Chevrolet Silverado 1500 2025 — technical service bulletin
Bulletin N26-F163BX · NHTSA communication 11035450 · issued Jul 28, 2026
Technical service bulletin
communication type
Unknown / Other
component
2025
model years
4
vehicle entries
Official 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.
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.