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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

Bulletins, newest first
PIC6391C2020-10-19. Service bulletin. SERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Electronic Brake Boost Control Module and Valve Kit, Brake Pressure Modulator.
PIC6407C2020-10-19. Service bulletin. EQUIPMENT:ELECTRICAL. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, CT5 and Chevrolet Corvette Amplifier.
PIC6387B2020-10-19. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates a parts restriction is in place for the Short Range Radar Module on 2020 Cadillac CT4, and CT5.
PIC6394B2020-10-19. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates a parts restriction is in place for the Image Processing Module on 2020 Cadillac CT4, and CT5.
PIC6404A2020-10-19. Service bulletin. ELECTRICAL SYSTEM; STEERING. This Preliminary information communicates An issue may occur causing a Service Driver Assist, Steering Assist Reduced Messages, or MIL illuminated with P25A2, U0265, and U0566, replacing the Front View Camera for frequently occurring cases and a software/hardware solution will be forthcoming for infrequently occurring cases.
PIC6382F2020-10-19. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module.
990089019U2020-10-05. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information.
20NA1592020-09-28. Service bulletin. TIRES. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only).
20NA1572020-09-28. Service bulletin. ELECTRICAL SYSTEM. This bulletin provides information on the Transport Mode On Message Being Displayed in the Driver Information Center (DIC) and/or Battery Light is Flashing and the procedures to turn the Transport Mode message ON and OFF.
18NA0992020-09-28. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
PIC6395B2020-09-14. Service bulletin. EQUIPMENT; POWER TRAIN; EQUIPMENT ADAPTIVE/MOBILITY. This Preliminary information communicates a parts restriction is in place for the Automatic Transmission Control on 2020 Cadillac CT4, and CT5.
PIP5733C2020-09-14. Service bulletin. ENGINE. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
PIP5733B2020-09-14. Service bulletin. EQUIPMENT; ENGINE. This Preliminary information communicates Possible Crank no start or extended crank with DTC p12A6 set current or history. Under Investigation
PIT5411U2020-09-14. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM. This Preliminary Information communication advises the technician that the Radio or Tuner, radio controls, Integrated Center Stack, HUD's, IPC's, and radio displays are placed on restriction through the General Motors Technical Assistance Center. Dealers will need to contact General Motors Technical Assistance Center for further assistance.
PIE05792020-09-08. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineer listed in regards to the malfunction indicator lamp (MIL) illuminated.
PIE05752020-09-08. Service bulletin. ELECTRICAL SYSTEM. This engineering information (EI) is requesting information from technicians to perform the check list provided and contact the engineers listed in regards to no fob detected message on driver information center (DIC), passive and backup inoperative and active functions working for all transmitters.
150089002B2020-09-08. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; STRUCTURE. This bulletin provides information to dealers regarding transportation damage repair claim submission requirements.
20NA0082020-08-31. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This informational bulletin provides information for dealers/technicians on No MIL illuminated, ignore these DTCs if set in History.
16NA3382020-08-31. Service bulletin. ENGINE; 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 for Canadian Dealers only.
N202294740 012020-08-10. Service bulletin. ELECTRICAL SYSTEM. Service Update - Certain vehicles may require individual software updates to multiple modules to address variousminor issues such as steering feel and data communication. Dealers are to reprogram multiple modules.
PIC6388B2020-08-10. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; LANE DEPARTURE: BLIND SPOT DETECTION. This PI communicates a parts restriction is in effect on 2020 Cadillac CT4, and CT5 Side Blind Zone Module.
PIC6382E2020-08-10. Service bulletin. BACK OVER PREVENTION. This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module.
PIC6414A2020-08-10. Service bulletin. SERVICE BRAKES, AIR:DISC:PADS; SERVICE BRAKES, AIR:DISC:ROTOR; EQUIPMENT. This Preliminary information communicates that there maybe a squeak or squeal noise caused by contact between the brake pad wear sensor and the rotor.
PIC6382D2020-08-10. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA. This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module.
PIP5095G2020-08-10. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.

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