2003 Tiffin Allegro: common problems

Owners of the 2003 Tiffin Allegro filed 11 complaints with NHTSA, most often about service brakes and engine and cooling. Details by component below, with sources.

Key figures

Owner complaints: 11

What fails most often

1 Service brakes 55% of all complaints
2 Engine and cooling 36% of all complaints
3 Electrical system 9% of all complaints
4 Fuel system 9% of all complaints

Circle size and colour show each component’s share of NHTSA complaints. Schematic only, not a drawing of the exact model.

Service brakes: 6 complaints (55% of all).
Engine and cooling: 4 complaints (36% of all).
Electrical system: 1 complaints (9% of all).
Fuel system: 1 complaints (9% of all).

Symptoms owners describe

How many of the 11 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).

brake failure4 · 36%
stalls while driving3 · 27%
A/C or heater1 · 9%
fuel system, fuel smell1 · 9%
loss of power / limp mode1 · 9%
rollaway, parking brake1 · 9%
smoke, burning smell, fire1 · 9%
warning lights, check engine1 · 9%

Components owners complain about

Component	Owner complaints	involving a crash	Technical service bulletins (TSB)
Service brakes	6	0	0
Engine and cooling	4	0	0
Electrical system	1	0	0
Fuel system	1	0	0

What owners report

Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.

Sudden loss of brakes on a downhill grade. Had to pull to shoulder and scrape along until slowed enough to stop with parking brake. Calipers froze causing boil over of fluids that burned brake hoses and sensors.
Service brakes · 2019-06-27 · NHTSA complaint #11223000
While driving 65 mph, the reduce power warning light illuminated as the rv stalled. The contact was able to restart the rv after several moments. The contact stated that the failure would recur intermittently on a regular basis. The rv was taken to a dealer twice and they were unable to duplicate the failure.
Engine and cooling · 2011-02-03 · NHTSA complaint #10380063
While driving approximately 60-65 mph he engaged the brakes and he could smell smoke. He stated that when this happened he had to allow the brakes to cool off in order to continue driving. He received two recall notices and workhorse had not found a solution for the recall repair. The failure occurred intermittently.
Service brakes · 2010-07-01 · NHTSA complaint #10341010
In 2008 full loss of brake functioning in our 2003 allegro motorhome with a workhorse chassis going up hill. We had motorhome towed to service center. Workhorse refused to take responsibility claiming it was my husband who held the brakes on to long. He is a professional cement truck driver and this is not the case.
Service brakes · 2010-04-27 · NHTSA complaint #10327796
Dt*: the contact stated while driving 15mph the vehicle stalled twice. Both times the vehicle was towed to the dealer where the fuel pump was replaced.
Fuel system · 2006-04-25 · NHTSA complaint #10156080
Motorhome lost power on 4 different occasions and suffered a severe jolt while travelling 60 - 65 mph on 3 diffrerent occasions.
Engine and cooling · 2003-07-21 · NHTSA complaint #10028746
Heater grid is part of engine cooling system. This system didn't turn off and wire was burning. Dealership is aware of problem.
Engine and cooling · 2002-09-12 · NHTSA complaint #8018543

When owners complained

NHTSA complaints by filing year. The peak shows at what age the problems show up most.

20022
20031
20061
20081
20092
20102
20111
20191

Comparison

By complaint count this model year ranks 10,520 of 36,656 model years in the NHTSA data (top 29% most complained about).

On average one model year of the Allegro has 3 complaints (39 years in the data). This year has 11, above average.

What to check before buying

Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
Fuel system. Fuel smell, leaks, rough running, fuel-system codes.

Questions and answers

What are the most common problems with the 2003 Tiffin Allegro?

Owner complaints to NHTSA most often mention: service brakes, engine and cooling, electrical system. Total complaints: 11. The most frequent symptoms in complaint texts: brake failure (36%), stalls while driving (27%), A/C or heater (9%).

How many service bulletins (TSB) were issued for the 2003 Tiffin Allegro?

NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.

Should I buy a 2003 Tiffin Allegro from a US auction?

Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.

Other 2003 models

Tiffin Allegro BAY 2003

Read also

Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.