NHTSA vehicle safety data

2004 Holiday Rambler Neptune Recalls & Complaints

The 2004 Holiday Rambler Neptune has 2 NHTSA recall campaigns and 5 owner complaints on file as of November 3, 2026. Recall repairs are usually free at an authorized Holiday Rambler dealer.

NHTSA recall and complaint data for the 2004 Holiday Rambler Neptune. Recall data is refreshed daily from NHTSA.

2004 Holiday Rambler Neptune owner complaints

Owners have filed 5 complaints with NHTSA about the 2004 Holiday Rambler Neptune, describing incidents dated May 1, 2005 to September 28, 2024.

Most-cited components

Suspension 4 complaints
Engine 1 complaint
Power Train 1 complaint

Newest complaints

ODI #11617838 · Filed October 3, 2024
The contact owns a 2004 Holiday Rambler Neptune built on a Roadmaster chassis. The contact stated while driving approximately 30 MPH, the RV was swaying in the lane and the steering wheel shifted position and was horizontal. The contact stated no warning light was illuminated. The contact stopped…
ODI #10514747 · Filed June 2, 2013
EMBARKED ON A ROAD TRIP AT APPROXIMATELY 9:30 AM AFTER TRAVELING ABOUT 4 MILES THE ENTIRE MOTORHOME WENT INTO A VIOLENT AND SEVERE SWAYING MOTION. I SLOWED THE VEH AND PULLED TO SHOULDER OF THE ROAD, INSPECTED ALL TIRES, NOTHING APPARENT OR OBVIOUS. USED A CREEPER TO INSPECT UNDER VEH SUSPENSION…
ODI #10392196 · Filed March 18, 2011
FOUND BOTH REAR TRAILING ARMS TO BE CRACKED UPON INSPECTION. REPLACED BOTH ARMS TO CORRECT PROBLEM. OLD ARMS WERE CRACKED TO A POINT WHERE TOTAL FAILURE WAS EMINENT. *TR

Read all 5 complaints

TRAILING ARMS/SUSPENSION

NHTSA #05V053000 · Suspension — Rear — Springs — Leaf Spring Assembly · NHTSA notice

Reported February 14, 2005 · MONACO COACH CORPORATION

Potentially affected: 2,827 vehicles

Manufacturer campaign R04062 · Owners notified March 29, 2005 · Vehicles built November 30, 2001 – October 1, 2004 (per NHTSA)

Defect description

ON CERTAIN CLASS A MOTOR HOMES, THE SPACER PLATE UNDER THE TRAILING ARMS HAD A TRANSVERSE WELD WHICH CREATES A HEAT RISER AND CAUSE THE TRAILING ARMS TO CRACK.

Safety consequence

THIS COULD CREATE ROUGH DRIVING CONDITIONS AND DAMAGE TO REAR SUSPENSION SYSTEM. THE DRIVER COULD LOOSE CONTROL OF THE MOTORHOME AND A CRASH COULD OCCUR WITHOUT PRIOR NOTICE.

Manufacturer remedy

DEALERS WILL INSPECT THE REPLACE THE TRAILING ARMS FOR CRACKS AND REPLACING THE TRAILING ARMS AND U-BOLTS IN THE REAR SUSPENSION OF THE MOTORHOMES FREE OF CHARGE. THE RECALL BEGAN ON MARCH 29, 2005. OWNERS MAY CONTACT MONACO AT 1-800-685-6545.

Notes

MONACO RECALL NO. R04062.CUSTOMERS MAY ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S VEHICLE SAFETY HOTLINE AT 1-888-327-4236 (TTY 1-800-424-9153), OR GO TO HTTP://WWW.SAFERCAR.GOV.

MONACO/I-BEAM IMITATOR

NHTSA #04V038000 · Suspension — Front · NHTSA notice

Reported January 28, 2004 · MONACO COACH CORPORATION

Potentially affected: 2,156 vehicles

Manufacturer campaign R03024 · Owners notified March 1, 2004 · Vehicles built February 4, 2002 – October 24, 2003 (per NHTSA)

Defect description

ON CERTAIN MOTORHOMES, THE I-BEAM LEAF IMITATOR IN THE FRONT AXLE SUSPENSION COULD CRACK AND BREAK DUE TO AN INADEQUATE WELDING PROCESS.

Safety consequence

THE I-BEAMS ON THE FRONT AXLE AND THE PANARD BRACKET ON THE REAR AXLE COULD CRACK AND BREAK CAUSING THE DRIVER TO LOSE CONTROL OF THE VEHICLE INCREASING THE RISK OF A CRASH.

Manufacturer remedy

DEALERS WILL REPLACE THE ORIGINAL I-BEAM. ALSO, DEALERS WILL WELD THE STIFFENERS FROM THE PANARD BAR BRACKET TO THE CENTER DIFFERENTIAL OF THE REAR AXLE HOUSING. OWNER NOTIFICATION BEGAN MARCH 1, 2004. OWNERS SHOULD CONTACT MONACO AT 1-877-466-6226.

Notes

MONACO RECALL NO. R03024.CUSTOMERS CAN ALSO CONTACT THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION'S AUTO SAFETY HOTLINE AT 1-888-DASH-2-DOT (1-888-327-4236).

try.vin has no NCAP crash-test rating on file for the 2004 Holiday Rambler Neptune. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

5 owner complaints have been filed with NHTSA for the 2004 Holiday Rambler Neptune.

Suspension; Power Train

ODI #11617838

Incident: September 28, 2024 · Filed: October 3, 2024

The contact owns a 2004 Holiday Rambler Neptune built on a Roadmaster chassis. The contact stated while driving approximately 30 MPH, the RV was swaying in the lane and the steering wheel shifted position and was horizontal. The contact stated no warning light was illuminated. The contact stopped the RV and observed that the rear bumper was almost touching the road surface and the rear passenger side tire was almost touching the wheel well. The contact called an independent mechanic who drove to the location of the RV and examined the RV and determined that the rear suspension and rear axle had fractured and needed to be replaced. The contact had the RV towed to an independent mechanic however, the RV was not diagnosed or repaired. The contact had researched online and related the failure to NHTSA Campaign Number: 05V053000 (Suspension). The manufacturer was informed of the failure. The failure mileage was approximately 86,000.

Suspension

ODI #10514747

Incident: May 29, 2013 · Filed: June 2, 2013

EMBARKED ON A ROAD TRIP AT APPROXIMATELY 9:30 AM AFTER TRAVELING ABOUT 4 MILES THE ENTIRE MOTORHOME WENT INTO A VIOLENT AND SEVERE SWAYING MOTION. I SLOWED THE VEH AND PULLED TO SHOULDER OF THE ROAD, INSPECTED ALL TIRES, NOTHING APPARENT OR OBVIOUS. USED A CREEPER TO INSPECT UNDER VEH SUSPENSION UNABLE TO DETECT A PROBLEM. RESORTED TO INTERNET WITH DESCRIPTION OF INCIDENT AND DISCOVERED A POTENTIAL CAUSE. ARMED WITH INFORMATION GARNERED FROM SEVERAL WEB SITES. THE PROBLEM WAS QUICKLY DETECTED. THE LEFT REAR TRAILING ARM WAS CRACKED, COMPLETELY INTO TWO PIECES AT THE U BOLT AREA IN FRONT OF THE AXEL. I HAVE DRIVEN THIS MOTORHOME OVER 24000 MILES AND MAINTAIN IT WELL. OWNING THIS VEHICLE FOR OVER FIVE YEARS I AM SURPRISED THAT I HAVE NEVER RECEIVED A RECALL NOTICE. MY PRIOR INTERNET INQUIRIES DONE SHORTLY AFTER PURCHASE NEVER INDICATED A PROBLEM. APPARENT THIS INFORMATION IS LEFT TO THE OWNER TO FIND OUT ON THEIR OWN AT THE RISK OF PERIL TO ANYONE ON THE HIGHWAY THAT HAPPENED TO BE NEAR AN INCIDENT. *TR

Suspension

ODI #10392196

Incident: March 6, 2010 · Filed: March 18, 2011

FOUND BOTH REAR TRAILING ARMS TO BE CRACKED UPON INSPECTION. REPLACED BOTH ARMS TO CORRECT PROBLEM. OLD ARMS WERE CRACKED TO A POINT WHERE TOTAL FAILURE WAS EMINENT. *TR

Engine and Engine Cooling

ODI #10208091

Incident: September 6, 2007 · Filed: November 6, 2007

WITH ONLY 14,000 MILES ON VEHICLE THE ALUMINUM RADIATOR BEGAN LEAKING WHERE THE CORE IS ATTACHED TO THE TANK. MANUFACTURE HAS SINCE REPLACED ALUMINUM WITH STEEL RADIATORS BUT WOULD NOT AGREE TO PAY FOR ANY OF THE REPLACEMENT SINCE THE WARRANTY TIME HAS EXPIRED. I HAVE TALKED TO OTHER PEOPLE WITH THE SAME TYPE OF MOTOR HOME THAT ARE HAVING LEAKS ALSO. I FEEL THIS IS A TREND AND MAYBE SHOULD BE INVESTIGATED FOR INSTALLING FAULTY RADIATORS IN THESE UNITS. RADIATORS SHOULD LAST LONGER THAN 14,000 MILES. *TR

Suspension

ODI #10121563

Incident: May 1, 2005 · Filed: May 12, 2005

CONSUMER LETTER REGARDING VEHICLE SAFETY DEFECT SERVICE BULLETIN RECALL CAMPAIGN 05V053000. *MR

Other Holiday Rambler Neptune model years

Check your 2004 Holiday Rambler Neptune VIN

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