← New search

2004 Newmar Mountain Aire

Owner reports · Recalls · Investigations

Limited comparison data

There is not enough comparable history to draw a useful model-year comparison.

About this comparison →

How this year compares

Owner complaints by model year

Other model years Selected year
Compare all Mountain Aire years →

Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

Limited mileage data: 7 of 7 reports include usable mileage. There isn’t enough coverage to show a useful chart.

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Service Brakes, Hydraulic. Review the 6 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

0 crash reports0 fire reports0 injury reports

Service Brakes, Hydraulic complaints

6 reports
Clear category filter
20,242 miles · Sep 22, 2010
Service Brakes, Hydraulic

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 INFORMED THE CONTACT TO TAKE TH…

Read full complaint

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 INFORMED THE CONTACT TO TAKE THE VEHICLE TO A LOCAL DEALER. THE DEALER REPLACED THE BRAKES, CALIPERS, AND ROTORS UNDER THE SERVICE BRAKES, HYDRAULIC RECALL ( 09V217000). AFTER THE DEALER REPAIRED THE VEHICLE THE ABS LIGHT CAME ON. THE CONTACT TOOK THE VEHICLE BACK TO THE DEALER TO HAVE THE VEHICLE DIAGNOSE. THE DEALER INFORM THE CONTACT THE ABS SENSOR MALFUNCTIONED AND NEEDS TO BE REPLACED. THE DEALER REPLACED THE ABS SENSORS BUT WAS UNAWARE THAT THE REPAIR WAS NOT APART OF THE RECALL. THE CONTACT STATED THE ABS SENSOR SHOULD BE APART OF THE SERVICE BRAKES, HYDRAULIC RECALL SINCE THE ABS SENSOR IS APART OF THE BRAKING SYSTEM. THE FAILURE MILEAGE WAS 20,242.

NHTSA ODI #10356947

20,000 miles · Mar 31, 2010
Service Brakes, Hydraulic

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 WHICH REMAINED STATIONARY SO TH…

Read full complaint

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 WHICH REMAINED STATIONARY SO THAT IT COULD COOL DOWN. THE FAILURE OCCURRED SIX MONTHS AFTER THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS NOTIFIED AND RECOMMENDED THAT FORCE BE APPLIED TO THE BRAKES WITH A SCREWDRIVER. ADDITIONALLY, PHOTOGRAPHS OF THE DEFECTIVE ROTORS WERE SENT TO THE MANUFACTURER. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER ON A SECOND OCCASION. THE TECHNICIAN WAS UNABLE TO DETERMINE THE CAUSE OF FAILURE, AND THE EXCESSIVELY HEATED FRONT BRAKES WERE REPLACED. THE MANUFACTURER REIMBURSED THE CONTACT FOR THE SECOND REPAIR. THE FAILURE MILEAGE WAS 20,000. THE CURRENT MILEAGE WAS 43,000.

NHTSA ODI #10322999

29,862 miles · Mar 11, 2009
Service Brakes, Hydraulic

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 THE RECALL; THEREFORE, THEY WOU…

Read full complaint

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 THE RECALL; THEREFORE, THEY WOULD NOT ASSUME ANY RESPONSIBILITY. AS OF MARCH 11, 2009, THE VEHICLE HAS NOT BEEN REPAIRED. THE FAILURE MILEAGE WAS 29862. UPDATED 3/25/09 *CN ALL 4 ROTORS HAD HEAT CRACKS AND THE FRONT CLEAR HUB INDICATORS WERE WHITE CAUSED BY HEAT. THE BRAKES WERE NOT RELEASING AS DESIGNED. UPDATED 03/26/09. *JB

NHTSA ODI #10261509

39,360 miles · Apr 27, 2008
Service Brakes, Hydraulic

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

NHTSA ODI #10225809

25,124 miles · Apr 21, 2008
Service Brakes, Hydraulic

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 ASSIST TOT THE BRAKES. BUT, SHOULD …

Read full complaint

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 ASSIST TOT THE BRAKES. BUT, SHOULD YOU LOSE BOTH YOU HAVE NO BRAKES PER SI ON A 26,000 MOTOR HOME. *TR

NHTSA ODI #10225288

31,703 miles · Aug 15, 2007
Service Brakes, Hydraulic

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 NEVER SEEN ROTOR FAILURE OF THIS …

Read full complaint

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 NEVER SEEN ROTOR FAILURE OF THIS MAGNITUDE AND COULD BE DUE TO A MANUFACTURER DESIGN FLAW. THE MANUFACTURER STATED THAT THE FAILURE COULD HAVE BEEN CAUSED FROM HER HUSBAND'S DRIVING. THE CONTACT STATED THAT WAS IMPOSSIBLE BECAUSE THERE WOULD HAVE BEEN MORE DAMAGE TO THE COMPONENTS. THE ENGINE SIZE WAS UNKNOWN. THE CURRENT MILEAGE WAS 32,600 AND FAILURE MILEAGE WAS 31,703. THE CONSUMER PROVIDED PHOTOS OF THE DEFECT. UPDATED 09/18/07 *TR

NHTSA ODI #10199647

Official recalls

11

17V809000 · Equipment

Dec 15, 2017

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 the extinguisher from discharging as expected or excessive force may be needed to activate the extinguisher. Additionally, in certain models, the nozzle may detach from the valve assembly with enough force that it could cause injury and also render the product inoperable. For a full list of the affected fire extinguisher models visit: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17E062-5427.pdf

Consequence & remedy

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 owners may contact Newmar customer service at 1-574-773-7791. Newmar's number for this recall is 17E-062.

15V829000 · Steering

Dec 9, 2015

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 & remedy

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.

10V434000 · Equipment

Sep 22, 2010

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 & remedy

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.

09V217000 · Service Brakes, Hydraulic

Jun 11, 2009

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 DRAG. THE DRIVER WOULD NORMALLY HAVE WARNING OF THE BRAKE DRAG IF UNDETECTED BY THE DRIVER.

Consequence & remedy

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.

08V366000 · Equipment:recreational Vehicle/trailer

Jul 17, 2008

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, MY 2004-2006 MOUNTAIN AIRE DIESEL PUSHER MOTOR HOMES EQUIPPED WITH A TWO-DOOR REFRIGERATOR MANUFACTURED BY THE DOMETIC CORPORATION. THE REFRIGERATOR MAY HAVE A DEFECT IN THE BOILER TUBE. PRESSURIZED COOLANT SOLUTION COULD BE RELEASED INTO AN AREA WHERE AN IGNITION SOURCE (GAS FLAME) IS PRESENT.

Consequence & remedy

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 LOCATING DEALERSHIPS OR SERVICE CENTERS AND WILL PROVIDE ASSISTANCE WITH SCHEDULING OF APPOINTMENTS. OWNERS MAY CONTACT DOMETIC/STERICYCLE AT 1-888-446-5157 OR NEWMAR AT 1-574-773-7791.

08V015000 · Steering:gear Box (other Than Rack And Pinion)

Jan 11, 2008

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 OF STEERING.

Consequence & remedy

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.

05V263000 · Service Brakes, Air:supply

Jun 2, 2005

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 & remedy

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.

05V170000 · Equipment

Apr 25, 2005

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 & remedy

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.

05V109000 · Electrical System

Mar 24, 2005

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 CLUSTER SUCH THAT CERTAIN WARNINGS ARE NOT DISPLAYED.

Consequence & remedy

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.

04V244000 · Seat Belts:front:buckle Assembly

May 18, 2004

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 & remedy

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.

03V369000 · Suspension:front:control Arm

Oct 3, 2003

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 & remedy

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), SPARTAN AT 517-543-6400, OR NEWMAR AT 574-773-7791.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

0

No exact-year investigations in this snapshot.