Service bulletins for the 2025 Cadillac Optiq
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.
299 on file from NHTSA, as of 2026-10-19.
About P1C01 on the 2025 Cadillac Optiq: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P1C01 are shown. Show all
| PIC6609 | 2025-06-04. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates to the dealer a possible location for an engine harness chafe that may cause a Service High Voltage system with charge limited to 26% message with DTC P1C01 or U016B. |
|---|---|
| 25-NA-067 | 2025-04-24. Service bulletin. ELECTRICAL SYSTEM; FUEL/PROPULSION SYSTEM. Some customers may comment on Service High Voltage Warning Message and vehicle in setting P1C01. |
| PIT6319A | 2025-02-03. Service bulletin. UNKNOWN OR OTHER. This Preliminary information communicates that a customer may experience a service high voltage message with a loss of heat. The technician may find P1C01 in history. The technician is advised that updated software will be released in the future. The dealer should advise the customer to cycle the ignition on and off to temporarily resolve the concern. |
| PIT6319 | 2025-01-20. Service bulletin. FUEL/PROPULSION SYSTEM. This Preliminary information communicates that a customer may experience a service high voltage message with a loss of heat. The technician may find P1C01 in history. The technician is advised that updated software will be released in the future. The dealer should advise the customer to cycle the ignition on and off to temporarily resolve the concern. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.