GMC Sierra 1500 2025 — technical service bulletin
Bulletin PIT6443A · NHTSA communication 11027934 · issued Jan 28, 2026
Technical service bulletin
communication type
Unknown OR Other
component
2025
model years
1
vehicle entries
Official summary
This Preliminary information communicates to dealers that these programing concerns are being looked into.
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.