1999 Monaco Coach Diplomat Equipment Problems
- Complaints
- 2about this part
- Share
- 20%of 10 total for the year
- Median mileage
- —not reported
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the equipment of the 1999 Monaco Coach Diplomat, 20% of the 10 complaints for this model year. 3 recall campaigns on record are filed under a similar system.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“Recall received for the wrong PSI on the original tag for tire equipment/ vehicle suffered tire blowout. 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 because the vehicle wasn't purchased there. After receiving the recall notice the consumer's rv had a sudden blowout on the right rear tire. …”
NHTSA complaint #10053543, filed 2004-01Related recalls
- 08V257000Jun 5, 2008Monaco is recalling certain motor homes equipped with norcold refrigerators. A fatigue failure in the section of the cooling unit which contains the…Covers: Monaco Coach Diplomat 1999–2002, Holiday Rambler Vacationer 1998–2002, Monaco Coach Dynasty 1998, 2000–2003 +24 more
- 03V386000Oct 10, 2003On 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…Covers: Monaco Coach Diplomat 1999
- 03V166000May 8, 2003On certain motorhomes, fifth wheels and travel trailers equipped with norcold refrigerator cooling units model numbers 1200lr and 1200rim, these refrigerators…Covers: Monaco Coach Diplomat 1998–1999, Executive 1997–1999, Beaver Marquis 1997–1999 +25 more
Equipment: other model years
Other parts of the 1999 Monaco Coach Diplomat
3 complaintsVisibility (wipers, defrost, mirrors)
3 complaintsBrakes
2 complaintsTires
2 complaintsElectrical system
1 complaintsOther or unknown
1 complaintsBody and structure
1 complaintsTransmission and drivetrain
1 complaints
← All problems reported for the 1999 Monaco Coach Diplomat
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology