Engine Fault Codes 3364, 3031 & 1761. DEF Head Senor Failed. Derated the engine. Travel speed reduced to 5 MPH. Replacement Part backorder from Tiffin Motorhomes. Limited information when availability.
2019 Tiffin Phaeton
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all Phaeton years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 1 of 4 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Engine. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Structure. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Wheels. Review the 1 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
Engine complaints
1 reportsOfficial recalls
421V680000 · Seat Belts:rear/other:anchorage
Nov 5, 2021
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2018-2022 Allegro Breeze, Allegro Red, Allegro, Allegro Bus, Phaeton, and 2018-2021 Zephyr recreational vehicles. The sofa seat belts may not have been installed correctly, which could result in unsecured passengers. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 210, "Seat Belt Assembly Anchorages."
Consequence & remedy
Consequence: Unsecured passengers have an increased risk of injury in the event of a crash.
Remedy: Dealers will inspect and repair the seat belts as necessary, free of charge. Owner notification letters were mailed October 29, 2021. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-118.
21V306000 · Fuel System, Diesel:fuel Injection System:fuel Rail
Apr 30, 2021
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.
Consequence & remedy
Consequence: A fuel leak in the presence of an ignition source increases the risk of a fire.
Remedy: 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.
19V228000 · Electrical System
Mar 22, 2019
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2018-2019 Phaeton, Allegro Bus, and Zephyr motorhomes. The alternating current electrical wires may have been improperly secured in the Energy Management Module, causing increased electrical resistance.
Consequence & remedy
Consequence: The additional resistance can cause the wires to overheat, increasing the risk of a fire.
Remedy: Tiffin will notify owners, and dealers will inspect the Alternating Current Relay Board and make sure the wires are properly secured, free of charge. The recall began April 15, 2019. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIFF-111.
18V341000 · Structure:body:door
May 25, 2018
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2018-2019 Tiffin Allegro RED, Allegro Open Road, Breeze, Bus, Phaeton, and Zephyr motorhomes. The entry door on these vehicles may have been improperly assembled, allowing the door to open while the vehicle is moving.
Consequence & remedy
Consequence: If the door comes open while the motorhome is moving, there is an increased risk of injury to the motorhome occupants.
Remedy: Tiffin will notify owners, and dealers will adjust the door lock mechanism, free of charge. The recall began on June 18, 2018. Owners may contact Tiffin customer service at 1-256-356-8661. Tiffin's number for this recall is TIF-110.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.
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