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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 / 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.