Cadillac CT4 Technical Service Bulletins

Technical Service Bulletins of Cadillac CT4 Model Years

Cadillac Model Number of Bulletins
  2024 CT4
21
  2023 CT4
42
  2022 CT4
93
  2021 CT4
110
  2020 CT4
155

Latest Technical Service Bulletins of Cadillac CT4

2024 Cadillac CT4 steering TSB (Bulletin N242440670)

Bulletin Date: Apr. 29, 2024
Component: Steering
Bulletin Summary: Service update - certain vehicles may have a condition in which the tie rod jam nut may be below torque specification. Dealers will perform a front wheel toe set alignment and tighten both jam nuts to spec.
Vehicles covered in this TSB:
2024 Cadillac CT4, 2024 Cadillac CT5.

2020 Cadillac CT4 power train TSB (Bulletin PIP5968)

Bulletin Date: Feb. 27, 2024
Component: Power train
Bulletin Summary: This preliminary information communicates to have the dealer contact tac with the transmission tun number prior to transmission installation.
Vehicles covered in this TSB:
2016 Cadillac ATS, 2017 Cadillac ATS, 2018 Cadillac ATS, 2019 Cadillac ATS, 2020 Cadillac CT4, 2021 Cadillac CT4, 2022 Cadillac CT4, 2023 Cadillac CT4, 2024 Cadillac CT4, 2016 Cadillac CT6, 2017 Cadillac CT6, 2018 Cadillac CT6, 2016 Cadillac CTS, 2017 Cadillac CTS, 2018 Cadillac CTS, 2019 Cadillac CTS, 2015 Cadillac Escalade, 2016 Cadillac Escalade, 2017 Cadillac Escalade, 2018 Cadillac Escalade, 2019 Cadillac Escalade, 2020 Cadillac Escalade, 2016 Chevrolet Camaro, 2017 Chevrolet Camaro, 2018 Chevrolet Camaro, 2019 Chevrolet Camaro, 2020 Chevrolet Camaro, 2021 Chevrolet Camaro, 2022 Chevrolet Camaro, 2023 Chevrolet Camaro, 2017 Chevrolet Colorado, 2018 Chevrolet Colorado, 2019 Chevrolet Colorado, 2020 Chevrolet Colorado, 2021 Chevrolet Colorado, 2022 Chevrolet Colorado, 2023 Chevrolet Colorado, 2015 Chevrolet Corvette, 2016 Chevrolet Corvette, 2017 Chevrolet Corvette, 2018 Chevrolet Corvette, 2019 Chevrolet Corvette, 2017 Chevrolet Express, 2018 Chevrolet Express, 2019 Chevrolet Express, 2020 Chevrolet Express, 2021 Chevrolet Express, 2022 Chevrolet Express, 2023 Chevrolet Express 3500, 2024 Chevrolet Express 3500, 2015 Chevrolet Silverado 1500, 2016 Chevrolet Silverado 1500, 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, 2015 Chevrolet Silverado 2500, 2016 Chevrolet Silverado 2500, 2017 Chevrolet Silverado 2500, 2018 Chevrolet Silverado 2500, 2015 Chevrolet Silverado 3500, 2016 Chevrolet Silverado 3500, 2017 Chevrolet Silverado 3500, 2018 Chevrolet Silverado 3500, 2018 Chevrolet Silverado Lt, 2017 GMC Canyon, 2018 GMC Canyon, 2019 GMC Canyon, 2020 GMC Canyon, 2021 GMC Canyon, 2022 GMC Canyon, 2023 GMC Canyon, 2015 GMC Sierra 1500, 2016 GMC Sierra 1500, 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, 2015 GMC Sierra 2500, 2016 GMC Sierra 2500, 2017 GMC Sierra 2500, 2018 GMC Sierra 2500, 2015 GMC Sierra 3500, 2016 GMC Sierra 3500, 2017 GMC Sierra 3500, 2018 GMC Sierra 3500, 2015 GMC Yukon, 2016 GMC Yukon, 2017 GMC Yukon, 2018 GMC Yukon, 2019 GMC Yukon, 2020 GMC Yukon.

2020 Cadillac CT4 power train TSB (Bulletin PIP5966)

Bulletin Date: Feb. 23, 2024
Component: Power train
Bulletin Summary: This preliminary information communicates diagnostic aids for a no start or dtc's following a transmission replacement
Vehicles covered in this TSB:
2016 Cadillac ATS, 2017 Cadillac ATS, 2018 Cadillac ATS, 2019 Cadillac ATS, 2020 Cadillac CT4, 2021 Cadillac CT4, 2022 Cadillac CT4, 2023 Cadillac CT4, 2024 Cadillac CT4, 2016 Cadillac CT6, 2017 Cadillac CT6, 2018 Cadillac CT6, 2016 Cadillac CTS, 2017 Cadillac CTS, 2018 Cadillac CTS, 2019 Cadillac CTS, 2015 Cadillac Escalade, 2016 Cadillac Escalade, 2017 Cadillac Escalade, 2018 Cadillac Escalade, 2019 Cadillac Escalade, 2020 Cadillac Escalade, 2016 Chevrolet Camaro, 2017 Chevrolet Camaro, 2018 Chevrolet Camaro, 2019 Chevrolet Camaro, 2020 Chevrolet Camaro, 2021 Chevrolet Camaro, 2022 Chevrolet Camaro, 2023 Chevrolet Camaro, 2017 Chevrolet Colorado, 2018 Chevrolet Colorado, 2019 Chevrolet Colorado, 2020 Chevrolet Colorado, 2021 Chevrolet Colorado, 2022 Chevrolet Colorado, 2023 Chevrolet Colorado, 2015 Chevrolet Corvette, 2016 Chevrolet Corvette, 2017 Chevrolet Corvette, 2018 Chevrolet Corvette, 2019 Chevrolet Corvette, 2017 Chevrolet Express, 2018 Chevrolet Express, 2019 Chevrolet Express, 2020 Chevrolet Express, 2021 Chevrolet Express, 2022 Chevrolet Express, 2023 Chevrolet Express 3500, 2024 Chevrolet Express 3500, 2015 Chevrolet Silverado 1500, 2016 Chevrolet Silverado 1500, 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, 2015 Chevrolet Silverado 2500, 2016 Chevrolet Silverado 2500, 2017 Chevrolet Silverado 2500, 2018 Chevrolet Silverado 2500, 2015 Chevrolet Silverado 3500, 2016 Chevrolet Silverado 3500, 2017 Chevrolet Silverado 3500, 2018 Chevrolet Silverado 3500, 2018 Chevrolet Silverado Lt, 2017 GMC Canyon, 2018 GMC Canyon, 2019 GMC Canyon, 2020 GMC Canyon, 2021 GMC Canyon, 2022 GMC Canyon, 2023 GMC Canyon, 2015 GMC Sierra 1500, 2016 GMC Sierra 1500, 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, 2015 GMC Sierra 2500, 2016 GMC Sierra 2500, 2017 GMC Sierra 2500, 2018 GMC Sierra 2500, 2015 GMC Sierra 3500, 2016 GMC Sierra 3500, 2017 GMC Sierra 3500, 2018 GMC Sierra 3500, 2015 GMC Yukon, 2016 GMC Yukon, 2017 GMC Yukon, 2018 GMC Yukon, 2019 GMC Yukon, 2020 GMC Yukon.

Also see Common Cadillac problems