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
| 17-NA-239 | 2023-11-02. Service bulletin. SERVICE BRAKES, HYDRAULIC. This bulletin provides information on possible normal brake drag caused by the vehicle parked for an extended period of time. |
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| N222371151-11 | 2023-11-01. Service bulletin. STEERING. Customer Satisfaction Program. Final VINs Released Message. |
| 13-03-10-001K | 2023-10-29. Service bulletin. EQUIPMENT; WHEELS. This service bulletin provides information on summer tire performance and tire cold weather cracking. |
| 05-00-89-029F | 2023-10-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information on General Motors Dealership Critical Equipment Requirements and Recommendations. |
| 99-00-89-019Y | 2023-10-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration bulletin provides information on the Global Warranty Management (GWM) Warranty Parts Center (WPC) Parts Return Program. |
| 23-NA-172 | 2023-10-25. Service bulletin. POWER TRAIN. this service bulletin advises the technician to replace the transmission and not overhaul it to correct a customer concern of Manual Transmission Pops/Jumps Out of Third Gear After Shifting and During Acceleration. |
| 22-NA-038 | 2023-10-25. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This warranty bulletin provides information on Customer Concern Not Duplicated (CCND) Labor Operation Numbers. |
| 17-NA-170 | 2023-10-25. Service bulletin. WHEELS. This service bulletin provides information about the Hunter wheel Road Force balancers that should be utilized for all repairs requiring balance and Road Force measurement. |
| 01-06-01-011O | 2023-10-25. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption. |
| 20-NA-159 | 2023-10-18. Service bulletin. TIRES; WHEELS. This Warranty Administration bulletin is for information on General Motors New Vehicle Tire Warranty Program (U.S. Dealers Only). |
| 10-00-89-006J | 2023-10-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This service bulletin provides information for dealers on how to submit a product information report (PIR) (Canada Only). |
| 02-00-89-002W | 2023-10-18. 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. and Canada Dealers Only). |
| 23-NA-172 | 2023-10-17. Service bulletin. POWER TRAIN. this service bulletin advises the technician to replace the transmission and not overhaul it to correct a customer concern of Manual Transmission Pops/Jumps Out of Third Gear After Shifting and During Acceleration. |
| 23-NA-154 | 2023-10-16. Service bulletin. EQUIPMENT. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
| 21-NA-279 | 2023-10-14. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin provides a procedure to replace the starter if found the cause of the rattle noise. |
| N222375790-08 | 2023-10-10. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SOFTWARE; ELECTRICAL SYSTEM:ADAS:PARKING ASSIST:SENSORS. Customer Satisfaction Program - Due to the industry-wide semiconductor shortage, the park assist feature is not functional on certain 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-154 | 2023-10-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This bulletin provides information on Warranty Administration – Required Operating Procedures - 8 Points (U.S. Only). |
| 17-NA-157 | 2023-09-26. Service bulletin. ENGINE AND ENGINE COOLING. This service bulletin explains the difference in oil filters for gas engines with new oil pump control systems and the possibilities of what may happen using the incorrect filter. |
| 23-NA-153 | 2023-09-26. Service bulletin. ENGINE AND ENGINE COOLING; POWER TRAIN. The service bulletin advises the tech of a normal transmission shift condition and the delay in throttle response when the throttle plate is opened rapidly and advises the customer that it is normal for the delay. |
| 18-NA-306 | 2023-09-26. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Warranty Administration service bulletin provides information for dealers/Service advisors on when and how to submit a Pre-Repair Authorization (PRA). |
| N222371151-11 | 2023-09-20. Service bulletin. STEERING. Customer Satisfaction Program. Opened more VINs for repair. |
| PIT5832J | 2023-09-18. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. This Preliminary information communicates a diagnostic tip on how to resolve a issue if the serial data authentication configuration did not complete correctly. |
| PIT5985B | 2023-09-18. Service bulletin. POWER TRAIN. This Preliminary information communicates diagnostic tips on how to resolve a issues with vehicles that will not power up after a can bus 2 issue, lightning strike, or a failed over the air update. |
| PIP5621D | 2023-09-18. Service bulletin. POWER TRAIN. This Preliminary information communicates to the dealer technician that TAC recommends the utilization of the GDS2 software to aid in diagnosing automatic transmission concerns. TAC is requesting the GDS2 session logs be sent in before the dealer contacts TAC. |
| PIT6050 | 2023-09-18. Service bulletin. ELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC). This Preliminary information communicates to dealership technicians that if they receive a radio with the 2 stickers as noted above, the radio was remanufactured with missing components and will need to order another radio unit from the ESC to properly repair the vehicle at this time. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.