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2015 Newmar Mountain Aire problems

The most common problem on the 2015 Newmar Mountain Aire is engine and cooling. It has fewer complaints than a typical Mountain Aire model year.

Typical yearClose to a typical year
Owner complaints
1
Recalls
6
Service bulletins
22
Worst area
Engine

The worst 2015 Newmar Mountain Aire problems

Ranked by number of owner complaints. Mileage and cost come from what owners wrote.

  • Engine
    1

Problems by type

Tap a problem to see which part fails, at what mileage and in which other years.

  • Engine
    1

Recalls 6

EquipmentReported December 15, 2017 · 34,699 vehicles affected
What is wrong
Newmar Corporation (Newmar) is recalling various 1995-2018 motorhomes. A list of the affected vehicles available at: 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:
Risk
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.

Recall number 17V809000 · Recall details

Vehicle speed control: accelerator pedalReported June 28, 2016 · 1,243 vehicles affected
What is wrong
Newmar Corporation (Newmar) is recalling certain model year 2014-2016 Dutch Star and Mountain Aire and 2015-2016 London Aire and Essex motorhomes manufactured January 28, 2013, to December 14, 2015 and built on a Daimler Trucks North America (DTNA) chassis. The throttle pedal position sensor on the affected vehicles may not return to zero, causing the engine brake to suddenly not activate as expected, reducing the vehicle's deceleration ability.
Risk
A sudden loss of an engine brake without warning on a motorhome may lead to a reduced brake capacity, potentially increasing the risk of a crash.
Remedy
Newmar will notify owners, and DTNA dealers will replace the throttle pedal, free of charge. The recall began on August 5, 2016. Owners may contact Newmar Customer Service Department at 1‑800‑731‑8300 or Daimler Trucks North America LLC at 1‑800‑547‑0712, or by e-mail at [email protected]. Newmar's number for this recall is 16V 321.

Recall number 16V478000 · Recall details

Steering: hydraulic power assist: hose, piping, and connectionsReported May 10, 2016 · 93 vehicles affected
What is wrong
Newmar Corporation (Newmar) recalling certain model year 2014-2015 Essex, and 2015 Mountain Aire and London Aire motorhomes manufactured from May 20, 2013, through April 09, 2015. These vehicles are built on Freightliner rear engine chassis that have 18,000lb or 20,000lb-capacity front axles. In these motorhomes, the power steering fluid temperature may exceed the power steering hose material rating, subsequently causing the hoses to fail, resulting in a sudden loss of power steering.
Risk
Loss of power steering assist would result in increased difficulty to steer the vehicle in either direction at low speeds, increasing the risk of a crash.
Remedy
Newmar will notify owners, and Freightliner dealers will replace the power steering hose with a higher temperature rated one, free of charge. The recall began on June 15, 2016. Owners may contact Freightliner customer service at 1‑800‑547‑0712 or Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 16V‑121.

Recall number 16V280000 · Recall details

Service brakes, hydraulic: pedals and linkagesReported April 28, 2016 · 1,150 vehicles affected
What is wrong
Newmar Corporation (Newmar) is recalling certain model year 2014-2016 Dutch Star, Mountain Aire, Essex, and 2015-2016 London Aire vehicles manufactured March 27, 2013, to October 16, 2015 and built on a Freightliner chassis. On certain recreational vehicles built with a heavier, adjustable foot pedal, the brake activation signal to certain towed devices may not deactivate when the service brakes are released.
Risk
If the brake activation signal to a towed device remains active when the motorhome chassis service brakes are released, the brakes on a towed device may remain engaged depending on brake configuration of the trailer. As a result, the brakes would drag and possibly overheat potentially resulting in a fire. Additionally, following drivers may be confused by the motorhome's actions, increasing the risk of a crash.
Remedy
Newmar will notify owners, and Freightliner dealers will modify the affected assemblies, free of charge. The recall began on May 26, 2016. Owners may contact Freightliner/Daimler Trucks North America LLC at 1‑800‑547‑0712 or Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 16V‑204.

Recall number 16V252000 · Recall details

Equipment: recreational vehicle/trailerReported December 1, 2015 · 979 vehicles affected
What is wrong
Newmar Corporation (Newmar) is recalling certain model year 2008-2014 King Aire, 2009-2014 Essex, 2011-2015 Mountain Aire, Ventana, and Dutch Star, 2012-2014 Ventana LE, 2012-2015 Canyon Star, and 2015 London Aire motorhomes. The affected vehicles are equipped with refrigerator door latches that may inadvertently lock without the operator's knowledge.
Risk
If an individual climbed into the refrigerator and the door inadvertently latched, the person would not be able to open the door, increasing their risk of injury.
Remedy
Newmar will notify owners, and dealers will install a new replacement door latch that will not automatically latch, free of charge. The recall began on January 24, 2016. Owners may contact Newmar customer service at 1‑800‑731‑8300.

Recall number 15V808000 · Recall details

Visibility: windshield wiper/washerReported March 16, 2015 · 153 vehicles affected
What is wrong
Newmar Corporation (Newmar) is recalling certain model year 2014-2015 King Aire, Essex, London Aire, and Mountain Aire motor homes manufactured November 26, 2013, to November 11, 2014. The wiper blades may separate from the wiper arm connectors, especially when the wipers are used at the high speed setting.
Risk
If the wiper blades separate from the wiper arms, the driver may have reduced visibility, increasing the risk of a crash.
Remedy
The recall began on March 17, 2015. Owners may contact Newmar customer service at 1‑800‑731‑8300.

Recall number 15V149000 · Recall details

See all 6 recalls for the 2015 Newmar Mountain Aire

Technical service bulletins for the 2015 Newmar Mountain Aire 22

Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.

See all 22 bulletins for the 2015 Newmar Mountain Aire

What 2015 Newmar Mountain Aire owners say

Most recent owner complaints, unedited.

Filed Dec 21, 2020 · Engine · 25,000 miles · AZ

I purchased the unit with 25,000 miles. The def system failed enroute to the dealer I purchased it from and failed again after approximately 3,000 miles after repair. The entire def header was replaced. This is an extremely dangerous situation when the vehicle goes in to derate. My motorhome is 53,000 lbs and 45'. Add a tow vehicle and it is very dangerous when this happens. I was heading to las vegas nv from quartzite, az when this happend on a two lane highway. No place to pull over to even check anything. These def systems continue to be extremely problematic. There needs to be investigation in to how to keep these systems operating properly.

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Questions about the 2015 Newmar Mountain Aire

Is the 2015 Newmar Mountain Aire reliable?

Owners have filed 1 complaint about the 2015 Newmar Mountain Aire, fewer than a typical Mountain Aire model year.

What is the most common problem with the 2015 Newmar Mountain Aire?

Engine and cooling, with 1 complaint.

How many recalls does the 2015 Newmar Mountain Aire have?

6 recalls, covering equipment, vehicle speed control and steering.

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