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Technical Service Bulletins of the 2024 GMC Hummer Ev

There have been 31 technical service bulletins issued for the 2024 GMC Hummer Ev.

1 2024 GMC Hummer Ev equipment TSB (Bulletin 23-NA-016)

Bulletin Date: Apr. 30, 2024
Component: Equipment.
Bulletin Summary: This informational bulletin provides information on information on available low gloss matte paint finishes.
Vehicles covered in this TSB:
2024 GMC Hummer Ev, 2025 GMC Hummer Ev.

2 2024 GMC Hummer Ev structure TSB (Bulletin 22-NA-039)

Bulletin Date: Apr. 26, 2024
Component: Structure.
Bulletin Summary: This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during pdi.
Vehicles covered in this TSB:
2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2025 GMC Hummer Ev.

3 2024 GMC Hummer Ev equipment TSB (Bulletin 22-NA-039)

Bulletin Date: Apr. 26, 2024
Component: Equipment.
Bulletin Summary: This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during pdi.
Vehicles covered in this TSB:
2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2025 GMC Hummer Ev.

4 2024 GMC Hummer Ev structure TSB (Bulletin 22-NA-039)

Bulletin Date: Apr. 26, 2024
Component: Structure.
Bulletin Summary: This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during pdi.
Vehicles covered in this TSB:
2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2025 GMC Hummer Ev.

5 2024 GMC Hummer Ev equipment TSB (Bulletin 22-NA-039)

Bulletin Date: Apr. 26, 2024
Component: Equipment.
Bulletin Summary: This informational bulletin provides information for dealers/technicians on front license plate adapter bracket installation during pdi.
Vehicles covered in this TSB:
2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2025 GMC Hummer Ev.

6 2024 GMC Hummer Ev electrical system:software TSB (Bulletin PIT6055B)

Bulletin Date: Feb. 29, 2024
Component: Electrical system:software.
Bulletin Summary: This preliminary information communicates to the field on how to clear the service drivers assist message with new software that is now available.
Vehicles covered in this TSB:
2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev.

7 2024 GMC Hummer Ev electrical system TSB (Bulletin PIT6044G)

Bulletin Date: Feb. 27, 2024
Component: Electrical system.
Bulletin Summary: This preliminary information communicates that a software update is in the works and to disconnect the 12 volt battery to clear the codes.
Vehicles covered in this TSB:
2023 Brightdrop Zevo 600, 2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2023 Cadillac Lyriq Ev, 2024 Cadillac Lyriq Ev, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev.

8 2024 GMC Hummer Ev forward collision avoidance TSB (Bulletin PIT5551N)

Bulletin Date: Feb. 21, 2024
Component: Forward collision avoidance.
Bulletin Summary: This preliminary information communicates a "forward collision system reduced" message displayed on the dic when the forward automatic braking has been set to the "alert" setting. This is normal when the fab has been set to "alert".
Vehicles covered in this TSB:
2018 Buick Enclave, 2019 Buick Enclave, 2020 Buick Enclave, 2021 Buick Enclave, 2022 Buick Enclave, 2023 Buick Enclave, 2024 Buick Enclave, 2024 Buick Envista, 2013 Cadillac ATS, 2014 Cadillac ATS, 2015 Cadillac ATS, 2016 Cadillac ATS, 2017 Cadillac ATS, 2018 Cadillac ATS, 2019 Cadillac ATS, 2016 Cadillac CT6, 2017 Cadillac CT6, 2018 Cadillac CT6, 2019 Cadillac CT6, 2020 Cadillac CT6, 2014 Cadillac CTS, 2015 Cadillac CTS, 2016 Cadillac CTS, 2017 Cadillac CTS, 2018 Cadillac CTS, 2019 Cadillac CTS, 2024 Cadillac Escalade, 2016 Cadillac Escalade Esv, 2017 Cadillac Escalade Esv, 2018 Cadillac Escalade Esv, 2019 Cadillac Escalade Esv, 2020 Cadillac Escalade Esv, 2021 Cadillac Escalade Esv, 2022 Cadillac Escalade Esv, 2023 Cadillac Escalade Esv, 2019 Cadillac XT4, 2020 Cadillac XT4, 2021 Cadillac XT4, 2022 Cadillac XT4, 2023 Cadillac XT4, 2024 Cadillac XT4, 2017 Cadillac XT5, 2018 Cadillac XT5, 2019 Cadillac XT5, 2020 Cadillac XT5, 2021 Cadillac XT5, 2022 Cadillac XT5, 2023 Cadillac XT5, 2024 Cadillac XT5, 2020 Cadillac XT6, 2021 Cadillac XT6, 2022 Cadillac XT6, 2023 Cadillac XT6, 2024 Cadillac XT6, 2018 Cadillac XTS, 2019 Cadillac XTS, 2019 Chevrolet Blazer, 2020 Chevrolet Blazer, 2021 Chevrolet Blazer, 2022 Chevrolet Blazer, 2023 Chevrolet Blazer, 2024 Chevrolet Blazer, 2017 Chevrolet Bolt Ev, 2018 Chevrolet Bolt Ev, 2019 Chevrolet Bolt Ev, 2020 Chevrolet Bolt Ev, 2021 Chevrolet Bolt Ev, 2022 Chevrolet Bolt Ev, 2023 Chevrolet Bolt Ev, 2015 Chevrolet Colorado, 2016 Chevrolet Colorado, 2017 Chevrolet Colorado, 2018 Chevrolet Colorado, 2019 Chevrolet Colorado, 2020 Chevrolet Colorado, 2021 Chevrolet Colorado, 2022 Chevrolet Colorado, 2023 Chevrolet Colorado, 2024 Chevrolet Colorado, 2018 Chevrolet Equinox, 2019 Chevrolet Equinox, 2020 Chevrolet Equinox, 2021 Chevrolet Equinox, 2022 Chevrolet Equinox, 2023 Chevrolet Equinox, 2024 Chevrolet Equinox, 2016 Chevrolet Malibu, 2017 Chevrolet Malibu, 2018 Chevrolet Malibu, 2019 Chevrolet Malibu, 2020 Chevrolet Malibu, 2021 Chevrolet Malibu, 2022 Chevrolet Malibu, 2023 Chevrolet Malibu, 2024 Chevrolet Malibu, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2019 Chevrolet Silverado 1500, 2020 Chevrolet Silverado 1500, 2021 Chevrolet Silverado 1500, 2022 Chevrolet Silverado 1500, 2023 Chevrolet Silverado 1500, 2024 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 2500, 2018 Chevrolet Silverado 2500, 2019 Chevrolet Silverado 2500, 2020 Chevrolet Silverado 2500, 2021 Chevrolet Silverado 2500, 2022 Chevrolet Silverado 2500, 2023 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 2500, 2017 Chevrolet Silverado 3500, 2018 Chevrolet Silverado 3500, 2019 Chevrolet Silverado 3500, 2020 Chevrolet Silverado 3500, 2021 Chevrolet Silverado 3500, 2022 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 3500, 2024 Chevrolet Silverado 3500, 2024 Chevrolet Silverado Ev, 2018 Chevrolet Silverado Lt, 2017 Chevrolet Suburban, 2018 Chevrolet Suburban, 2019 Chevrolet Suburban, 2020 Chevrolet Suburban, 2021 Chevrolet Suburban, 2022 Chevrolet Suburban, 2023 Chevrolet Suburban, 2024 Chevrolet Suburban, 2017 Chevrolet Tahoe, 2018 Chevrolet Tahoe, 2019 Chevrolet Tahoe, 2020 Chevrolet Tahoe, 2021 Chevrolet Tahoe, 2022 Chevrolet Tahoe, 2023 Chevrolet Tahoe, 2024 Chevrolet Tahoe, 2018 Chevrolet Traverse, 2019 Chevrolet Traverse, 2020 Chevrolet Traverse, 2021 Chevrolet Traverse, 2022 Chevrolet Traverse, 2023 Chevrolet Traverse, 2024 Chevrolet Traverse, 2024 Chevrolet Trax, 2016 Chevrolet Volt, 2017 Chevrolet Volt, 2018 Chevrolet Volt, 2019 Chevrolet Volt, 2017 GMC Acadia, 2018 GMC Acadia, 2019 GMC Acadia, 2020 GMC Acadia, 2021 GMC Acadia, 2022 GMC Acadia, 2023 GMC Acadia, 2024 GMC Acadia, 2015 GMC Canyon, 2016 GMC Canyon, 2017 GMC Canyon, 2018 GMC Canyon, 2019 GMC Canyon, 2020 GMC Canyon, 2021 GMC Canyon, 2022 GMC Canyon, 2023 GMC Canyon, 2024 GMC Canyon, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2017 GMC Sierra 1500, 2018 GMC Sierra 1500, 2019 GMC Sierra 1500, 2020 GMC Sierra 1500, 2021 GMC Sierra 1500, 2022 GMC Sierra 1500, 2023 GMC Sierra 1500, 2024 GMC Sierra 1500, 2017 GMC Sierra 2500, 2018 GMC Sierra 2500, 2019 GMC Sierra 2500, 2020 GMC Sierra 2500, 2021 GMC Sierra 2500, 2022 GMC Sierra 2500, 2023 GMC Sierra 2500, 2024 GMC Sierra 2500, 2017 GMC Sierra 3500, 2018 GMC Sierra 3500, 2019 GMC Sierra 3500, 2020 GMC Sierra 3500, 2021 GMC Sierra 3500, 2022 GMC Sierra 3500, 2023 GMC Sierra 3500, 2024 GMC Sierra 3500, 2018 GMC Terrain, 2019 GMC Terrain, 2020 GMC Terrain, 2021 GMC Terrain, 2022 GMC Terrain, 2023 GMC Terrain, 2024 GMC Terrain, 2024 GMC Yukon, 2017 GMC Yukon Denali, 2018 GMC Yukon Denali, 2019 GMC Yukon Denali, 2020 GMC Yukon Xl, 2021 GMC Yukon Xl, 2022 GMC Yukon Xl, 2023 GMC Yukon Xl.
 

9 2024 GMC Hummer Ev electrical system TSB (Bulletin PIT6065D)

Bulletin Date: Feb. 20, 2024
Component: Electrical system.
Bulletin Summary: This preliminary information communicates to technicians to perform the programming to the vehicles module to correct customer concerns.
Vehicles covered in this TSB:
2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev.

10 2024 GMC Hummer Ev electrical system TSB (Bulletin 18-NA-180)

Bulletin Date: Feb. 16, 2024
Component: Electrical system.
Bulletin Summary: This warranty administration service bulletin provides lithium-ion battery exchange process and transaction submission information.
Vehicles covered in this TSB:
2022 Brightdrop EV600, 2023 Brightdrop Zevo 600, 2012 Buick Lacrosse, 2013 Buick Lacrosse, 2014 Buick Lacrosse, 2015 Buick Lacrosse, 2016 Buick Lacrosse, 2018 Buick Lacrosse, 2019 Buick Lacrosse, 2012 Buick Regal, 2013 Buick Regal, 2014 Buick Regal, 2015 Buick Regal, 2016 Buick Regal, 2017 Buick Regal, 2017 Cadillac CT6, 2018 Cadillac CT6, 2014 Cadillac ELR, 2015 Cadillac ELR, 2016 Cadillac ELR, 2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2024 Chevrolet Blazer Ev, 2022 Chevrolet Bolt Euv, 2023 Chevrolet Bolt Euv, 2017 Chevrolet Bolt Ev, 2018 Chevrolet Bolt Ev, 2019 Chevrolet Bolt Ev, 2020 Chevrolet Bolt Ev, 2021 Chevrolet Bolt Ev, 2022 Chevrolet Bolt Ev, 2023 Chevrolet Bolt Ev, 2014 Chevrolet Impala, 2013 Chevrolet Malibu Eco, 2014 Chevrolet Malibu Eco, 2016 Chevrolet Malibu Hybrid, 2017 Chevrolet Malibu Hybrid, 2018 Chevrolet Malibu Hybrid, 2019 Chevrolet Malibu Hybrid, 2016 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2024 Chevrolet Silverado Ev, 2014 Chevrolet Spark Ev, 2015 Chevrolet Spark Ev, 2016 Chevrolet Spark Ev, 2011 Chevrolet Volt, 2012 Chevrolet Volt, 2013 Chevrolet Volt, 2014 Chevrolet Volt, 2015 Chevrolet Volt, 2016 Chevrolet Volt, 2017 Chevrolet Volt, 2018 Chevrolet Volt, 2019 Chevrolet Volt, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2016 GMC Sierra 1500, 2017 GMC Sierra 1500, 2018 GMC Sierra 1500.

11 2024 GMC Hummer Ev equipment TSB (Bulletin 18-NA-180)

Bulletin Date: Feb. 16, 2024
Component: Equipment.
Bulletin Summary: This warranty administration service bulletin provides lithium-ion battery exchange process and transaction submission information.
Vehicles covered in this TSB:
2022 Brightdrop EV600, 2023 Brightdrop Zevo 600, 2012 Buick Lacrosse, 2013 Buick Lacrosse, 2014 Buick Lacrosse, 2015 Buick Lacrosse, 2016 Buick Lacrosse, 2018 Buick Lacrosse, 2019 Buick Lacrosse, 2012 Buick Regal, 2013 Buick Regal, 2014 Buick Regal, 2015 Buick Regal, 2016 Buick Regal, 2017 Buick Regal, 2017 Cadillac CT6, 2018 Cadillac CT6, 2014 Cadillac ELR, 2015 Cadillac ELR, 2016 Cadillac ELR, 2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2024 Chevrolet Blazer Ev, 2022 Chevrolet Bolt Euv, 2023 Chevrolet Bolt Euv, 2017 Chevrolet Bolt Ev, 2018 Chevrolet Bolt Ev, 2019 Chevrolet Bolt Ev, 2020 Chevrolet Bolt Ev, 2021 Chevrolet Bolt Ev, 2022 Chevrolet Bolt Ev, 2023 Chevrolet Bolt Ev, 2014 Chevrolet Impala, 2013 Chevrolet Malibu Eco, 2014 Chevrolet Malibu Eco, 2016 Chevrolet Malibu Hybrid, 2017 Chevrolet Malibu Hybrid, 2018 Chevrolet Malibu Hybrid, 2019 Chevrolet Malibu Hybrid, 2016 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2024 Chevrolet Silverado Ev, 2014 Chevrolet Spark Ev, 2015 Chevrolet Spark Ev, 2016 Chevrolet Spark Ev, 2011 Chevrolet Volt, 2012 Chevrolet Volt, 2013 Chevrolet Volt, 2014 Chevrolet Volt, 2015 Chevrolet Volt, 2016 Chevrolet Volt, 2017 Chevrolet Volt, 2018 Chevrolet Volt, 2019 Chevrolet Volt, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2016 GMC Sierra 1500, 2017 GMC Sierra 1500, 2018 GMC Sierra 1500.

12 2024 GMC Hummer Ev electrical system TSB (Bulletin 18-NA-180)

Bulletin Date: Feb. 16, 2024
Component: Electrical system.
Bulletin Summary: This warranty administration service bulletin provides lithium-ion battery exchange process and transaction submission information.
Vehicles covered in this TSB:
2022 Brightdrop EV600, 2023 Brightdrop Zevo 600, 2012 Buick Lacrosse, 2013 Buick Lacrosse, 2014 Buick Lacrosse, 2015 Buick Lacrosse, 2016 Buick Lacrosse, 2018 Buick Lacrosse, 2019 Buick Lacrosse, 2012 Buick Regal, 2013 Buick Regal, 2014 Buick Regal, 2015 Buick Regal, 2016 Buick Regal, 2017 Buick Regal, 2017 Cadillac CT6, 2018 Cadillac CT6, 2014 Cadillac ELR, 2015 Cadillac ELR, 2016 Cadillac ELR, 2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2024 Chevrolet Blazer Ev, 2022 Chevrolet Bolt Euv, 2023 Chevrolet Bolt Euv, 2017 Chevrolet Bolt Ev, 2018 Chevrolet Bolt Ev, 2019 Chevrolet Bolt Ev, 2020 Chevrolet Bolt Ev, 2021 Chevrolet Bolt Ev, 2022 Chevrolet Bolt Ev, 2023 Chevrolet Bolt Ev, 2014 Chevrolet Impala, 2013 Chevrolet Malibu Eco, 2014 Chevrolet Malibu Eco, 2016 Chevrolet Malibu Hybrid, 2017 Chevrolet Malibu Hybrid, 2018 Chevrolet Malibu Hybrid, 2019 Chevrolet Malibu Hybrid, 2016 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2024 Chevrolet Silverado Ev, 2014 Chevrolet Spark Ev, 2015 Chevrolet Spark Ev, 2016 Chevrolet Spark Ev, 2011 Chevrolet Volt, 2012 Chevrolet Volt, 2013 Chevrolet Volt, 2014 Chevrolet Volt, 2015 Chevrolet Volt, 2016 Chevrolet Volt, 2017 Chevrolet Volt, 2018 Chevrolet Volt, 2019 Chevrolet Volt, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2016 GMC Sierra 1500, 2017 GMC Sierra 1500, 2018 GMC Sierra 1500.

13 2024 GMC Hummer Ev equipment TSB (Bulletin 18-NA-180)

Bulletin Date: Feb. 16, 2024
Component: Equipment.
Bulletin Summary: This warranty administration service bulletin provides lithium-ion battery exchange process and transaction submission information.
Vehicles covered in this TSB:
2022 Brightdrop EV600, 2023 Brightdrop Zevo 600, 2012 Buick Lacrosse, 2013 Buick Lacrosse, 2014 Buick Lacrosse, 2015 Buick Lacrosse, 2016 Buick Lacrosse, 2018 Buick Lacrosse, 2019 Buick Lacrosse, 2012 Buick Regal, 2013 Buick Regal, 2014 Buick Regal, 2015 Buick Regal, 2016 Buick Regal, 2017 Buick Regal, 2017 Cadillac CT6, 2018 Cadillac CT6, 2014 Cadillac ELR, 2015 Cadillac ELR, 2016 Cadillac ELR, 2023 Cadillac Lyriq, 2024 Cadillac Lyriq, 2024 Chevrolet Blazer Ev, 2022 Chevrolet Bolt Euv, 2023 Chevrolet Bolt Euv, 2017 Chevrolet Bolt Ev, 2018 Chevrolet Bolt Ev, 2019 Chevrolet Bolt Ev, 2020 Chevrolet Bolt Ev, 2021 Chevrolet Bolt Ev, 2022 Chevrolet Bolt Ev, 2023 Chevrolet Bolt Ev, 2014 Chevrolet Impala, 2013 Chevrolet Malibu Eco, 2014 Chevrolet Malibu Eco, 2016 Chevrolet Malibu Hybrid, 2017 Chevrolet Malibu Hybrid, 2018 Chevrolet Malibu Hybrid, 2019 Chevrolet Malibu Hybrid, 2016 Chevrolet Silverado 1500, 2017 Chevrolet Silverado 1500, 2018 Chevrolet Silverado 1500, 2024 Chevrolet Silverado Ev, 2014 Chevrolet Spark Ev, 2015 Chevrolet Spark Ev, 2016 Chevrolet Spark Ev, 2011 Chevrolet Volt, 2012 Chevrolet Volt, 2013 Chevrolet Volt, 2014 Chevrolet Volt, 2015 Chevrolet Volt, 2016 Chevrolet Volt, 2017 Chevrolet Volt, 2018 Chevrolet Volt, 2019 Chevrolet Volt, 2022 GMC Hummer Ev, 2023 GMC Hummer Ev, 2024 GMC Hummer Ev, 2016 GMC Sierra 1500, 2017 GMC Sierra 1500, 2018 GMC Sierra 1500.

14 2024 GMC Hummer Ev service brakes, hydraulic TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Service brakes, hydraulic.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

15 2024 GMC Hummer Ev electrical system TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Electrical system.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

16 2024 GMC Hummer Ev equipment TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Equipment.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

17 2024 GMC Hummer Ev integrated trailer brake control TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Integrated trailer brake control.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

18 2024 GMC Hummer Ev service brakes, hydraulic TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Service brakes, hydraulic.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

19 2024 GMC Hummer Ev electrical system TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Electrical system.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.

20 2024 GMC Hummer Ev equipment TSB (Bulletin 23-NA-149)

Bulletin Date: Feb. 15, 2024
Component: Equipment.
Bulletin Summary: This technical bulletin provides a procedure to correct the condition of trailer brake disabled and/or dtc c1114 stored during pulling a trailer with a battery, generator or solar charger.
Vehicles covered in this TSB:
2023 Cadillac Escalade, 2023 Cadillac Escalade Esv, 2023 Chevrolet Colorado, 2024 Chevrolet Silverado 2500, 2024 Chevrolet Silverado 3500, 2023 Chevrolet Silverado 4500hd, 2023 Chevrolet Silverado 5500hd, 2024 Chevrolet Silverado Ev, 2023 Chevrolet Suburban, 2023 Chevrolet Suburban 1500, 2023 Chevrolet Tahoe, 2023 GMC Canyon, 2024 GMC Hummer Ev, 2024 GMC Sierra 2500, 2024 GMC Sierra 3500, 2023 GMC Yukon, 2023 GMC Yukon Xl, 2023 GMC Yukon Xl 1500.


Also see GMC vehicle common problems.




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