1999 Monaco Coach Diplomat Recalls, Complaints & Specs
3 safety recalls list the 1999 Monaco Coach Diplomat, and owners have filed 10 complaints with NHTSA. Check your own VIN below.
3 safety recalls for the 1999 Monaco Coach Diplomat
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Recreational vehicle/trailer (equipment)
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.
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…
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Labels (equipment)
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 axle.
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.
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Recreational vehicle/trailer (equipment)
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.
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…
10 owner complaints filed with NHTSA
Owners of the 1999 Monaco Coach Diplomat have filed 10 complaints with NHTSA. The average mileage at failure in those reports is 38,219 miles. Complaints peaked in 1999 with 2 filed that year.
Most-reported components
What owners are reporting
“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”
Owner complaint to NHTSA, August 10, 2009 · Unknown or other
“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 ori”
Owner complaint to NHTSA, January 5, 2004 · Tires
Compare Monaco Coach Diplomat model years
Recall and complaint counts for every Monaco Coach Diplomat model year in NHTSA's database.
Checking a specific 1999 Monaco Coach Diplomat
How do I know if my 1999 Monaco Coach Diplomat has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 3 campaigns currently list the 1999 Monaco Coach Diplomat; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised Monaco Coach dealer with your VIN and the NHTSA campaign number (for example 03V166000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other Monaco Coach models
- Knight54 complaints
- Cayman40 complaints
- Monaco33 complaints
- Lapalma30 complaints
- Dynasty25 complaints
- Windsor21 complaints
- Signature13 complaints
- Camelot7 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.