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
Only bulletins with component: Parking brake are shown. Show all
| PIP5865B | 2024-04-15. Service bulletin. PARKING BRAKE:INDICATOR LIGHT. This Preliminary information communicates the possibility of DTC P30BF failing on low mile vehicles due to the possibility of the cylinder 1/2 sliding barrel binding on intake camshaft. |
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| PIC6516 | 2023-09-18. Service bulletin. PARKING BRAKE. This Preliminary information communicates diagnostic tips for Advanced Parking Assist being inop. |
| 22-NA-051 | 2022-03-30. Service bulletin. PARKING BRAKE; EQUIPMENT; ELECTRICAL SYSTEM. This informational bulletin provides information for dealers/technicians on Changes to Park Assist and Reverse Automatic Braking for Certain 2022 Passenger Car, Crossover, SUV, and Truck Models Equipped with RPO 00Y and/or 00Z. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.