2020 Tiffin Bus problems, complaints & recalls
Most-reported problem areas: Engine (1)
Safety recalls (3)
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.
Steering 2020-09-02 · campaign 20V534000 · 8 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2020 Bus and Phaeton motorhomes. The steering pinch bolts may not have been properly tightened.
Risk: A loose steering pinch bolt can result in a loss of steering control, increasing the risk of a crash.
Fix: Tiffin will notify owners, and dealers will tighten the steering bolts to specification, free of charge. The recall began August 27, 2020. Owners may contact Tiffin customer service at 1-256-356-8661.
Visibility/Wiper 2020-07-28 · campaign 20V433000 · 643 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2019-2020 Tiffin Bus and 2018-2020 Zephyr motorhomes. The windshield wipers may not work due to the control module being improperly wired.
Risk: The wipers may stop working during inclement weather, causing limited visibility, increasing the risk of a crash.
Fix: Tiffin will notify owners, and dealers will inspect the control module, correcting the wiring as needed, free of charge. The recall began August 13, 2020. Owners may contact Tiffin customer service at 1-256-356-8661.
Service bulletins (2)
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.
Equipment:recreational Vehicle/Trailer 2020-01-15 · TIFF 12-2019 · Service Bulletin/Repair Instructions
there is the possibility the water filter housing is installed incorrectly. if a motorhome has the water filter housing installed incorrectly, there is the possibility of excess air in the water lines.
What owners report
2021-08-10 · Engine“def "head" sensor failure resulting in power reduction to 5%. due to faulty def head sensors the vehicle will experience power loss dropping to 5% load. these sensors do nothing but measure def fluid level and temperature in it's tank. def continues to be supplied to the exhaust meeting all epa regulations in place at this time, but the engine e…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.