The 2004 Newmar Mountain Aire has 11 NHTSA recall campaigns affecting an estimated 46,867 vehicles. Recall repairs are always free at any authorized dealer. Owners have filed 7 complaints with NHTSA, most often about the service brakes, hydraulic. Last updated July 5, 2026.
Recall campaigns
EQUIPMENT17V8090002017-12-1534,699 affected
Defect
Newmar Corporation (Newmar) is recalling various 1995-2018 motorhomes. A list of the affected vehicles available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V809-2309.pdf. These motorhomes are equipped with Kidde Plastic-Handle or Push Button 'Pindicator' Fire Extinguishers that may become clogged, preventing…
Consequence
In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.
Remedy
Newmar will notify owners, and instruct them to contact Kidde for a replacement fire extinguisher, free of charge. The recall began on February 7, 2018. Owners may contact Kidde customer service toll-free at 1-855-262-3540, or online at www.kidde.com and click on "Product Safety Recall" for more information or…
STEERING15V8290002015-12-091,920 affected
Defect
Newmar Corporation (Newmar) is recalling certain model year 1997-2005 Dutch Star and Mountain Aire, 1998-1999 London Aire, 2004 Essex and 1997-1998 Kountry Aire motorhomes. The affected vehicles have a steering gear mounting bracket that may crack, causing a loss of steering ability.
Consequence
A loss of steering increases the risk of a crash.
Remedy
Newmar will notify owners, and Spartan dealers will replace the steering gear mounting brackets, free of charge. The recall began on January 4, 2016. Owners may contact Newmar customer service at 1-800-731-8300 or Spartan customer service at 1-800-543-4277. Newmar's number for this recall is 15V 633.
EQUIPMENT10V4340002010-09-22435 affected
Defect
NEWMAR IS RECALLING CERTAIN RECREATIONAL TRAILERS EQUIPPED WITH DIMPLEX ELECTRAFLAME, SYMPHONY, OR OPTIFLAME BRANDED ELECTRIC FIREPLACES, STOVES, AND FIREPLACE INSERTS. THE PLUG IN REMOTE CONTROL RECEIVER FOR THE FIREPLACE CAN OVERHEAT.
Consequence
AN OVERHEATED RECEIVER COULD CAUSE A FIRE.
Remedy
NEWMAR IS WORKING WITH DIMPLEX AND DIMPLEX WILL PROVIDE OWNERS A FREE REPLACEMENT PLUG-IN REMOTE CONTROL KIT. THE SAFETY RECALL BEGAN ON APRIL 6, 2011. OWNERS MAY CONTACT DIMPLEX NORTH AMERICA CUSTOMER SERVICE AT 1-888-346-7539.
SERVICE BRAKES, HYDRAULIC09V2170002009-06-112,578 affected
Defect
NEWMAR IS RECALLING 2,578 MOTORHOMES EQUIPPED WITH AXLES THAT INCLUDE BOSCH ZOPS OR ZOHT PIN SLIDE HYDRAULIC DISC BRAKES. WHEN COMBINED WITH OCCASIONAL OR SEASONAL VEHICLE OPERATION MAY EXPERIENCE CALIPERS STICKING IN THE APPLIED POSITION. THIS CAN RESULT IN ABNORMAL HEAT GENERATION AT THE WHEEL END CAUSING BRAKE…
Consequence
THE DRIVER WOULD NORMALLY DETECT THE BRAKE DRAG BUT IF UNDETECTED THE TEMPERATURE INCREASE AT THE WHEEL END CAN EVENTUALLY LEAD TO SOFT PEDAL CONDITIONS DUE TO BRAKE FLUID BOIL, AND POSSIBLE EXTENDED STOPPING DISTANCE INCREASING THE RISK OF A CRASH.
Remedy
DEALERS WILL INSPECT AND REPLACE THE NECESSARY COMPONENTS FREE OF CHARGE. WORKHORSE IS HANDLING THE REMEDY AND OWNER NOTIFICATION FOR THIS CAMPAIGN PLEASE SEE 09V-110. OWNERS MAY CONTACT WORKHORSE AT 1-877-246-7731.
EQUIPMENT08V3660002008-07-172,192 affected
Defect
NEWMAR IS RECALLING 772 MY 2004-2005 AMERICAN STAR, KOUNTRY AIRE, MOUNTAIN AIRE, MY 2003-2006 KOUNTRY STAR, MY 2007 X-AIRE FIFTH WHEEL TRAILERS; MY 2007 BAY STAR, MY 2004-2007 KOUNTRY STAR, MY 2004-2006 MOUNTAIN AIRE, MY 2003-2005 SCOTTSDALE CLASS A MOTOR HOMES; AND MY 2004-2006 DUTCH STAR, MY 2003-2006 KOUNTRY STAR,…
Consequence
IF THIS SOLUTION IS EXPOSED TO AN IGNITION SOURCE UNDER CERTAIN SPECIFIC CIRCUMSTANCES, IT CAN RESULT IN A VEHICLE FIRE.
Remedy
NEWMAR IS WORKING WITH DOMETIC TO REPAIR THESE REFRIGERATORS (PLEASE SEE 08E032). DOMETIC WILL REPAIR THESE REFRIGERATORS BY INSTALLING A SECONDARY BURN HOUSING, A THERMAL FUSE, AND A MELT FUSE FREE OF CHARGE. DOMETIC HAS RETAINED STERICYCLE INC. TO MANAGE THIS CAMPAIGN. STERICYCLE WILL ASSIST THE OWNER IN…
STEERING08V0150002008-01-11126 affected
Defect
CERTAIN MOTOR HOME CHASSIS BUILT ON FREIGHTLINER VCL OR XC CHASSIS AND EQUIPPED WITH ZF MODEL 8018 STEERING GEARS, THESE GEARS MAY HAVE BEEN ASSEMBLED WITH THE INCORRECT RECIRCULATING BALL SPACER. THIS COULD POTENTIALLY ALLOW THE RECIRCULATING BALLS TO ESCAPE FROM THE RECIRCULATING BALL CIRCUIT RESULTING IN A LOSS…
Consequence
THE OPERATOR MAY NOTICE HIGHER REQUIRED STEERING WHEEL INPUTS, OR THE NEED FOR MORE STEERING WHEEL ADJUSTMENTS WHILE DRIVING IN A STRAIGHT LINE IN COMBINATION WITH METALLIC CRACKING NOISES PRIOR TO A LOSS OF STEERING. LOSS OF STEERING COULD RESULT IN A VEHICLE CRASH.
Remedy
FREIGHTLINER IS CONDUCTING THIS RECALL (PLEASE SEE 07V-343) AND WILL REPLACE THE STEERING GEAR FREE OF CHARGE. OWNERS MAY CONTACT FREIGHTLINER AT 1-800-547-0712 OR NEWMAR AT 574-773-7791.
SERVICE BRAKES, AIR05V2630002005-06-022,127 affected
Defect
ON CERTAIN MOTOR HOMES EQUIPPED WITH AMETEK NGI GAUGES, THE AIR GAUGES ARE NOT PROPERLY CALIBRATED AND THE LOW AIR WARNING INDICATOR MAY BE ACTIVATED WHEN ACTUAL AIR RESERVOIR PRESSURE READINGS ARE BELOW THE FEDERAL MOTOR VEHICLE SAFETY STANDARD REQUIRED RANGE OF 60 TO 65PSI.
Consequence
THIS MAY CAUSE THE PARKING BRAKE TO ENGAGE WITHOUT WARNING, THUS THROWING THE PASSENGER FORWARD, CREATING THE POTENTIAL FOR INJURY TO OCCUPANTS.
Remedy
SPARTAN IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. DEALERS WILL INSTALL A HARNESS JUMPER CABLE TO EACH AIR SENDER. OWNERS MAY CONTACT SPARTAN AT 800-543-4277 OR NEWMAR AT 574-773-7719.
EQUIPMENT05V1700002005-04-25935 affected
Defect
ON CERTAIN CLASS A MOTOR HOMES EQUIPPED WITH VEHICLE SYSTEMS' AQUA-HOT AND HYDRO-HOT WATER HEATERS, WHICH ARE EQUIPPED WITH WEBASTO BURNER TUBES, THE BURNER TUBES DO NOT MEET SPECIFICATIONS AND COULD FAIL PREMATURELY.
Consequence
SHOULD THE BURNER TUBE FAIL, THE COOLANT HEATER COULD OVERHEAT, POSSIBLY RESULTING IN A FIRE.
Remedy
VEHICLE SYSTEMS IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. OWNERS MAY CONTACT VEHICLE SYSTEMS AT 1-800-685-4298 OR NEWMAR AT 574-773-7719.
CERTAIN CLASS A MOTOR HOMES BUILT ON WORKHORSE CHASSIS FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD (FMVSS) NO. 101, "CONTROLS AND DISPLAY" AND STANDARD NO. 105 "HYDRAULIC AND ELECTRIC BRAKE SYSTEMS." MODELS WITH ACTIA INSTRUMENT CLUSTER, THE INCORRECT SOFTWARE PROGRAMMED INTO THE…
Consequence
INCORRECT SOFTWARE MAY NOT HAVE THE ABILITY TO ILLUMINATE WARNING LAMPS INDICATING BRAKE SYSTEM FAILURES. THE STANDARDS REQUIRE DRIVER WARNING WHEN BRAKE FAILURE CODES ARE SET.
Remedy
WORKHORSE IS CONDUCTING THE OWNER NOTIFICATION AND REMEDY FOR THIS CAMPAIGN. OWNERS MAY CONTACT WORKHORSE AT 1-877-294-6773 OR NEWMAR AT 574-773-7719.
SEAT BELTS04V2440002004-05-1884 affected
Defect
CERTAIN SEAT BELT BUCKLES ON SOME MOTOR HOMES FAIL TO CONFORM TO THE LOAD REQUIREMENT OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 209, "SEAT BELT ASSEMBLIES."
Consequence
THE SEAT BELT BUCKLE MAY UNLATCH IN THE EVENT OF A VEHICLE CRASH, POSSIBLY RESULTING IN PERSONAL INJURY TO THE SEAT OCCUPANT.
Remedy
AMSAFE WILL NOTIFY CUSTOMERS AND REPLACE THE BUCKLES. THE RECALL BEGAN MAY 28, 2004. OWNERS SHOULD CONTACT AMSAFE AT 1-574-266-8330 OR NEWMAR AT 1-574-773-7791.
SUSPENSION03V3690002003-10-0333 affected
Defect
ON CERTAIN MOTORHOMES EQUIPPED WITH TUTHILL INDEPENDENT FRONT SUSPENSIONS, THE DEFECT IS INSUFFICIENT TIGHTENING TORQUE OF THE STEERING KNUCKLE CARRIER BOLT THAT MAY RESULT IN SEPARATION OF THE STEERING KNUCKLE FROM ONE OF THE CONTROL ARMS.
Consequence
SHOULD THE STEERING KNUCKLE CARRIER SEPARATE FROM THE CONTROL ARM, THE OPERATOR COULD LOOSE CONTROL OF THE VEHICLE, POSSIBLY RESULTING IN A CRASH.
Remedy
TUTHILL WILL NOTIFY ITS CUSTOMERS AND PROVIDE A RETROFIT KIT P/N K704627 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 TUTHILL TRANSPORT TECHNOLOGIES AT 800-225-7824 (EXT. #390),…
Complaints by component
SERVICE BRAKES, HYDRAULIC
2
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:ROTOR
2
SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS
1
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC
1
UNKNOWN OR OTHER
1
Total complaints7
What owners report
Verbatim reports filed with NHTSA, lightly edited for readability and with personal
information removed.
“In the spring of 2016, we had taken a trip from home to lake wright-patman about 80 miles away. Upon arriving at our camping space, we noticed the top of the windshields were bulging out from the roof. We covered the roof and top of the windshields with a tarp to prevent rain from coming into the…”
“Tl* the contact owns a 2004 newmar mountain aire on a w22 workhorse chassis. The contact stated while driving 60 mph the abs light came on and the brakes began to malfunction causing the vehicle to have shorter stopping distance. The contact called the manufacturer regarding the brakes and they…”
“Tl*the contact owns a 2004 newmar mountain aire rv. The contact took the vehicle to a dealer for routine inspection and was informed that the brake rotors, calipers, and hubs failed abnormally and needed to be replaced. A representative stated that the vehicle's production year was excluded from…”
“Motorhome in for front end alignment at 39k miles and found all four of my brake rotor had severe cracks, some completely through the rotor. All brake components on all wheels required replacement, rotors, calipers, pads etc. *tr”
“Failure of workhorse custom chassis hydro max (redundant brake system) due to blown brake light fuse. The power assist for the braking system is run off the power steering pump and should you lose the serpentine belt or the engine shuts down there is a redundant electric motor to provide power…”
“Tl*the contact owns a 2004 newmar mountain aire, model number 3778. When the contact took her vehicle in for scheduled maintenance, the dealer stated that all four rotors were cracked on the outside. The dealer stated that the failures were caused by heat. The technician stated that they have…”
“Tl* the contact owns a 2004 newmar mountain aire rv. The contact had taken the vehicle to an authorized dealer for a routine maintenance. The technician observed during the inspection that all four rotors exhibited cracks. The rotors were replaced. The brakes locked up causing the vehicle to smoke…”
Recall, complaint, and investigation records from official NHTSA datasets (FLAT_RCL,
FLAT_CMPL, FLAT_INV), synced weekly. Counts reflect NHTSA records for the 2004 Newmar Mountain Aire as of
July 5, 2026. Complaint narratives are consumer-submitted and unverified. This page
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