← New search

2000 Monaco Coach Diplomat

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

Other model years Selected year
Compare all Diplomat years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

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: 5 of 14 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.

  • Structure. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Equipment. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Visibility. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

1 crash reports1 fire reports1 injury reports

What owners actually said

14 reports
24,184 miles · Jun 21, 2008
EquipmentFire

THIS INVOLVES A NORCOLD 1200 LRIM REFRIGERATOR AND A 2000 MONACO DIPLOMAT 40 PBD MOTORCOACH. WHEN THE REFER WAS REMOVED TO CONDUCT THE RECALL WORK, IT WAS FOUND TO HAVE CAUGHT FIRE PREVIOUSLY, AND HAD SIGNS OF SERIOUS OVERHEATING, CAUSING THE CASE OF THE REFRIGERATOR TO PARALYZE (ALUMINUM FOIL COATING, PAPER BACKING AND FOAM INS…

Read full complaint

THIS INVOLVES A NORCOLD 1200 LRIM REFRIGERATOR AND A 2000 MONACO DIPLOMAT 40 PBD MOTORCOACH. WHEN THE REFER WAS REMOVED TO CONDUCT THE RECALL WORK, IT WAS FOUND TO HAVE CAUGHT FIRE PREVIOUSLY, AND HAD SIGNS OF SERIOUS OVERHEATING, CAUSING THE CASE OF THE REFRIGERATOR TO PARALYZE (ALUMINUM FOIL COATING, PAPER BACKING AND FOAM INSULATION BEHIND FLUE TUBE). FURTHER A FIRE HAD OCCURRED ON THE TOP OF THE FLUE TUBE, WHERE FIBERGLASS INSULATION FROM THE COACH HAD BEEN IN CONTACT WITH THE TOP OF THE FLUE TUBE, CAUSING CHARRING TO THE INSULATION AND CEILING OF THE COACH, WITH THE EARLY STAGES OF PARALYSIS SETTING IN ON THE CEILING MATERIALS (FOAM AND OZITE CARPET COVERING). PHOTOS OF EVERYTHING WERE TAKEN, AND NORCOLD DENIED CULPABILITY, STATING THAT THE COOLING UNIT HAD NOT "BEEN A LEAKER" AND THAT MAINTENANCE HAD NOT BEEN DONE, WHICH IS NOT COMPLETELY TRUE, ALTHOUGH SOME MAINTENANCE ITEMS WERE NOT PERFORMED ACCORDING TO THE OWNER'S MANUAL (REMOVAL OF THE REFER FROM THE COACH AND SERVICING THE FLUE TUBE). MY CONCERNS ARE 1)OVERHEATING OF THE COOLING UNIT/FLUE TUBE DURING NORMAL OPS WITHOUT FAILURE OF THE COOLING UNIT (RECALL) AND 2) INCORRECT INSTALLATION OF REFER IN CABINET/INSTALLATION OF INSULATION WHICH LED TO CONTACT WITH SAID MATERIALS AND SLOW PARALYSIS/IGNITION. THIS COULD BE A CONDITION IN ALL OF THESE COACHES. *TR

NHTSA ODI #10231893

16,000 miles · Feb 6, 2008
StructureVisibility

ON 10/15/02 WHILE DRIVING MY RV TO A CAMPGROUND, I DETECTED A VERY STRONG ODOR OF ANTIFREEZE INSIDE THE RV AND NOTICED WETNESS ON THE CARPET NEAR THE FIRE WALL. IT RENDERED THE DEFROSTING OF THE FRONT WINDSHIELD NIL AND COULDN'T HARDLY SEE OUTSIDE AND DAMAGE THE SIDE COMPARTMENT OF THE R.V. THE UNIT WAS UNDER WARRANTY AND MONACO…

Read full complaint

ON 10/15/02 WHILE DRIVING MY RV TO A CAMPGROUND, I DETECTED A VERY STRONG ODOR OF ANTIFREEZE INSIDE THE RV AND NOTICED WETNESS ON THE CARPET NEAR THE FIRE WALL. IT RENDERED THE DEFROSTING OF THE FRONT WINDSHIELD NIL AND COULDN'T HARDLY SEE OUTSIDE AND DAMAGE THE SIDE COMPARTMENT OF THE R.V. THE UNIT WAS UNDER WARRANTY AND MONACO REPLACED THE DAMAGED HEATER CORE ON 12/23/02. ON 1/20/08 ON A TRIP TO ORLANDO THE SAME PROBLEM OCCURRED AGAIN. I ALMOST PASSED OUT AT THE WHEEL BECAUSE OF THE STRONG ODOR OF ANTIFREEZE LEAKING AGAIN INSIDE THE COACH. SAME PROBLEM: SPITED HEATER CORE. THE PLUMBING OF HEATER IS INCORRECT AND MONACO REFUSE TO ACKNOWLEDGED THE PROBLEM. *TR

NHTSA ODI #10217135

32,000 miles · Aug 28, 2006
StructureVisibility

DT*: THE CONTACT STATED WHILE DRIVING 55 MPH ON NORMAL ROAD CONDITIONS, THE RV'S WINDSHIELD CRACKED AND BECAME LOOSE. THE INCIDENT HAPPENED AFTER A YEAR OF OPERATION. THE WINDSHIELD WAS REPLACED AT A VEHICLE GLASS SHOP. THE DEALERSHIP DID NOT ASSUME ANY RESPONSIBILITY OVER THE WINDSHIELD FAILURE. THE CONSUMER STATED THE WI…

Read full complaint

DT*: THE CONTACT STATED WHILE DRIVING 55 MPH ON NORMAL ROAD CONDITIONS, THE RV'S WINDSHIELD CRACKED AND BECAME LOOSE. THE INCIDENT HAPPENED AFTER A YEAR OF OPERATION. THE WINDSHIELD WAS REPLACED AT A VEHICLE GLASS SHOP. THE DEALERSHIP DID NOT ASSUME ANY RESPONSIBILITY OVER THE WINDSHIELD FAILURE. THE CONSUMER STATED THE WINDSHIELD MOVED OVER AN INCH. UPDATED 09/20/06. *JB

NHTSA ODI #10166802

36,000 miles · Dec 3, 2003
TiresCrash

WHILE DRIVING AT 65 MPH AND WITH NO WARNING FRONT RIGHT TIRE TREAD SEPARATED, CAUSING THE TIRE TO BLOWOUT, AND DAMAGE THE VEHICLE. THIS HAPPENED IN DECEMBER 2002. ON JUNE 14 2003, WHILE DRIVING AT 65 MPH , LEFT FRONT TIRE TREAD SEPARATED, CAUSING A BLOWOUT. CONSUMER HAD TO PULL OVER, AND TOWED THE MOTOR HOME. GOODYEAR G…

Read full complaint

WHILE DRIVING AT 65 MPH AND WITH NO WARNING FRONT RIGHT TIRE TREAD SEPARATED, CAUSING THE TIRE TO BLOWOUT, AND DAMAGE THE VEHICLE. THIS HAPPENED IN DECEMBER 2002. ON JUNE 14 2003, WHILE DRIVING AT 65 MPH , LEFT FRONT TIRE TREAD SEPARATED, CAUSING A BLOWOUT. CONSUMER HAD TO PULL OVER, AND TOWED THE MOTOR HOME. GOODYEAR G159, SIZE R255/70 R22.5. THERE ARE A POLICE REPORT AND PICTURES. *AK *NM

NHTSA ODI #10037738

10,000 miles · Apr 21, 2003
Structure

THIS 2000 MONACO, DIPLOMAT MOTOR HOME HAS BEEN INHALING EXHAUST, ROAD DIRTY ETC. MAINLY THROUGH THE REAR CAP AREA, SINCE THE UNIT WAS NEW. THE FIRST SIGN WAS AN OILY STAIN IN THE CEILING AREA MOSTLY AROUND CABINETS. FOR APPROXIMATELY FIVE MONTHS THE FACTORY TOLD ME THEY DID NOT KNOW WHAT THE PROBLEM WAS AND UNTIL I FORCED THE IS…

Read full complaint

THIS 2000 MONACO, DIPLOMAT MOTOR HOME HAS BEEN INHALING EXHAUST, ROAD DIRTY ETC. MAINLY THROUGH THE REAR CAP AREA, SINCE THE UNIT WAS NEW. THE FIRST SIGN WAS AN OILY STAIN IN THE CEILING AREA MOSTLY AROUND CABINETS. FOR APPROXIMATELY FIVE MONTHS THE FACTORY TOLD ME THEY DID NOT KNOW WHAT THE PROBLEM WAS AND UNTIL I FORCED THE ISSUE IN THE FALL OF 2001, I DID NOT GET THE ANSWER. THE UNIT HAD NOT BEEN SEALED AT THE FACTORY. IT WAS SEALED IN 2001 THOUGH NEVER TESTED, THE PROBLEM CONTINUES AS OF TODAY! THE UNIT HAD AN ENVIRONMENTAL TEST IN OCTOBER 2001 WITH THE REPORT ISSUED JANUARY 2002 (ENCLOSED) AFTER MONTHS OF TRYING TO SEAL THE UNIT IT STILL LEAKS. IT HAS CAUSED SICKNESS AND ALSO POSSES A HEALTH AND SAFETY RISK AS THE FUMES ARE ALSO ENTERING THE DRIVERS COMPARTMENT. IT WAS INDICATED BY A SENIOR MANAGEMENT OFFICIAL THIS PROBLEM HAS BEEN ON GOING SINCE THE EARLY 1990'S. MONACO, THE MANUFACTURER HAS NOT DEMONSTRATED IT'S ABILITY TO BE ABLE TO FIX THE UNIT, HAS NOT OFFERED TO REPLACE IT AND WILL NOT DO A RECALL ON ALL THESE UNITS AS I HAVE REQUESTED OF THE CEO. *JB

NHTSA ODI #10016239

Mileage unknown · Jul 22, 2002
Structure

THE CONSUMER STATES THAT THE OPERATION OF ONE/BOTH REAR LEVELING JACK(S) WILL INTRODUCE A TORSIONAL OR TWISTING MOVEMENT OF THE COACH CHASSIS, WHICH OVER TIME WILL LOOSEN THE WINDSHIELD FROM THE FRAME AND CAUSE ONE EDGE/CORNER TO UNSEAT/PARTIALLY SEPARATE FROM THE MOLDING GASKET CREATING AN AIR GAP. (OTHER PROBLEMS WHICH ROOT F…

Read full complaint

THE CONSUMER STATES THAT THE OPERATION OF ONE/BOTH REAR LEVELING JACK(S) WILL INTRODUCE A TORSIONAL OR TWISTING MOVEMENT OF THE COACH CHASSIS, WHICH OVER TIME WILL LOOSEN THE WINDSHIELD FROM THE FRAME AND CAUSE ONE EDGE/CORNER TO UNSEAT/PARTIALLY SEPARATE FROM THE MOLDING GASKET CREATING AN AIR GAP. (OTHER PROBLEMS WHICH ROOT FROM THE REAR LEVEL JACK(S) ARE: ELECTRICAL, THE BODY SHIFTING CAUSED THE DOORS TO BIND, 4 TIMES THE PLASTIC LATCH ON THE EXTERIOR CARGO COMPARTMENT DOORS HAVE BROKEN, ALSO CAUSING THE BATTERY INVERTER SYSTEM TO OVER CHARGE THE COACH BATTERY(S). THE MOTORHOME IS UNSAFE TO DRIVE. THE MANUFACTURER STATES THAT THIS OCCURS WHEN THE LEVELING SYSTEM IS BEING USED IMPROPERLY. THE CONSUMER WAS TOLD BY MONACO THAT SOME SERVICE DEPARTMENTS FAILED TO USE PROPER INSTALLATION TECHNIQUES/DID NOT ALLOW PROPER CURVING OF THE WINDSHIELD SEALANT BEFORE PLACING THE VEHICLE BACK INTO SERVICE. *SCC *TS

NHTSA ODI #566793

Mileage unknown · Apr 1, 2002
SuspensionInjury

THE SLIDEOUT ROOM RETAINING CLAMPS ("TRAVEL LOCKS") CAUSE A DANGEROUS SITUATION. I WAS HIT, (NEARLY ON THE BACK OF THE HEAD) BY A LOOSE "TRAVEL LOCK" WHICH VIBRATED OUT OF PLACE DUE TO SLIDEOUT ROOM VIBRATION. THERE IS NO _POSITIVE_ MEANS OF SECURING THE CLAMP (TRAVEL LOCK) IN PLACE... ONLY FRICTION. THE CLAMP (TRAVEL LOCK) J…

Read full complaint

THE SLIDEOUT ROOM RETAINING CLAMPS ("TRAVEL LOCKS") CAUSE A DANGEROUS SITUATION. I WAS HIT, (NEARLY ON THE BACK OF THE HEAD) BY A LOOSE "TRAVEL LOCK" WHICH VIBRATED OUT OF PLACE DUE TO SLIDEOUT ROOM VIBRATION. THERE IS NO _POSITIVE_ MEANS OF SECURING THE CLAMP (TRAVEL LOCK) IN PLACE... ONLY FRICTION. THE CLAMP (TRAVEL LOCK) JUST VIBRATES OUT OF POSITION AS THE SLIDEOUT ROOM VIBRATES WHEN THE COACH TRAVELS DOWN THE ROAD. MONACO DOES NOT PROVIDE INSTRUCTIONS OR DIAGRAM OF SLIDEOUT LOCK INSTALLATION. THE (CLAMP TRAVEL LOCK) WAS INSTALLED AT DELIVERY TO FIT BETWEEN THE METAL FLANGE OF THE SLIDEOUT AND THE WALL. MONACO'S SUGGESTION TO TIGHTEN THE CLAMP ANY MORE WOULD MAKE IT IMPOSSIBLE TO FIT. MONACO'S SUGGESTION TO ADJUST THE LOCK SO IT FITS BETWEEN THE WOOD FASCIA AND WALL IS MEANINGLESS SINCE, AT THE LARGEST ADJUSTMENT, THE CLAMP (TRAVEL LOCK) IS STILL 1 1/2" TOO SHORT. MONACO SHOULD PROVIDE TRAVEL LOCKS WITH A POSITIVE MEANS OF SECURING IN PLACE, NOT JUST FRICTION.*AIK

NHTSA ODI #760064

Mileage unknown · Feb 20, 2002
Equipment

CONSUMER HAS A TEN GALLON GAS OR ELECTRIC ATWOOD WATER HEATER (MODEL # GC10A-32 SERIAL # 941130430) WHEN PUT ON PROPANE WITH THE WIND BLOWING TOWARDS IT, IT TESTED TO 70 PARTS PER MILLION IN 15 MINUTES. *TT

NHTSA ODI #564411

Mileage unknown · Jan 18, 2002
Structure

THE CONSUMER STATED THAT THE LUGGAGE DOOR OPENS WHILE TRAVELING AND THE ENTRY DOOR JAMS. ALSO, THE SEAL ON ENTRY DOOR CAME OFF. THE RUBBER MOLDING HOLDING THE WINDSHIELD POPPED AT UPPER CORNERS ON BOTH SIDES. THE DOOR, SEAL AND WINDSHIELD PROBLEM WAS CAUSED BY THE TWISTING OF THE FRAME. *YH

NHTSA ODI #564035

Mileage unknown · Jul 20, 2001
Visibility

WINDSHIELD SHIFTS OUT OF PLACE AND KEEPS CRACKING. *AK

NHTSA ODI #748796

Official recalls

2

08V257000 · Equipment:recreational Vehicle/trailer

Jun 5, 2008

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.

Consequence & remedy

Consequence: EXTENDED OPERATION OF A LEAKING COOLING UNIT COULD LEAD TO A FIRE FROM GAS WHICH MIGHT ESCAPE.

Remedy: MONACO IS WORKING WITH NORCOLD TO REPAIR THESE REFRIGERATORS. NORCOLD WILL PROVIDE THERMAL SWITCH KITS TO OWNERS ALONG WITH THE NECESSARY FORMS AND INSTRUCTIONS. THE RECALL BEGAN ON AUGUST 29, 2008. OWNERS MAY CONTACT NORCOLD AT 1-800-767-9101 OR MONACO AT 1-800-685-6545.

01V128005 · Seat Belts:front:buckle Assembly

Apr 30, 2001

VEHICLE DESCRIPTION: CLASS A MOTOR HOMES EQUIPPED WITH SAFETY BELT ASSEMBLIES BUILT BY AM-SAFE. ON SOME SEAT BELTS, THE BUCKLE AND CONNECTOR MAY UNLATCH DURING A COLLISION.

Consequence & remedy

Consequence: SERIOUS INJURY OR DEATH COULD OCCUR IF THE VEHICLE OCCUPANT IS NOT PROPERLY RESTRAINED.

Remedy: DEALERS WILL INSPECT THE LAP BELTS AND, IF NECESSARY, REPLACE IT WITH A NEW BELT ASSEMBLY. AM-SAFE IS CONDUCTING THE OWNER NOTIFICATION. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE REMEDY WITHIN A REASONABLE TIME SHOULD CONTACT AM-SAFE AT 219-266-8330 OR MONACO AT 219-862-7211.

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.