Chevrolet Colorado 2025–2026 — service campaign
Bulletin N252517790 · NHTSA communication 11024270 · issued Oct 14, 2025
Service campaign
communication type
Power Train
component
2025–2026
model years
8
vehicle entries
Official summary
Certain vehicles, equipped with 8L80 or 8L90 Transmissions, may have a condition in which the reaction carrier cracks. Dealers are to replace the reaction carrier.
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.