Cadillac Vistiq 2026 — technical service bulletin
Bulletin 654.01 · NHTSA communication 11025913 · issued Nov 6, 2025
Technical service bulletin
communication type
Unknown / Other
component
2026
model years
1
vehicle entries
Official summary
Fixes to help prevent loss of functionality for OnStar, infotainment apps, and connectivity features. 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.
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.