Brightdrop Zevo 400 2024–2025 — service campaign
Bulletin N252502891-01 · NHTSA communication 11036308 · issued Aug 20, 2026
Service campaign
communication type
Power Train
component
2024–2025
model years
8
vehicle entries
Official summary
Certain vehicles may have a condition in which the internal differential nut was cross threaded or missing during assembly. Dealers will review the vehicles service history in IVH, and if necessary, replace the rear electric drive transmission module.
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.