SB-81
Service Bulletin/Repair Instructions
On certain 2026 & 2026 Allegro Bus, 45 BP floorplan only, a small opening may be in the driver's side wheel well area that needs to be covered and sealed.
Vehicle report
Technical service bulletins are instructions a manufacturer sent its dealers about a known fault. They are not recalls and the work is usually not free, but they are the clearest signal of a problem the manufacturer already knows about.
SB-81
On certain 2026 & 2026 Allegro Bus, 45 BP floorplan only, a small opening may be in the driver's side wheel well area that needs to be covered and sealed.
SB-79
Tiffin issued a technical service bulletin to remove a reverse signal that automatically triggers the docking lights to illuminate which is overloading and causing a false fault on the FCCC instrument cluster.
Complaint counts are reports filed with NHTSA, not failure rates. A common model collects more of them than a rare one that breaks more often.