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Model year

2020 Tiffin Allegro BUS

Other, diesel, built in United States. Owner complaints on file from Mar 30, 2022 to Mar 31, 2022.

Recall campaigns covering this model year212k vehicles or units across those campaigns
Owner complaints2Close to the median 2020 other
Severity index50.02020 others average 6.4
First 24 months0Complaints in its first two years
Complaints over time

Complaints about the 2020 Tiffin Allegro BUS peaked in 2022, with 2 filed

Owner complaints about this model year, by the year they were filed with NHTSA.

00.511.52202222023202420252026
Source: NHTSA ODI complaints file. The lighter column runs through October.
Components

100% of complaints about the 2020 Tiffin Allegro BUS name fuel system

Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.

Fuel system
2
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls

2 recall campaigns cover the 2020 Tiffin Allegro BUS

Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.

Recall campaigns for the 2020 Tiffin Allegro BUS
CampaignFiledSubjectComponentVehiclesRemedy
23V-643Sep 20, 2023240-Volt induction cooktop may not be grounded, which can create an electrical shock hazard if the wires short-circuitEquipment1,188Repair or modification
21V-680Nov 5, 2021Sofa seat belts may not have been installed correctly, which could result in unsecured passengersSeat belts10,409Repair or modification
Source: NHTSA ODI recalls file.
Owner complaints

What owners reported about the 2020 Tiffin Allegro BUS

The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.

2 complaints on file, page 1 of 1.

  1. Filed Mar 31, 2022Failure Mar 28, 202215,000 milesLake Stevens, WAFuel system, Fuel railFire

    The contact owns a 2020 Tiffin Allegro Bus. The contact stated that while operating the vehicle the odor of diesel fuel was present inside the motorhome. Upon inspection it was discovered that the diesel fuel was leaking from the high pressure fuel rail onto the reburner causing smoke to be present. The fire dept was call to the scene but no action was needed. The vehicle was towed to the local service center who diagnosed that the high pressure fuel rail was faulty and needed to be replaced. The contact indicated that the vehicle was previously serviced under the NHTSA recall campaign number 21v306000(fuel system) for the same failure but after the recall repair the same failure had occurred. The failure mileage was 15,000.

    NHTSA complaint 11459074
  2. Filed Mar 30, 2022Failure Feb 2, 2022Temecula, CAFuel system, Diesel

    The contact owns a 2020 Tiffin Allegro Bus. The contact received a notification for NHTSA Campaign Number: 21E320000 (Fuel System, Diesel). The dealer had been notified about the recall and informed him that if the fuel rails were stable upon inspection of the vehicle, they could make needed reinforcements and return the vehicle; however, if the fuel rails needed replacement, the vehicle would have to remain in the dealer's possession until parts became available. The manufacturer had been notified of the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the repair. The contact had not experienced a failure. Parts distribution disconnect.

    NHTSA complaint 11458968
Source: NHTSA ODI complaints file.
Investigations

NHTSA has not opened an investigation on this model year

Source: NHTSA ODI investigations file.
Service bulletins

3 manufacturer communications cover this model year

Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.

  • CSA-045 Sep 8, 2025 · 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 r…
  • MCD-009 Jun 9, 2025 · 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.
  • CSA-036 Apr 19, 2024 · Service Bulletin/Repair Instructions
    Faulty DEF sensors that due to shortage were not replaced. Instead engine software was temporarily modified to account for continued operation with a faulty sensor until replacement sensors were available. This campaign will install an engine control modu…
Source: NHTSA manufacturer communications files.