- Mfr Comm. #:
- PIP4723J
- Date Added:
- October 25, 2024
- Manufacturer:
- GMC
SummaryThis 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 moreAssociated Documents - October 9, 2024•Document ID: 11010545Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 10-00-89-009F
- Date Added:
- November 14, 2024
- Manufacturer:
- CHEVROLET
SummaryThis service bulletin provides information on key code security rules and information on GM keycode look-up applications (U.S).
Associated Products (663)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado+ 643 moreAssociated Documents - October 7, 2024•Document ID: 11010544Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 03-06-01-023H
- Date Added:
- November 14, 2024
- Manufacturer:
- CHEVROLET
SummaryThis 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 moreAssociated Documents - October 5, 2024•Document ID: 11010490Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 01-06-01-011Q
- Date Added:
- November 13, 2024
- Manufacturer:
- CHEVROLET
SummaryThis service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
Associated Products (594)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe+ 574 moreAssociated Documents - October 2, 2024•Document ID: 11010491Service Bulletin/Repair InstructionsUNKNOWN OR OTHER
- Mfr Comm. #:
- 07-00-89-037T
- Date Added:
- November 13, 2024
- Manufacturer:
- GMC
SummaryThis warranty administration bulletin provides policy information for GM courtesy transportation and roadside assistance programs.
Associated Products (666)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac Escalade IQ2025 Cadillac Lyriq2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet BrightDrop2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Malibu+ 646 moreAssociated Documents - September 27, 2024•Document ID: 11009532Service Bulletin/Repair InstructionsENGINE
- Mfr Comm. #:
- 04-06-04-051J
- Date Added:
- October 31, 2024
- Manufacturer:
- CADILLAC
SummaryThis service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
Associated Products (631)2025 Buick Enclave2025 Buick Encore2025 Buick Encore GX2025 Buick Envision2025 Buick Envista2025 Cadillac CT42025 Cadillac CT52025 Cadillac Escalade2025 Cadillac Escalade ESV2025 Cadillac XT42025 Cadillac XT52025 Cadillac XT62025 Chevrolet Blazer2025 Chevrolet Colorado2025 Chevrolet Corvette2025 Chevrolet Equinox2025 Chevrolet Silverado2025 Chevrolet Suburban2025 Chevrolet Tahoe2025 Chevrolet Trailblazer+ 611 moreAssociated Documents