Service bulletins for the 2022 Cadillac CT4
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.
742 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
By topic
| 23-NA-125 | 2023-07-25. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information for dealers/technicians on Over the Air (OTA) and In Market Enhancement (IME) FAQs. |
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| 23-NA-123 | 2023-07-25. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. This service bulletin provides repair information to reprogram the cooling fan to correct a customer concern of a MIL Illuminated. |
| 23-NA-055 | 2023-07-25. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides information on the EL-52800 Diagnostic & Charge Battery Station (DCBS) – FAQs. |
| PIP5843C | 2023-07-17. Service bulletin. EXTERIOR LIGHTING. This Preliminary information communicates to the dealers information related to a Malfunction Indicator Lamp (MIL) Illuminated During Cold Ambient Temperatures with DTCs P30C3 and/or P30BF P30C7 P30CB Setting. |
| PIT5966B | 2023-07-17. Service bulletin. EQUIPMENT:ELECTRICAL. This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message. |
| PIT4261J | 2023-07-17. Service bulletin. TIRES:SIDEWALL. This Preliminary Information communication provides information to the technician about vehicles with tire sidewall irregularities. This is a visual condition that will not affect durability, reliability or performance of the tires. Dealer should communicate to the customer that slight sidewall indentations are a common characteristic of radial tire construction. |
| PIE0716A | 2023-07-14. Service bulletin. ENGINE AND ENGINE COOLING. This engineering information (EI) closure ends the need for gathering further information from technicians in regard to oil leaking from the oil pan. |
| 99-08-51-001F | 2023-07-14. Service bulletin. STRUCTURE. This service bulletin provides information on Paintless Dent Repair Process. |
| 23-NA-109 | 2023-07-14. Service bulletin. ELECTRICAL SYSTEM; AIR BAGS; SEATS. This service bulletin provides a procedure to correct a customer concern of Service Restraint System and/or Airbag Readiness Message Displayed - DTCs B15DF / B15E3. |
| 23-NA-064 | 2023-07-14. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. This service bulletin provides information on the Transport Mode Feature, also known as Logistics mode, which is used to increase the 12V Battery stand time of the vehicle during transit and or long period of stand time at the dealerships. |
| 23-NA-042 | 2023-07-14. Service bulletin. BACK OVER PREVENTION:SOFTWARE; EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to update radio software to correct customer concerns of Software related issues. |
| 22-NA-053 | 2023-07-14. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING; EXTERIOR LIGHTING. This service bulletin provides information for dealers/technicians on New Labor Operations for Limited Production Option (LPO) Calibrated Accessories. |
| 13-08-116-001I | 2023-07-13. Service bulletin. ELECTRICAL SYSTEM. The intent of this service bulletin is to identify aftermarket ALDL or DLC interface devices as potential sources for causing multiple customer concerns that do not have other diagnostic methods to identify them. |
| 01-06-01-011N | 2023-07-13. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| N222375790-05 | 2023-07-11. Service bulletin. ELECTRICAL SYSTEM. Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 2022 and 2023 model year vehicles, built beginning December 2, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified, that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the park assist control module and setup the serial data gateway module to restore the Park Assist feature. Some vehicles may also need additional modules to be reprogrammed. |
| 23-NA-007 | 2023-07-11. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT:VIDEO (TOUCH)SCREEN/MONITOR/UNIT; EQUIPMENT. This service bulletin provides repair information to correct a customer concern of Black Radio Display Screen (Triangle and Camera with Slash Through it) with DTCs B1A62 82 and 86 Setting Current in Video Processing Module (VPM). |
| 22-NA-232 | 2023-07-11. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING; ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:PUMP. This informational bulletin advises the technician of a possibly noise coming from the transmission oil pump. |
| 21-NA-061 | 2023-07-11. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; ELECTRICAL SYSTEM. This service bulletin provides information for dealers on Using EL-52545 When Diagnosing PEPs Transmitter Key Fobs. |
| 16-NA-158 | 2023-06-27. Service bulletin. EQUIPMENT. This service bulletin describes the U.S. Dealer Special Tool Loan Program process. |
| 23-NA-103 | 2023-06-21. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on submitting quality Photos of Various Vehicle Concerns to the GM Technical Assistance Center (TAC). |
| 22-NA-235 | 2023-06-21. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. This service bulletin provides repair information to correct a customer concern of Wireless Charging Intermittent When Using iPhone and Samsung Phones at Offset Positions. |
| N222371151-09 | 2023-06-19. Service bulletin. STEERING. Customer Satisfaction Program. Due to the industry-wide semiconductor shortage, the heat feature on the steering wheel is not functional on certain 2022 model year vehicles listed above, built beginning November 17, 2021. The affected vehicle owners should have been made aware of the condition at sale, and notified that once parts are available, they would be eligible for a no additional cost retrofit to enable the feature. Dealers are to replace the steering wheel assembly. |
| 04-07-30-013E | 2023-06-19. Service bulletin. POWER TRAIN; ENGINE AND ENGINE COOLING. This service bulletin provides information to dealership personnel on automatic transmission shift and engine driveability concerns and/or MIL ON due to aftermarket oil bath air filter use. |
| 02-00-89-002V | 2023-06-19. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers/technicians on When and How to Submit a Field Product Report (FPR) (U.S. Dealers Only). |
| PIC5650K | 2023-06-13. Service bulletin. POWER TRAIN; ELECTRICAL SYSTEM:IGNITION. This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3060, and/or B3935. Technician should not replace any parts for this concern. If unable to duplicate the concern ask if the customer uses any Radio Frequency Identification Devices when the concern is present. Dealer should also direct their customers to the appropriate section in the Owner manuals that references that the device complies. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.