WenmarOpen by Wenmar Pro

Service bulletins for the 2020 Cadillac CT5

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

898 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

By topic

Only bulletins with component: Transmission and driveline are shown. Show all

Bulletins, newest first
20NA1382020-08-10. Service bulletin. POWER TRAIN. This bulletin provides information on Policies Applicable to All U.S. Dealers for Engine and Transmission Assembly Replacement Under Warranty, Policy or Customer Enthusiasm and information on Submission of Warranty Transaction in Global Warranty Management.
N2022976902020-06-29. Service bulletin. POWER TRAIN; STRUCTURE. SUB - Certain 2020 model year Cadillac CT5 vehicles equipped with all wheel drive (RPO F46) may have a transmission mount ?snubber? rotated out of position. Vehicles with the snubber out of position could experience noise and vibration. Dealers will inspect the transmission mount snubber, and, if out of position, will loosen the fastener bolt, rotate the snubber into its proper position, and retorque the bolt to specification.
20NA1072020-06-22. Service bulletin. POWER TRAIN. This informational bulletin advises the technician not to replace the prop shaft if a small amount of grease is found leaking out.
20NA0892020-05-26. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; POWER TRAIN:AUTOMATIC TRANSMISSION. This technical bulletin provides a procedure to correct a condition of Low-Frequency Noise and Vibration Sound Heard in Passenger Compartment Under Wide Open Throttle.
PIC6395A2020-04-13. Service bulletin. POWER TRAIN. This Preliminary information communicates a parts restriction is in place for the Automatic Transmission Control on 2020 Cadillac CT4, and CT5.
PIP5702A2020-04-13. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 2020 Cadillic CT5 T93 transmission control module for the 10L80 10 speed transmission is on restriction through the Product Quality Center. Dealers are advised to contact the Product Quality Center if diagnostics has lead to replacement of the transmission control module.
PIP5677C2020-03-09. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.
PIP5677B2020-03-09. Service bulletin. POWER TRAIN; EQUIPMENT. This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.
PIP57022020-02-10. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 2020 Cadillic CT5 T93 transmission control module for the 10L80 10 speed transmission is on restriction through the Product Quality Center. Dealers are advised to contact the Product Quality Center if diagnostics has lead to replacement of the transmission control module.
990420002K2019-11-25. Service bulletin. POWER TRAIN. This informational bulletin provides information on Driveline Clunk Noise and what is acceptable and what is considered normal operations.
16NA3382019-11-25. Service bulletin. POWER TRAIN. This Bulletin provides guidelines for Dealers Not Required and for Dealers Required to Contact the PQC for engine or transmission assembly replacement and explains the PQC process, GWM Transaction submission, vehicle service record retention and proper handling of assembly returns.
PIP5677A2019-11-12. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.
PIE05382019-10-28. Service bulletin. POWER TRAIN. This engineering informational bulletin is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to 8 speed transmission shift quality.
PIP56772019-10-15. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that the 10L60, 10L80 and the 10L90 transmissions have been place on a part restriction. Dealers are to contact the Product Quality Center before replacing the transmission assembly.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.