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October 23, 2026 Over-the-air update

This update contains a required software change to help improve the overall software update and...

GMC technical service bulletin Gateway 2026.3 for 2025 GMC Acadia, 2025 Chevrolet Traverse and 2025 Buick Enclave.

Bulletin number
Gateway 2026.3 (Gateway 2026.3)
Component
Unknown or other
Summary
This update contains a required software change to help improve the overall software update and diagnostics process. Be sure to install this update to be able to receive future software updates. During the update process, your radio may stay on up to 5 minutes after you exit the vehicle. This is expected behavior.

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