2021 Tiffin Bus problems, complaints & recalls
Safety recalls (1)
Fuel System, Diesel:fuel Injection System:fuel Rail 2021-04-30 · campaign 21V306000 · 3,198 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2017-2021 Bus and Phaeton vehicles. The sealing washer may not seat correctly in the pilot bore, allowing the high pressure fuel rail assembly to leak.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire.
Fix: Tiffin will work with Cummins to inspect the rail threads , and replace the rail and fuel lines if damage is found, free of charge. Owner notification letters were mailed August 11, 2021. Owners may contact Tiffin customer service at 1-256-356-8661.
Service bulletins (1)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Exterior Lighting 2025-06-09 · MCD-009 · Other
stopped using the lights we had been using due to expense. replaced with these, but these new lights have to be wired in instead of just clicking in. these are the instructions to wire in.
What owners report
No detailed complaint narratives on file.
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.