Cadillac Optiq 2025 — technical service bulletin
Bulletin PIC6609 · NHTSA communication 11019066 · issued May 30, 2025
Technical service bulletin
communication type
Unknown OR Other
component
2025
model years
3
vehicle entries
Official summary
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.
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.