2023 Tiffin Allegro Bus problems, complaints & recalls
Most-reported problem areas: Forward Collision Avoidance: Adaptive Cruise Control (1) · Engine (1)
Safety recalls (5)
Fuel System, Diesel:delivery:hoses, Lines/Piping, And Fittings 2026-10-08 · campaign 26V662000 · 177 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2022-2025 Allegro Bus, and Phaeton motorhomes, equipped with certain L9 diesel engines, part number D563027BX03. The remote fuel filter hoses may separate from the fitting, causing a fuel leak and an engine stall.
Risk: A fuel leak in the presence of an ignition source increases the risk of a fire. An engine stall increases the risk of a crash.
Fix: Cummins dealers will replace the fuel hoses, free of charge. Owner notification letters are expected to be mailed November 20, 2026. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-150
Electrical System:ignition 2024-07-30 · campaign 24V566000 · 679 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2022-2025 Phaeton, Allegro Bus, and Zephyr motorhomes. The PowerGlide chassis controller may have insufficient circuit protection, which can result in a blown fuse and cause an engine shutdown.
Risk: An engine shutdown increases the risk of a crash.
Fix: Dealers will install circuit protection, free of charge. Owner notification letters were mailed September 13, 2024. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-141.
Equipment:appliance:oven/Stove/Cooktop 2023-09-20 · campaign 23V643000 · 1,188 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2016-2024 Allegro Bus, and 2017-2024 Zephyr motorhomes. The 240-Volt induction cooktop may not be grounded, which can create an electrical shock hazard if the wires short-circuit.
Risk: An electrical shock can increase the risk of injury.
Fix: Dealers will install a ground for the metal junction box, free of charge. Owner notification letters were mailed October 20, 2023. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-133.
Electrical System 2023-06-05 · campaign 23V406000 · 450 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2022-2023 Phaeton, Allegro Bus, and Zephyr motorhomes built on PowerGlide chassis. A fuse will trip during an a/c compressor failure, causing a loss of power to the chassis.
Risk: Loss of power to the chassis can cause an engine stall, increasing the risk of a crash.
Fix: Dealers will inspect the chassis controller, and install a harness and inline fuse as necessary, free of charge. Owner notification letters were mailed June 20, 2023. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-131.
Electrical System:wiring:fuses And Circuit Breakers 2022-08-05 · campaign 22V589000 · 315 vehicles
Defect: Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2022 Zephyr, 2022-2023 Phaeton, Allegro Breeze and Allegro Bus motorhomes equipped with a Powerglide chassis. The chassis fuse can overheat while the motorhome is in motion, possibly causing the dash display to go blank and the engine to stall.
Risk: An engine that shuts down unexpectedly increases the risk of a crash.
Fix: Dealers will inspect and replace the defective fuse, as necessary, free of charge. Owner notification letters were mailed August 31, 2022. Owners may contact Tiffin's customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-126.
Service bulletins (5)
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.
Fuel/Propulsion System 2025-09-08 · CSA-045 · Other
tiffin sent out an addendum to be added to owner's manuals that states, "tiffin motorhomes recommends that all diesel units be refueled using standard automotive-grade diesel fuel pumps, rather than high-flow commercial truck stop pumps. the fuel delivery rate from commercial truck stop pumps is oft
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.
Unknown Or Other 2024-10-29 · SB-75 · Service Bulletin/Repair Instructions
it has come to our attention that on certain tiffin motorhomes equipped with optional go power! solar panel solar panels systems, the 30a inline fuse located before the cable entry plate should be removed. the plastic housing surrounding the fuse may become heat damaged from heat generated by the n
Engine 2024-07-15 · CSA-039 · Other
cummins inc has launched a campaign that may affect your model year 2021-2022 l9 cm2450 l126b engine. our records indicate that you engine may have been built with incorrect torqueing on the speed indicator ring bolts. if left unchecked, the engine may fail. this campaign (c7024) will provide the r
Equipment:other:labels 2023-03-01 · CSA-026 · Service Bulletin/Repair Instructions
some 2023 year models of tiffin motorhomes built on powerglide chassis have a federal certification label that does not have the tire information listed. to correct this issue, we are sending dealers and owners of involved units a corrected federal certification label to be placed in the involved mo
What owners report
2024-08-28 · Forward Collision Avoidance: Adaptive Cruise Control“i have an interesting issue. driving down the road and the buttons on the steering wheel stop working. i pull over turn the rv off, wait a minute then turn the rv on and the buttons now work. the dealer has already replaced the module controlling the buttons. …”
2024-07-11 · Engine“extreme engine heat into vehicle…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.