Buick Enclave 2023–2026 — technical service bulletin
Bulletin PIT6521 · NHTSA communication 11033988 · issued Jun 9, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2023–2026
model years
11
vehicle entries
Official summary
This PI advises dealers that if DTC P0606 and/or P0607 are set in the K160 EBCM, additional diagnostic aids should be followed to ensure the module requires replacement
Vehicles covered
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.