NHTSA lists 4 complaints for the 2006 Monaco Coach Diplomat, 0 of them mention a crash and 0 mention a fire. 0 complaints mention an injury, with 0 injuries and 0 deaths reported.
Data build 2026-10-09.
NHTSA lists this vehicle as MONACO COACH DIPLOMAT.
At a glance
Complaints
4
With crash
0
With fire
0
With injury (complaints)
0
Injuries
0
Deaths
0
Recalls
3
Do not drive recalls
0
Park outside recalls
0
Recall potential units (maximum)
1,733
Investigations
0
Open investigations
0
Manufacturer communications
1
Complaints per 100k sold unavailable. No sales source is available for this record.
Where the complaints are
Top systems
System
Complaints
Share of this vehicle's complaints
ENGINE AND ENGINE COOLING
3
75.0%
FUEL SYSTEM, GASOLINE
1
25.0%
STRUCTURE
1
25.0%
Top subsystems
System
Subsystem
Complaints
ENGINE AND ENGINE COOLING
ENGINE
2
FUEL SYSTEM, GASOLINE
FUEL INJECTION SYSTEM
1
STRUCTURE
FRAME AND MEMBERS
1
One complaint can name several systems, so shares can add to more than 100 percent.
Model-generated complaint tags: This model year has not been tagged.
Defect: MONACO IS RECALLING 1,733 MY 2006-2007 DIPLOMAT AND HOLIDAY RAMBLER ENDEAVOR MOTOR HOMES EQUIPPED WITH WIPER SYSTEMS SUPPLIED BY AM EQUIPMENT. THE DRIVE MOTOR LINK BECOMES DISENGAGED DURING OPERATION FROM THE WIPER DRIVE ARM WHERE IT ATTACHES TO THE DRIVE ARM CAUSING THE WIPER SYSTEM TO FAIL.
Consequence: WHEN THE WIPER SYSTEM FAILS, THE OPERATOR WILL HAVE REDUCED VISIBILITY WHICH COULD RESULT IN A CRASH.
Remedy: MONACO WILL REPLACE THE COMPLETE UNDER-THE-HOOD WIPER SYSTEM WITH A NEW MODEL, REUSING THE WIPER ARM AND BLADES. THE RECALL BEGAN ON MARCH 11, 2008. OWNERS MAY CONTACT MONACO AT 1-800-685-6545.
Date: 2007-07-20. Systems: ENGINE AND ENGINE COOLING.
Defect: ON CERTAIN MOTOR HOMES BUILT WITH CUMMINS ISL CM850 DIESEL ENGINES, THE CONNECTING ROD CONTAINS A MACHINING DEFECT IN THE WRIST PIN BUSHING OF THE ROD THAT COULD CAUSE A SEIZURE OF THE PISTON PIN. (excerpt)
Consequence: IF ALLOWED TO PROGRESS, THIS CAN LEAD TO ENGINE FAILURE WITH THE POSSIBILITY OF THE ROD RUPTURING THE LOCK CAVITY, OIL AND DEBRIS ON THE ROADWAY AND VEHICLE CRASH. (excerpt)
Remedy: MONACO IS WORKING WITH CUMMINS TO RECALIBRATE THE ENGINE CONTROL MODULE AND ENHANCE THE ENGINE PROTECTION SYSTEM ENABLING IT TO PROVIDE EARLY DETECTION OF THE FAILURE MODE AND AVOID MORE SERIOUS ENGINE DAMAGE AND RESULTANT SAFETY HAZARD. CUMMINS WILL ALSO INSTALL A NEW VALVE COVER WITH A CRANKCASE PRESSURE SENSOR FREE OF CHARGE (PLEASE SEE 07E033). OWNERS MAY CONTACT CUMMINS AT 800-343-7357 OR M (excerpt)
Defect: ON CERTAIN MOTOR HOMES, THE HEADLIGHT SWITCH IN THE FRONT ELECTRICAL BOX/FIREWALL CAN OVERLOAD.
Consequence: CHANGES IN THE COMPONENT SUPPLIER RELAY REQUIREMENTS WITH AN UPDATED CONTROLLER WERE CAUSING THE HEADLIGHTS TO STOP FUNCTIONING WITHOUT WARNING. THIS COULD POTENTIALLY CAUSE A CRASH WHILE DRIVING AT NIGHT.
Remedy: DEALERS WILL INSTALL A NEW WIRING HARNESS. THE RECALL BEGAN ON SEPTEMBER 30, 2005. OWNERS MAY CONTACT MONACO AT 1-800-685-6545.
Do not drive: No. Park outside: No.
Investigations
0 investigations; 0 open.
Manufacturer communications
1 manufacturer communications.
Communications by system
System
Count
ENGINE AND ENGINE COOLING
1
FUEL SYSTEM, GASOLINE
1
10025621
Date: 2008-05-05. Type: Service Bulletin/Repair Instructions. Systems: ENGINE AND ENGINE COOLING, FUEL SYSTEM, GASOLINE.
MONACO COACH CORPORATION HAS BEEN ADVISED THAT CUMMINS INC. HAS INITIATED A SERVICE CAMPAIGN BULLETIN C0805 PERTAINING TO CERTAIN ISC AND ISL ENGINES. *PE
Notes on this record
Complaints from the API and bulk file are merged and deduplicated by ODI number; the API alone misses records.
System and subsystem counts are numbers of distinct complaints, recalls or communications that name them. One record can name several systems, so shares across systems can add to more than 100 percent; a single share never exceeds 100 percent.
Recalls are counted once per campaign, investigations once per action and manufacturer communications once per NHTSA id, even when NHTSA lists several model names for the same record.
A sales denominator is a calendar-year proxy, not the population of vehicles still in use. Rates are copied from verified pipeline output.