Buick Enclave 2024–2025 — technical service bulletin
Bulletin 662.11 · NHTSA communication 11035427 · issued Jul 14, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2024–2025
model years
6
vehicle entries
Official summary
• Fixes to help ensure proper functionality for shifting. • Fixes to help protect transmission health. • Improvements to diagnostics to prevent vehicle not starting. • Fixes to help reduce instances of check engine light activation in cold weather.
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.