The 2001 Monaco Coach Diplomat has 4 NHTSA recall campaigns affecting an estimated 17,894 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 11 complaints with NHTSA, most often about the equipment. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT08V2570002008-06-058,587 affected
Defect
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.
Consequence
EXTENDED OPERATION OF A LEAKING COOLING UNIT COULD LEAD TO A FIRE FROM GAS WHICH MIGHT ESCAPE.
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 NORCOLD AT 1-800-767-9101 OR MONACO AT 1-800-685-6545.
SERVICE BRAKES, AIR02V0130012002-01-075,956 affected
Defect
ON CLASS A MOTOR HOMES BUILT WITH A STEERABLE AUXILIARY AXLE AND EQUIPPED WITH CERTAIN MERITOR-WABCO BRAKE SYSTEM TWO AND FOUR PORT RELAY VALVES, THE VALVE MAY STICK OPEN WHEN A HIGH-PRESSURE BRAKE APPLICATION IS RELEASED.
Consequence
WHEN THE VALVE STICKS OPEN, IT CAN RESULT IN A TOTAL LOSS OF AIR FROM EITHER THE SERVICE OR THE PARK BRAKE SYSTEM. THE DRIVER MAY LOSE BRAKING ABILITY UNDER A SERVICE APPLICATION, POSSIBLY RESULTING IN A VEHICLE CRASH.
Remedy
DEALERS WILL REPLACE THESE VALVES. MERITOR WABCO IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. 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 MERITOR WABCO AT 800-535-5560 OR…
SEAT BELTS01V1280052001-04-303,320 affected
Defect
VEHICLE DESCRIPTION: CLASS A MOTOR HOMES EQUIPPED WITH SAFETY BELT ASSEMBLIES BUILT BY AM-SAFE. ON SOME SEAT BELTS, THE BUCKLE AND CONNECTOR MAY UNLATCH DURING A COLLISION.
Consequence
SERIOUS INJURY OR DEATH COULD OCCUR IF THE VEHICLE OCCUPANT IS NOT PROPERLY RESTRAINED.
Remedy
DEALERS WILL INSPECT THE LAP BELTS AND, IF NECESSARY, REPLACE IT WITH A NEW BELT ASSEMBLY. AM-SAFE IS CONDUCTING THE OWNER NOTIFICATION. 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 AM-SAFE AT…
EQUIPMENT00V2970002000-10-1131 affected
Defect
VEHICLE DESCRIPTION: CLASS A MOTOR HOMES PRODUCED ON ROADMASTER CHASSIS. A 12VDC 50 AMP MINI-BREAKER ON THE REFRIGERATOR SUPPLY WIRE RATHER THAN A 12 VDC 30 AMP BREAKER.
Consequence
THE SUPPLY WIRE COULD OVERHEAT, WHICH WOULD THEREBY CREATE A RISK OF FIRE.
Remedy
DEALERS WILL REPLACE THE 12VDC 50 AMP BREAKER WITH A 12VDC 30 AMP BREAKER.
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“Windshield popping out, toilet leaking, power inverter not working properly,front jacks leaking, muffler falling off, skylight over shower leaking. *jb”
“Windshield popping out, toilet leaking, power inverter not working properly,front jacks leaking, muffler falling off, skylight over shower leaking. *jb”
“Windshield popping out, toilet leaking, power inverter not working properly,front jacks leaking, muffler falling off, skylight over shower leaking. *jb”
“*dt: the contact stated the left driver's side window had poor visibility due to a separation of the double panel glass. He contacted the manufacturer, and they offered no assistance. This is a 2001, monaco, diplomat rv. *ak updated 12/27/2005 - the consumer explained that the glass was cloudy,…”
“Dt*: the contact stated while the driver of the coach was driving at 45 mph the right rear outer tire blew out, immediately afterwards the left rear tire blew. This caused the driver to lose control of the coach. The coach went up on an embankment. The passenger in the coach was not wearing a seat…”
“Dt*: the contact stated while the driver of the coach was driving at 45 mph the right rear outer tire blew out, immediately afterwards the left rear tire blew. This caused the driver to lose control of the coach. The coach went up on an embankment. The passenger in the coach was not wearing a seat…”
“Dt*: the contact stated while the driver of the coach was driving at 45 mph the right rear outer tire blew out, immediately afterwards the left rear tire blew. This caused the driver to lose control of the coach. The coach went up on an embankment. The passenger in the coach was not wearing a seat…”
“There is a constant propane smell inside vehicle. Vehicle has been taken to dealer 5 times, water heater burner and relay were replaced. But consumer can still smell the propane.*ak”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2001 Monaco Coach Diplomat as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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