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
| PIP5675E | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer that a customer may comment that the MIL light is illuminated. The technician may find P1098 and/or P26BB set current or history. That this may be caused by a software anomaly, and that GM is currently looking into the issue. It provides testing and related direction based on the results. |
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| PIP5696B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates that the transfer case control module is on engineering restriction to verify diagnostics and service information. |
| PIC6403B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This Preliminary information communicates to the dealer that programming modules must be done in OFF power module using MDI2 on 2020 Cadillac CT4,CT5, and Chevrolet Corvette. |
| PIC6391B | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:ELECTRIC:CONTROL MODULE. 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. |
| PIC6382C | 2020-08-10. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; ELECTRICAL SYSTEM. This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module. |
| PIC6382B | 2020-08-10. Service bulletin. FORWARD COLLISION AVOIDANCE: SENSING SYSTEM: CAMERA; EQUIPMENT:ELECTRICAL. This PI communicates a parts restriction is in effect on 2020 cadillac CT4, and CT5 Front View Camera Module. |
| PIP5257E | 2020-08-10. Service bulletin. ENGINE AND ENGINE COOLING. This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses. Also updated to include ALL HFV6 engines Gen1 and Gen2. |
| PIP5693B | 2020-08-10. Service bulletin. ENGINE. The Preliminary Information communication advises the technician that the Product Quality Center has a part restriction for the E99 Engine Control Module. The dealer technician is advised to call the GM Product Quality Center for further assistance. |
| PIE0559A | 2020-08-10. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for information from technicians/field in regards to engine oil found under their vehicle. |
| 990089019T | 2020-08-10. Service bulletin. EQUIPMENT. This warranty administration bulletin provides information on Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program Information. |
| 110089005O | 2020-08-10. Service bulletin. EQUIPMENT. This Warranty Administration bulletin provides information on Dealer Empowerment for Goodwill, Customer Enthusiasm and Policy (U.S. Only). |
| 20NA138 | 2020-08-10. 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. |
| 20NA123 | 2020-08-10. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the technicians to clear DTCs and allow the vehicle to go into sleep mode to correct the Malfunction Indicator Lamp (MIL) Illuminated and to stop DTCs setting. |
| 20NA018 | 2020-08-10. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on MDI 2 Required When Programming Vehicles with Vehicle Intelligence Platform (VIP). |
| N202294740 01 Pr | 2020-07-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. (Private Message Update) Service Update - Certain vehicles may require individual software updates to multiple modules to address various minor issues such as steering feel and data communication. Dealers are to reprogram multiple modules. |
| N202294740 01 Pr | 2020-07-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. (Private Message) Service Update - Certain vehicles may require individual software updates to multiple modules to address various minor issues such as steering feel and data communication. Dealers are to reprogram multiple modules. |
| N202294740 01 | 2020-07-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. Service Update - Certain vehicles may require individual software updates to multiple modules to address various minor issues such as steering feel and data communication. Dealers are to reprogram multiple modules. |
| N202294740 | 2020-07-20. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; STEERING. Service Update - Certain vehicles may require individual software updates to multiple modules to address various minor issues such as steering feel and data communication. Dealers are to reprogram multiple modules. |
| N202297690 | 2020-06-29. 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. |
| 070849020Q | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for the IPC odometer programming method quick reference guide. |
| 070604025M | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information on Clicking/Ticking Sound/Noise Heard During Cold Start and that this should be considered a normal characteristic. |
| 060089029T | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 060089029S | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; EQUIPMENT. This informational bulletin includes information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability. |
| 030089006R | 2020-06-22. Service bulletin. EQUIPMENT. This informational bulletin provides the dealership with how to prep a vehicle for delivery to the customer to aid in higher CSi scores. |
| 20NA114 | 2020-06-22. Service bulletin. ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on the false setting of DTC U0212. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.