NHTSA vehicle safety data

2015 Newmar Mountain Aire Recalls & Complaints

The 2015 Newmar Mountain Aire has 6 NHTSA recall campaigns and 1 owner complaint on file as of November 3, 2026. Recall repairs are usually free at an authorized Newmar dealer.

NHTSA recall and complaint data for the 2015 Newmar Mountain Aire. Recall data is refreshed daily from NHTSA.

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2015 Newmar Mountain Aire owner complaints

Owners have filed 1 complaint with NHTSA about the 2015 Newmar Mountain Aire, describing incidents dated January 19, 2020.

Most-cited components

Engine 1 complaint

Newest complaints

ODI #11384396 · Filed December 21, 2020
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…

Read the full complaint

Fire Extinguisher May Be Clogged or Inoperable

NHTSA #17V809000 · Equipment · NHTSA notice

Reported December 15, 2017 · Newmar Corporation

Potentially affected: 34,699 vehicles

Repair completion: 6.32% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Newmar campaign 17E-062 · Owners notified February 7, 2018 · Vehicles built July 24, 1997 – November 3, 2017 (per NHTSA)

Defect description

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

Safety consequence

In the event of a fire, if the fire extinguisher does not function properly, it can increase the risk of injury.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Engine Brake may not Activate

NHTSA #16V478000 · Vehicle Speed Control — Accelerator Pedal · NHTSA notice

Reported June 28, 2016 · Newmar Corporation

Potentially affected: 1,243 vehicles

Repair completion: 23.97% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Newmar campaign 16V 321 · Owners notified August 5, 2016 · Vehicles built January 28, 2013 – December 14, 2015 (per NHTSA)

Defect description

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.

Safety consequence

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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Steering Fluid Temperature may Exceed Hose Rating

NHTSA #16V280000 · Steering — Hydraulic Power Assist — Hose, Piping, and Connections · NHTSA notice

Reported May 10, 2016 · Newmar Corporation

Potentially affected: 93 vehicles

Repair completion: 68.82% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Newmar campaign 16V-121 · Owners notified June 15, 2016 · Vehicles built May 20, 2013 – April 9, 2015 (per NHTSA)

Defect description

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.

Safety consequence

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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Trailer Brakes may Stay Activated

NHTSA #16V252000 · Service Brakes, Hydraulic — Pedals and Linkages · NHTSA notice

Reported April 28, 2016 · Newmar Corporation

Potentially affected: 1,150 vehicles

Repair completion: 82.61% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Newmar campaign 16V-204 · Owners notified May 26, 2016 · Vehicles built March 27, 2013 – October 16, 2015 (per NHTSA)

Defect description

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.

Safety consequence

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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Refrigerator Door Latch May Inadvertently Lock

NHTSA #15V808000 · Equipment — Recreational Vehicle/Trailer · NHTSA notice

Reported December 1, 2015 · Newmar Corporation

Potentially affected: 979 vehicles

Repair completion: 42.19% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Owners notified January 4, 2016 · Vehicles built April 5, 2007 – March 5, 2015 (per NHTSA)

Defect description

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.

Safety consequence

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.

Manufacturer 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.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Wiper Blades may Detach from Wiper Arms

NHTSA #15V149000 · Visibility — Windshield Wiper/Washer · NHTSA notice

Reported March 16, 2015 · Newmar Corporation

Potentially affected: 153 vehicles

Repair completion: 48.37% (latest rate the manufacturer reported to NHTSA; dataset updated November 3, 2026)

Owners notified March 17, 2015 · Vehicles built November 26, 2013 – November 11, 2014 (per NHTSA)

Defect description

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.

Safety consequence

If the wiper blades separate from the wiper arms, the driver may have reduced visibility, increasing the risk of a crash.

Manufacturer remedy

The recall began on March 17, 2015. Owners may contact Newmar customer service at 1-800-731-8300.

Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

try.vin has no NCAP crash-test rating on file for the 2015 Newmar Mountain Aire. NHTSA rates some vehicles by body style — pickups by cab, vans by roof height — so check nhtsa.gov/ratings.

1 owner complaint has been filed with NHTSA for the 2015 Newmar Mountain Aire.

Engine

ODI #11384396

Incident: January 19, 2020 · Filed: December 21, 2020

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.

Other Newmar Mountain Aire model years

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