Complaints by model year
Each bar is one model year. The most recent years are still collecting complaints.
NHTSA ODI complaints (public domain) · updated 23 Oct 2026
Year by year
| Model year | Complaints | Recalls |
|---|---|---|
| 2013 | 0 | 0 |
| 2011 | 1 | 4 |
| 2010 | 1 | 5 |
| 2009 | 1 | 1 |
| 2008 | 2 | 2 |
| 2007 | 1 | 3 |
| 2006 | 4 | 3 |
| 2005 | 1 | 2 |
| 2004 | 4 | 1 |
| 2002 | 2 | 1 |
| 2001 Diplomat | 6 | 4 |
| 2000 Diplomat | 14 | 2 |
| 1999 Diplomat | 10 | 3 |
| 1998 | 1 | 3 |
A model year gets its own page when it has enough data for at least three sections
Most common problems
- Structure12
- Visibility11
- Equipment10
- Electrical system9
- Tires4
- Service brakes, hydraulic4
- Unknown or other3
- Suspension3
NHTSA ODI complaints, all model years
Recalls
20 campaigns cover the Diplomat; the latest 12 are below.
NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2008-2010 BEAVER AND CERTAIN MODEL YEAR 2009-2011 MONACO, AND CERTAIN MODEL YEAR 2009-2011 HOLIDAY RAMBLER RECREATIONAL VEHICLES, MANUFACTURED FROM OCTOBER 25, 2007, THROUGH AUGUST 26, 2010, EQUIPPED WITH IOTA ITS-50R 50 AMP AUTOMATIC TRANSFER SWITCHES. THE IOTA ITS-50R 50 AMP AUTOMATIC TRANSFER SWITCH BUS BAR AND/OR ELECTRICAL CONNECTIONS MAY BE INADEQUATE TO HANDLE THE ELECTRICAL LOAD.
NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2009-2011 BEAVER, HOLIDAY RAMBLER AND MONACO COACH BRAND RECREATIONAL VEHICLES MANUFACTURED FROM JANUARY 11, 2008, THROUGH APRIL 15, 2011. SEE THE ABOVE LIST FOR MODELS. THE FRONT WINDSHIELD SHADE MAY SEPARATE FROM THE CABIN BODY WITHOUT WARNING, POSSIBLY IMPAIRING THE DRIVER'S ABILITY TO SEE THE ROADWAY.
NAVISTAR IS RECALLING CERTAIN RECREATIONAL VEHICLES EQUIPPED WITH 1200-SERIES NORCOLD REFRIGERATORS. THE POPULATION OF REFRIGERATORS BEING ADDRESSED CONTAINS EITHER A SENSING ALGORITHM OR THERMAL SWITCH TO SHUT OFF POWER TO THE REFRIGERATOR WHEN HIGH TEMPERATURES ARE DETECTED IN ORDER TO PREVENT A POTENTIAL FIRE. THE RESPONSE TIMES OF THE SENSOR ALGORITHM AND THERMAL SWITCH DEVICES TO STOP POWER ARE NOT SUFFICIENT.
NAVISTAR IS RECALLING CERTAIN VEHICLES EQUIPPED WITH DIMPLEX ELECTRAFLAME, SYMPHONY, OR OPTIFLAME BRANDED ELECTRIC FIREPLACES, STOVES, AND FIREPLACE INSERTS. THE PLUG IN REMOTE CONTROL RECEIVER FOR THE FIREPLACE CAN OVERHEAT.
KONGSBERG POWER PRODUCTS SYSTEMS I, INC., (KPPS) IS RECALLING ON BEHALF OF MONACO COACH CERTAIN MODEL YEAR 2008-2010 MOTOR HOMES MANUFACTURED AFTER APRIL 2007 AND EQUIPPED WITH PNEUMATIC AND HYDRAULIC ADJUSTABLE BRAKE PEDAL ASSEMBLIES SUPPLIED BY KPPS. THE DRIVE PIN WHICH SECURES THE BRAKE PEDAL ARM TO THE BALANCE OF THE ASSEMBLY MAY BECOME DISENGAGED, THIS MAY CAUSE A REDUCTION IN VEHICLE BRAKING AND/OR CAUSE THE BRAKE PEDAL TO MOVE OUT OF POSITION AND INTERFERE WITH THROTTLE PEDAL FUNCTION.
NAVISTAR IS RECALLING CERTAIN MODEL YEAR 2008-2009 BEAVER CONTESSA, MODEL YEAR 2009 BEAVER MARQUIS, PATRIOT, MONTEREY, MODEL YEAR 2009-2010 HOLIDAY RAMBLER AMBASSADOR, MODEL YEAR 2010-2011 HOLIDAY RAMBLER ENDEAVOR, MODEL YEAR 2009-2010 HOLIDAY RAMBLER IMPERIAL, MODEL YEAR 2010 HOLIDAY RAMBLER NAVIGATOR, AND SCEPTOR, MODEL YEAR 2010 MONACO CAMELOT MODEL YEAR 2010-2011 MONACO DIPLOMAT, MODEL YEAR 2010 MONACO DYNASTY, MODEL YEAR 2009-2010 MONACO KNIGHT AND MODEL YEAR 2010 MONACO SIGNATURE MANUFACTURED FROM JANUARY 22, 2008 THROUGH OCTOBER 27, 2009 ON BEHALF OF MONACO RV WITH KONGSBERG POWER PRODUCTS SYSTEMS ADJUSTABLE BRAKE PEDALS. THE DRIVE PIN WHICH SECURES THE BRAKE PEDAL ARM TO THE BALANCE OF THE ASSEMBLY MAY BECOME DISENGAGED, THIS MAY CAUSE A REDUCTION IN VEHICLE BRAKING AND/OR CAUSE THE BRAKE PEDAL TO MOVE OUT OF POSITION AND INTERFERE WITH THROTTLE PEDAL FUNCTION.
MONACO IS RECALLING CERTAIN MOTOR HOMES EQUIPPED WITH NORCOLD REFRIGERATORS. A FATIGUE FAILURE IN THE SECTION OF THE COOLING UNIT WHICH CONTAINS THE REFRIGERANT COULD ALLOW THE LIQUID SOLUTION TO SLOWLY LEAK.
MONACO IS RECALLING 1,733 MY 2006-2007 DIPLOMAT AND HOLIDAY RAMBLER ENDEAVOR MOTOR HOMES EQUIPPED WITH WIPER SYSTEMS SUPPLIED BY AM EQUIPMENT. THE DRIVE MOTOR LINK BECOMES DISENGAGED DURING OPERATION FROM THE WIPER DRIVE ARM WHERE IT ATTACHES TO THE DRIVE ARM CAUSING THE WIPER SYSTEM TO FAIL.
ON CERTAIN MOTOR HOMES EQUIPPED WITH ATWOOD SEALED BURNER RANGES, THE RANGE AND SLIDE-IN BURNER TUBES LEADING FROM THE GAS MANIFOLD TO THE BURNER HEADS HAD A DEPRESSION OR 'KINK' IN THE EXTERIOR BEND RESTRICTING PROPER AIRFLOW AND GAS MIXTURE.
ON CERTAIN MOTOR HOMES BUILT WITH CUMMINS ISL CM850 DIESEL ENGINES, THE CONNECTING ROD CONTAINS A MACHINING DEFECT IN THE WRIST PIN BUSHING OF THE ROD THAT COULD CAUSE A SEIZURE OF THE PISTON PIN.
ON CERTAIN MOTOR HOMES, THE HEADLIGHT SWITCH IN THE FRONT ELECTRICAL BOX/FIREWALL CAN OVERLOAD.
ON CERTAIN MOTOR HOMES, THE WATER HEATER EXHAUST ON THE CURVE SIDE WALL UNDER THE BACK SIDE OF THE KITCHEN SLIDEOUT ROOM BOX TERMINATES UNDER THE SLIDE BOX WHEN IN THE EXTENDED POSITION. THIS DESIGN COULD CREATE A RISK OF MIGRATION OF CARBON MONOXIDE INTO THE INTERIOR OF THE MOTOR HOME.
NHTSA recalls