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RecallGazette

Vehicle problems, recalls & safety intelligence

Buick Enclave 2021–2026technical service bulletin

Bulletin N25-250552 · NHTSA communication 11026842 · issued Dec 3, 2025

Technical service bulletin
communication type
Unknown OR Other
component
2021–2026
model years
60
vehicle entries

Official summary

Improvements to OnStar functionality. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior when an update package is onboard the vehicle. Do not service your vehicle during installation.

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.