Complaints over time
Complaints about the 2018 Tiffin Allegro peaked in 2018, with 2 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2018 Tiffin Allegro
Other, diesel, 4x2, built in Germany. Owner complaints on file from Apr 6, 2018 to Jul 28, 2021.
Recall campaigns covering this model year350k vehicles or units across those campaigns
Owner complaints42.0 times the median 2018 other
Severity index0.02018 others average 4.1
First 24 months2Complaints in its first two years
Components
50% of complaints about the 2018 Tiffin Allegro name brakes
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
3 recall campaigns cover the 2018 Tiffin Allegro
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 22V-068 | Feb 8, 2022 | Buss bar may be improperly secured, which can cause electrical components in the DC Distribution Panel to overheat | Electrical system | 3,708 | Part replacement |
| 21V-680 | Nov 5, 2021 | Sofa seat belts may not have been installed correctly, which could result in unsecured passengers | Seat belts | 10,409 | Repair or modification |
| 17V-841 | Dec 22, 2017 | These motorhomes are equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers that may become clogged, preventing the… | Equipment | 36,005 | Part replacement |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2018 Tiffin Allegro
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.
4 complaints on file, page 1 of 1.
- Filed Jul 28, 2021Failure Apr 1, 2019Box Elder, SDEngine
RV Diesel Exhaust Fuel (DEF Head) Sensor failure. These failure rendered our RV drivability limited and us stranded at Cummins dealerships, once in 2019 and again in 2020. We have been full time RV'ers and rely on motorhome getting us from place to place. We were lucky to not have the engine derate while driving, but had to pull over on the freeway, there were no off ramps or rest stops for miles as multiple warning lights and codes flashed on the dash so we could call Tiffin to ask for help, what to do and where to go. We where able to get to a Cummins dealer to have it fixed. We were warned to drive slow and straight to the Cummins dealership before the engine derated. RV Diesel Exhaust Fuel Sensor failures have been occurring & re-occurring at an astronomical rate across the country, we firmly believe that RV's should be exempt from requiring DEF / DEF Sensors, period. Please do not wait until there is a FATALITY, OR POSSIBLE GREATER FATALITIES before making this change retroactive for all RV's nationally. The Cummins dealerships and Tiffin have the repair records. The error codes we received was SPM 3521 FMI 11 error code. Looking it up it is "After treatment 1 Diesel Exhaust Fluid Property". Also SPN 3364-9, ECM 1761-9, ECM 3031-9, SPN 3364-9 and ECM 3031-9 showed up.
NHTSA complaint 11426798 - Filed Dec 27, 2020Failure Dec 7, 20209,569 milesJasper, ALPower train, Service brakes
WHEEL SPEED SENSORS WENT OUT,AND WENT INTO LIMP MOOD,TRANSMISSION WOULD NOT, SHIFT,LIGHTS CAME ON DASH,ABS,CHECK ENGINE LIGHT,AND MOORE. THIS WAS ON A INTERSTATE,GOOD WAY TO GET RUN OVER. WE ARE IN A REV CLUB THERE IS A LOT OF THIS GOING ON.
NHTSA complaint 11385121 - Filed Oct 21, 2018Failure Oct 9, 20184,488 milesWausau, WIBody
ENTRY DOOR LATCH ON OUR TIFFIN 2018 ALLEGRO BUS UNLATCHED AS WE WERE IN MOTION ON A HIGHWAY
NHTSA complaint 11141679 - Filed Apr 6, 2018Failure Mar 19, 20186,400 milesGlendora, CAService brakes
TL* THE CONTACT OWNS A 2018 TIFFIN ALLEGRO HITCHED TO A FREIGHTLINER CHASSIS. THE CONTACT STATED THAT WHILE DRIVING DOWN AN INCLINE, THE EXHAUST BRAKE SYSTEM ACTIVATED CAUSING THE BRAKE LIGHTS TO THE FREIGHTLINER CHASSIS TO ACTIVATE. AS A RESULT, THE BRAKE LIGHTS REMAINED ACTIVATE ON THE RV AS WELL AND THE CONTACT WAS CONCERNED THAT THAT THEY WOULD OVERHEAT DURING THE SIXTEEN MILE DOWNHILL DRIVE. THE CONTACT MENTIONED THAT ONLY THE TOWED VEHICLES BRAKE LIGHTS SHOULD ILLUMINATE AND THAT THE BRAKES SHOULD ONLY ACTIVATE WHEN THE BRAKE PEDAL WAS DEPRESSED. THE VEHICLE WAS TAKEN TO FREIGHTLINER DEALER: M & M COACH AT 5787 MCCULLY ST, CHINO, CA 91710 WHERE THEY ATTEMPTED TO TURN OFF THE BRAKES LIGHTS BUT FAILED. THE FREIGHTLINER MANUFACTURER WAS NOTIFIED OF THE FAILURE WHERE THEY INFORMED THE CONTACT THAT THE MULTIPLEX SYSTEM WAS PROGRAMMED WHERE THE BRAKE LIGHTS REMAIN ILLUMINATED WHEN THE EXHAUST BRAKE SYSTEM WAS ACTIVATED. THE APPROXIMATE FAILURE MILEAGE WAS 6,400. NO FURTHER INFORMATION WAS AVAILABLE FOR THE FREIGHTLINER CHASSIS.
NHTSA complaint 11083613
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.
- 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. - Letter to dealer Nov 10, 2017 · Service Bulletin/Repair Instructions
This was a letter to our dealers we sent out when we first heard of the Kidde fire extinguisher recall, even though it was still unofficial. We knew our coaches on the dealers' lots contained Kidde and could not be sold unreplaced. - SB-55 Jun 5, 2017 · Service Bulletin/Repair Instructions
Possibility that the wires connecting the air conditioners to the 120 volt AC load center were not properly installed. If this wiring is not corrected there could be some nuisance tripping of the generator circuit breakers.
Source: NHTSA manufacturer communications files.