2023 Tiffin Allegro Bus problems: recalls, complaints and what to check
NHTSA has 5 recalls and 2 owner complaints on file for the 2023 Tiffin Allegro Bus. Here is what they are, what a technician checks for each kind of fault, and how to look one over before you buy it.
12 volt and 120 volt electrical: 3 recalls
Recall 22V589000 (05/08/2022): ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS
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.
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.
Recall 23V406000 (05/06/2023): ELECTRICAL SYSTEM
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.
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.
Recall 24V566000 (30/07/2024): ELECTRICAL SYSTEM:IGNITION
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.
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.
What a tech checks: Voltage drop, grounds, the converter and the transfer switch. Melted shore-cord plugs and bad grounds cause most of the electrical complaints techs actually see. Before you buy: Battery at rest, converter output on shore power, GFCI test, every outlet.
12 V electrical lessons · 120 V and generator lessons · Wiring diagrams
LP gas and gas appliances: 2 recalls
Recall 23V643000 (20/09/2023): EQUIPMENT:APPLIANCE:OVEN/STOVE/COOKTOP
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.
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.
Recall 26V662000 (08/10/2026): FUEL SYSTEM, DIESEL:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS
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.
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
What a tech checks: Regulator, lines and fittings, then the appliances: furnace, water heater, range. A proper pressure-drop leak test is the first thing a tech does on an LP complaint. Before you buy: Smell for gas with the tank open; have a shop do the leak test.
LP and furnace lessons · Furnace guide · Furnace 3D lab · Water heater 3D lab
Other: 1 complaint
Motorhome chassis: 1 complaint
What a tech checks: The chassis (Ford, Freightliner, Mercedes, Ram) is serviced by the chassis maker's dealer, not the RV shop. RV techs handle the house, not the drivetrain. Before you buy: Chassis recalls are fixed free at the chassis maker's dealer.
What owners reported to NHTSA
08/28/2024, FORWARD COLLISION AVOIDANCE: 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.
07/11/2024, ENGINE: Extreme engine heat into vehicle
Looking at a 2023 Tiffin Allegro Bus?
The Buyer's Check walks you through it on your phone: what to ask, the outside walk-around, water damage, every system on every power source, with the recalls above built in. You get a report that says what's a walk-away and what to negotiate on.
Checked against NHTSA 2026-10-23. Recall repairs are free at an authorized dealer. Complaints are owner reports to NHTSA and are not verified.