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: 3 of 3 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.
Fuel/propulsion System. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
Engine And Engine Cooling. 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.
0 crash reports0 fire reports0 injury reports
What owners actually said
3 reports
16,000 miles · Apr 16, 2019
Fuel/propulsion System
VEHICLE IS 5 YRS OLD WITH ABOUT 16000 MILES. WHILE DRIVING ON INTERSTATE WIFE NOTICED A SMELL COMING FROM THE REAR. WE THOUGHT IT WAS ENGINE CLEANER BURNING OFF FROM AN OIL LEAK REPAIRED A FEW DAYS PRIOR BY CUMMINS. SMELL GOT STRONGER SO PULLED INTO TRUCK STOP AND FOUND A HUGE DIESEL FUEL LEAK ON THE PASSENGER SIDE OF THE ENGINE…
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VEHICLE IS 5 YRS OLD WITH ABOUT 16000 MILES. WHILE DRIVING ON INTERSTATE WIFE NOTICED A SMELL COMING FROM THE REAR. WE THOUGHT IT WAS ENGINE CLEANER BURNING OFF FROM AN OIL LEAK REPAIRED A FEW DAYS PRIOR BY CUMMINS. SMELL GOT STRONGER SO PULLED INTO TRUCK STOP AND FOUND A HUGE DIESEL FUEL LEAK ON THE PASSENGER SIDE OF THE ENGINE. WE HAD A STEADY STREAM BEHIND US FROM PULLING IN NOT THE OCCASIONAL DROP HERE AND THERE. AFTERWARDS WE ESTIMATED THAT WE LOST ABOUT 10 GALLONS IN 30 MILES. THE CAUSE WAS A BROKEN #4 FUEL INJECTOR LINE BETWEEN THE COMMON RAIL AND THE BLOCK AT THE FERRULE AGAINST THE BLOCK. THE NEW PART HAS AN ADDITIONAL SUPPORT BETWEEN THE TWO CONNECTIONS TO KEEP IT FROM FLEXING AND CRACKING SO IT MUST BE A KNOWN ISSUE AS CUMMINS HAS CHANGED THE DESIGN OF THE PART. THE CUMMINS REPAIR FACILITY ALSO SAID IT WAS A FAIRLY COMMON ISSUE THEY SEE. THE ENTIRE SIDE OF THE ENGINE AND EXHAUST WAS DRIPPING WITH FUEL. IF THERE HAD BEEN A REGEN GOING ON IT LIKELY WOULD HAVE CAUSED A FIRE DUE TO THE HIGH TEMP AND THE FACT THAT THAT PART OF THE EXHAUST WAS SOAKED IN FUEL.MY UNDERSTANDING IS THAT THEY HAVE A SIMILAR ISSUE WITH THE # 6 LINE SINCE IT HAS A REVISION TO A MIDPOINT SUPPORT BRACKET AS WELL AND ANY RV FORUM WILL HAVE REPORTS OF THAT FAILURE AS WELL.*DT CONSUMER STATED FUEL LEAKS ARE A KNOWN ISSUE. CONSUMER DID NOT CONTACT MANUFACTURER. *JB
NHTSA ODI #11196808
22,893 miles · Mar 1, 2017
Fuel/propulsion System
PULLED INTO CAMPGROUND THEN STOPPED AND GOT OUT TO REGISTER. DIESEL FUEL LEAKING, TOAD COVERED WITH DIESEL FUEL AND MUCH SMOKE. #4 FUEL INJECTOR TUBE HAD CRACK IN IT---NO DAMPER ISOLATOR INSTALLED TO DAMPEN VIBRATION. NEW TUBE HAD ISOLATOR RING TO BOLT DOWN.
NHTSA ODI #10957745
7,500 miles · Dec 4, 2014
Engine And Engine CoolingFuel/propulsion System
CUMMINS FUEL FILTER FF 63009 DATE CODE 14200, APPEARED TO HAVE FAILED, LEAKING FUEL ONTO THE EXHAUST PIPE AS WELL AS STALLING THE MOTOR HOME AT THE CREST OF A SMALL MOUNTAIN.LEAKING FUEL DID NOT CAUSE A FIRE BUT DID SMOKE. IF ENGINE HAD BEEN IN REGEN MODE THERE COULD HAVE BEEN A FIRE....CONTACT WITH CUMMINS REVEALED THAT THEY H…
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CUMMINS FUEL FILTER FF 63009 DATE CODE 14200, APPEARED TO HAVE FAILED, LEAKING FUEL ONTO THE EXHAUST PIPE AS WELL AS STALLING THE MOTOR HOME AT THE CREST OF A SMALL MOUNTAIN.LEAKING FUEL DID NOT CAUSE A FIRE BUT DID SMOKE. IF ENGINE HAD BEEN IN REGEN MODE THERE COULD HAVE BEEN A FIRE....CONTACT WITH CUMMINS REVEALED THAT THEY HAVE HAD SOME OF THESE FILTERS FAIL WITH NO APPARENT VISUAL DEFECTS BUT DID SHOW UNDER PRESSURE. *TR
Tiffin Motorhomes, Inc. (Tiffin) is recalling certain 2009-2018 Allegro and Allegro RED, Bus and Phaeton vehicles, 2009-2010 Bay vehicles, 2011-2018 Breeze vehicles, and 2009-2015, and 2017-2018 Zephyr vehicles. These motorhomes are equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers that may become clogged, preventing the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf
Consequence & remedy
Consequence: In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Remedy: Tiffin will notify owners, and instruct them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on February 5, 2018. Owners may contact Kidde customer service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information. Owners may also contact Tiffin customer service at 1-256-356-8661.
Tiffin Motorhomes (Tiffin) is recalling certain model year 2007-2015 motorhomes manufactured May 1, 2007, to December 31, 2014, equipped with certain Coachstep Double and Triple Electric Steps. The bolt that attaches the fan gear assembly to the steps may fracture allowing the fan gear to disengage from the steps. As a result, the steps may not remain in the expected position and may become unstable.
Consequence & remedy
Consequence: Unstable entry and exit steps increase the risk of injury.
Remedy: Dealers will install a retainer bracket on the double step assemblies and the Coachstep Linkage Assembly will be replaced and a retainer bracket will be installed on the trip step assemblies. The recall began on Ferbuary 10, 2016. Owners may contact Tiffin customer service at 1-256-356-8661, or Lippert customer service at 1-574-537-8900.
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
0
No exact-year investigations in this snapshot.
2014 Tiffin Phaeton Problems, Complaints & Recalls | Skip That Year
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