2000 Monaco Coach Diplomat: Reliability Data

Source: NHTSA — 27 complaints
27
Total Complaints
24,184mi
Median Mileage
STRUCTURE
Top Issue
1
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

16,000 25th Percentile
24,184 Median Mileage
32,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

STRUCTURE
5
ELECTRICAL SYSTEM
4
STRUCTURE:FRAME AND MEMBERS
3
VISIBILITY:WINDSHIELD
2
ELECTRICAL SYSTEM:STARTER ASSEMBLY:RELAY
2
UNKNOWN OR OTHER
2
EQUIPMENT:RECREATIONAL VEHICLE/TRAILER:LPG SYSTEMS:WATER HEATER
2
EQUIPMENT:MECHANICAL:SLIDE-IN CAMPER
1
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
1
SUSPENSION
1

Severity Assessment

1
Crashes
2
Fires
1
Injuries
0
Deaths

Sample Complaint Reports

"WHILE DRIVING AND WITHOUT ANY WARNING MOTORHOME JUST DIED. MOTORHOME WAS TOWED TO DEALERSHIP. DEALERSHIP REPLACED TWO ELECTRICAL PARTS. THE DELAER WAS NOT SURE WHAT CAUSED THE PROBLEM. PLEASE PROVIDE ANY FURTHER INFORMATION*AK."
"THE MOTORHOME IS EQUIPPED WITH A SLIDE OUT THAT CONTAINS A LOCKING DEVICE TO SECURE DURING TRAVEL, HOWEVER THE DESIGN AND INSTALLATION WERE BOTH INADEQUATE RESULTING IN THE RELEASE OF THE SLIDE OUT WHILE CONSUMER WAS TRAVELING, CONSUMER INSTALLED ANOTHER ADDITIONAL LOCKING DEVICE TO SECURE PROPERLY...."
"DURING TRAVEL THE EXPANDING ROOM SLIDE DOOR LOCK SLID ACROSS THE SURFACE AND FELL TO THE FLOOR ALMOST STRIKING OCCUPANT, SERVICE TECH STATED IT WAS NOT INSTALLED CORRECTLY AND HE REINSTALLED THE LOCK ON THE VERTICAL SURFACE BEHIND HE DRIVERS SEAT, THE LOCK FELL OUT AGAIN. NLM"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28