NHTSA vehicle safety data
1998 Monaco Coach Diplomat Recalls & Complaints
The 1998 Monaco Coach Diplomat has 3 NHTSA recall campaigns and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Monaco Coach dealer.
NHTSA recall and complaint data for the 1998 Monaco Coach Diplomat. Recall data is refreshed daily from NHTSA.
1998 Monaco Coach Diplomat owner complaints
Owners have filed 1 complaint with NHTSA about the 1998 Monaco Coach Diplomat, describing incidents dated July 23, 2001.
Most-cited components
- Visibility/Wiper 1 complaint
Newest complaints
ODI #8010424 · Filed
CONSUMER STATES THE WINDSHEILD WENT OFF TRACK AND LEFT A LARGE OPENNING IN THE WINDSHEILD. TOOK TO DEALERSHIP TO HAVE WINDSHEILD RE-SET, PROBLEM HAPPENED AGAIN.*JB
MONACO/REFRIGERATOR COOLING UNIT FIRE
NHTSA #03V166000 · Equipment — Recreational Vehicle/Trailer · NHTSA notice
Reported May 8, 2003 · MONACO COACH CORP.
Defect description
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.
Safety 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.
Manufacturer 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.
Notes
ALSO, CUSTOMERS CAN CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
MONACO/CERTIFICATION LABEL/PSI INCORRECT
NHTSA #03V102000 · Equipment — Other — Labels · NHTSA notice
Reported March 17, 2003 · MONACO COACH CORP.
Potentially affected: 221 vehicles
Monaco Coach campaign R03008 · Owners notified April 28, 2003 · Vehicles built January 1, 1997 – June 30, 1999 (per NHTSA)
Defect description
ON CERTAIN MOTOR HOMES, THE PSI RECORDED ON THE FEDERAL CERTIFICATION LABEL IS INCORRECT. THE INITIAL LABEL SHOWS PSI AS 90 LBS FRONT AND 100 REAR. THE CORRECT INFORMATION SHOULD BE A PSI OF 105 FRONT AND 115 REAR.
Safety consequence
THESE VEHICLES DO NOT COMPLY WITH THE REGULATIONS.
Manufacturer remedy
DEALERS WILL INSTALL A CORRECTED LABEL ON THESE MOTOR HOMES. OWNER NOTIFICATION BEGAN ON APRIL 28, 2003. OWNERS WHO TAKE THEIR VEHICLES TO AN AUTHORIZED DEALER ON AN AGREED UPON SERVICE DATE AND DO NOT RECEIVE THE FREE LABEL WITHIN A REASONABLE TIME SHOULD CONTACT MONACO AT 1-877-466-8226.
Notes
MONACO RECALL NO. R03008. CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
MONACO/FUEL TANK FASTENERS
NHTSA #98V232000 · Fuel System, Gasoline — Storage — Tank Assembly — Mounting · NHTSA notice
Reported September 18, 1998 · MONACO COACH CORP.
Potentially affected: 398 vehicles
Owners notified October 30, 1998 · Vehicles built November 1, 1997 – May 28, 1998 (per NHTSA)
Defect description
VEHICLE DESCRIPTION: MOTOR HOMES BUILT ON A ROADMASTER CHASSIS. INADEQUATE BRACING WAS USED TO SECURE THE FUEL TANK. THE BRACE COULD FAIL ALLOWING ONE END OF THE FUEL TANK TO LOOSEN FROM ITS POSITION AND HANG LOWER THAN THE OTHER END.
Safety consequence
THE FUEL TANK COULD EVENTUALLY SEPARATE FROM THE VEHICLE AND DROP TO THE GROUND, INCREASING THE RISK OF PERSONAL INJURY OR A VEHICLE CRASH.
Manufacturer remedy
DEALERS WILL INSTALL AN ADDITIONAL BRACE UNDER THE FUEL TANK.
Notes
OWNER NOTIFICATION BEGAN OCTOBER 30, 1998.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 MONACO AT 1-800-685-6545.ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).
Other Monaco Coach Diplomat model years
Check your 1998 Monaco Coach Diplomat VIN
Not every recall applies to every VIN in a given year. Enter the 17-character VIN from your Monaco Coach Diplomat at nhtsa.gov/recalls to see whether your specific vehicle has an unrepaired recall.
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