The 1999 Monaco Coach Diplomat has 3 NHTSA recall campaigns affecting an estimated 9,475 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 22 complaints with NHTSA, most often about the tires. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT08V2570002008-06-058,587 affected
Defect
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
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.
EQUIPMENT03V3860002003-10-10888 affected
Defect
ON CERTAIN MOTOR HOMES, THE FEDERAL IDENTIFICATION TAG ON BOTH 36' AND 38' MODELS WAS INCORRECT. THE INITIAL TAG SHOWS THE PSI AS 90 LBS. FRONT AND 100 LBS. REAR. THE CORRECT PSI IS 105 FRONT AND 115 REAR. ALSO, THE FEDERAL IDENTIFICATION TAG ON CERTAIN UNITS INCORRECTLY STATES THAT THE UNIT WAS BUILT WITH A TAG…
Consequence
DRIVING THE MOTOR HOME WITH UNDER/OVER INFLATED TIRES CAN CAUSE OR CONTRIBUTE TO PREMATURE TIRE FAILURE, POSSIBLY RESULTING IN A SUDDEN BLOWOUT OR OTHER FAILURE THAT COULD RESULT IN THE LOSS OF CONTROL OF THE MOTOR HOME.
Remedy
OWNERS WILL BE PROVIDED WITH A CORRECT FEDERAL IDENTIFICATION TAG AND INSTALLATION INSTRUCTIONS. OWNER NOTIFICATION BEGAN OCTOBER 24, 2003. OWNERS SHOULD CONTACT MONACO AT 1-800-685-6545.
EQUIPMENT03V1660002003-05-08
Defect
ON CERTAIN MOTORHOMES, FIFTH WHEELS AND TRAVEL TRAILERS EQUIPPED WITH NORCOLD REFRIGERATOR COOLING UNITS MODEL NUMBERS 1200LR AND 1200RIM, THESE REFRIGERATORS CAN EXPERIENCE LOW CYCLE FATIGUE FAILURE WHICH CAN LEAD TO THE LIQUID SOLUTION SLOWLY LEAKING FROM THE SEALED, PRESSURIZED COOLING UNIT THROUGH A SMALL CRACK.
Consequence
IF A LEAK OCCURS AND THE UNIT IS CONTINUALLY OPERATED, HYDROGEN GAS MAY BE EXPELLED AND CAN BE IGNITED, RESULTING IN A FIRE, POSSIBLY CAUSING SERIOUS INJURY OR DEATH.
Remedy
NORCOLD WILL NOTIFY ITS CUSTOMERS AND PROVIDE A REPLACEMENT COOLING UNIT FREE OF CHARGE. 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 NORCOLD SERVICE CENTER AT 1-800-667-3005 OR MONACO AT 574-862-7211.
Complaints by component
TIRES
3
VISIBILITY:WINDSHIELD
3
ELECTRICAL SYSTEM:WIRING
1
EQUIPMENT
1
EQUIPMENT:MECHANICAL:SLIDE-IN CAMPER
1
EQUIPMENT:OTHER:LABELS
1
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER
1
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY
1
FUEL SYSTEM, GASOLINE:CARBURETOR SYSTEM
1
FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY
1
Total complaints22
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Tl*the contact owns a 1999 monaco coach diplomat rv. The contact stated that the rv has a fungus infection named coprinus basidiomycetes mold, which is detrimental to his health. The mold has infected the entire rv and has circulated in the air and the carpet. An expert inspected the vehicle and…”
“While driving 65 mph, the air dryer on the air brakes had blown apart which caused the brakes to lose power. The driver was able to avoid a collision and the motor home was towed to the residence. *ak *scc *jb”
“Recall received for the wrong psi on the original tag for tire equipment/ vehicle suffered tire blowout.*mr the consumer received recall 03v386000 which indicated that the wrong psi was put on the original id tag. The consumer contacted the local dealer but they refused to handle the recall…”
“Recall received for the wrong psi on the original tag for tire equipment/ vehicle suffered tire blowout.*mr the consumer received recall 03v386000 which indicated that the wrong psi was put on the original id tag. The consumer contacted the local dealer but they refused to handle the recall…”
“Fuel tank leak. *jb”
“Consumer states that tire is having bad riveting problems, while driving tire experienced a blowout, almost causing consumer to lose control, the tire also blewout left front air bag and damaged the vehicle, goodyear g159, 225/70r22.5, dot mc55. *slc”
“Consumer states that tire is having bad riveting problems, while driving tire experienced a blowout, almost causing consumer to lose control, the tire also blewout left front air bag and damaged the vehicle, goodyear g159, 225/70r22.5, dot mc55. *slc”
“Windshield has poor visibilty. Dealer has been contacted for problem, and labeled it unsafe. Please provide further details.*ak”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 1999 Monaco Coach Diplomat as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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