My motorhome is currently in a Freighliner shop to replace the 2nd defective DEF head in less than 19,000 miles since New. The defective DEF head causes a derate of power and total shut down and can leave you stranded on the highway or coming down a mountain pass with no power defeating the air compressor therefore no air brakes with a 45 foot, 58,000 GVW vehicle. In my case I was able to get off the highway before total shutdown only because I was aware of the built in shutdown design of the emissions system.
The worst 2019 Newmar Mountain Aire problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Driver assistance2
- Brakes1
- Engine1
- Fuel system1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Driver assistance2
- Brakes1
- Engine1
- Fuel system1
Recalls 15
Seats
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019-2022 Bay Star, Bay Star Sport, Ventana, Dutch Star, New Aire, Canyon Star, 2019 Ventana LE, 2020-2022 Kountry Star, 2019-2020 Mountain Aire, London Aire, Essex, and 2021 Super Star vehicles. The wiring under the seats may be incorrectly secured, which can lead to a pinched wire in the seat adjustment mechanism and cause an electrical short circuit.
- Risk
- A short circuit increases the risk of a fire.
- Remedy
- Dealers will inspect and secure the wiring, adding circuit breaker and fuse protection as necessary, free of charge. Owner notification letters are expected to be mailed on June 10, 2022. Owners may contact Newmar's customer service at 1‑800‑731‑8300.
Recall number 22V234000 · Recall details
Electrical system: instrument cluster/panel
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019-2021 London Aire, Dutch Star, Essex, King Aire, Mountain Aire, 2020-2021 Ventana, and 2021 New Aire recreational vehicles. The instrument cluster may intermittently go blank while the vehicle is in motion.
- Risk
- A blank instrument cluster display may be missing critical information such as the vehicle's speed and warning lights, which can increase the risk of a crash.
- Remedy
- Dealers will update the control module software, and reroute and secure the ductwork, free of charge. Owner notification letters were mailed on November 8, 2021. Owners may contact Newmar's customer service at 1‑800‑731‑8300.
Recall number 21V700000 · Recall details
Structure
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019-2021 Bay Star, Ventana, New Aire, 2019-2020 Canyon Star, Bay Star Sport, Essex, King Aire, London Aire, Mountain Aire, 2018-2021 Dutch Star, 2020 Kountry Star, and 2019 Ventana LE recreational vehicles. The adhesive that bonds the vented portion of the window may fail.
- Risk
- Adhesive failure may cause the vent portion of the window to detach, increasing the risk of a crash or injury.
- Remedy
- Dealers will inspect the windows, and replace the vent if necessary, free of charge. Owner notification letters were mailed on September 10, 2021. Owners may contact Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 21E 047.
Recall number 21V571000 · Recall details
Fuel system, diesel: fuel injection system: fuel rail
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019 Mountain Aire, 2020-2021 New Aire, 2020-2022 Super Star, 2018-2021 Ventana, and Dutch Star vehicles equipped with certain Cummins diesel engines. The sealing washer may not seat correctly in the pilot boreholes, allowing the high-pressure fuel rail assembly to leak.
- Risk
- A fuel leak in the presence of an ignition source increases the risk of a fire.
- Remedy
- Cummins service centers will inspect the rail threads and fuel lines, and replace the rail as necessary, free of charge. Owner notification letters were mailed on August 24, 2021. Owners may contact Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is Cummins 21E-32.
Recall number 21V506000 · Recall details
Fuel system, diesel: fuel injection system: fuel rail
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2017-2022 Dutch Star, 2017-2019 Mountain Aire, 2019-2021 Ventana and 2021 New Aire motorhomes. The sealing washer may not seat correctly in the pilot bore holes, allowing the high pressure fuel rail assembly to leak.
- Risk
- A fuel leak in the presence of an ignition source increases the risk of a fire.
- Remedy
- Dealers will inspect the rail threads, and replace the rail as necessary, free of charge. Interim notification letters were mailed to owners on July 16, 2021. Owners may contact Newmar customer service at 1‑800‑731‑8000. Newmar's number for this recall is Cummins 21E-032.
Recall number 21V372000 · Recall details
Electrical system: software
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2018-2019 Essex and New Aire, 2019 Dutch Star, London Aire, Mountain Aire, and Ventana motorhomes. The instrument panel brightness cannot be adjusted, possibly causing glare when driving at night. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 101, "Control and Displays."
- Risk
- Glare can reduce the driver's visibility of the road, increasing the risk of a crash.
- Remedy
- Newmar will notify owner, and dealers will update the software and processor, as necessary, free of charge. The recall began October 21, 2020. Owners may contact Newmar customer service at 1‑800‑731‑8300.
Recall number 20V509000 · Recall details
Exterior lighting: turn signal
- What is wrong
- Newmar Corporaton (Newmar) is recalling certain 2016-2019 Ventana LE, 2017-2020 Ventana, London Aire, Essex and Dutch Star, 2017-2019 Mountain Aire, 2018-2020 New Aire, and 2020 Kountry Star motorhomes that received the 'inspection-only' remedy from recall 19V‑426. The rear mounted Power Distribution Module (PDM) may have been damaged during manufacturing, possibly resulting in the rear marker lights, brake lights, or turn signals not functioning.
- Risk
- Non-functioning exterior marker lights can increase the risk of a crash.
- Remedy
- Newmar will notify owners, and Daimler Trucks North America dealers will replace the PDM, free of charge. This recall began September 11, 2020. Owners may contact Newmar's customer service at 1‑800‑731‑8300. Newmar's number for this recall is 20V‑404.
Recall number 20V421000 · Recall details
Service brakes, air: disc: caliper
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019-2020 Essex and London Aire, 2019 Mountain Aire, Ventana LE and Ventana and 2020 Kountry Star motorhomes built on DTNA chassis. The brake caliper mounting bolts may have been insufficiently tightened.
- Risk
- Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.
- Remedy
- Newmar will notify owners, and DTNA dealers will inspect and repair the vehicles, free of charge. The recall began May 6, 2020. Owners may contact DTNA customer service at 1‑800‑547‑0712 or Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 20V‑127.
Recall number 20V171000 · Recall details
Equipment: recreational vehicle/trailer
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2018-2020 Mountain Aire, Essex, and King Aire motorhomes. The bedroom fascia header may fall unexpectedly onto the bed.
- Risk
- If the fascia header falls while there is an occupant in the bed, it can increase the risk of an injury.
- Remedy
- Newmar will notify owners, and dealers will add screws and brackets to properly secure the fascia header, free of charge. The recall began September 17, 2019. Owners may contact Newmar customer service at 1‑800‑731‑8300.
Recall number 19V610000 · Recall details
Exterior lighting
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2016-2019 Ventana LE and 2017-2019 Dutch Star, Essex, London Aire, Mountain Aire and Ventana, and 2018-2019 New Aire motorhomes built on a Daimler trucks chassis. The rear mounted Power Distribution Module (PDM) may have been damaged during manufacturing, possibly resulting in the rear marker lights, brake lights, or turn signals not functioning.
- Risk
- Nonfunctioning lights can increase the risk of a crash.
- Remedy
- Newmar will notify owners, and Daimler Trucks dealers will inspect and replace the rear PDM, as necessary, free of charge. The recall began July 18, 2019. Owners may contact Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 18V‑852.
Recall number 19V426000 · Recall details
Service brakes
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019 Mountain Aire and Essex motorhomes built on Freightliner XC chassis equipped with air disc brakes. The brake caliper mounting bolts may have been insufficiently tightened.
- Risk
- Loose brake caliper mounting bolts may reduce the brake effectiveness, increasing the risk of crash.
- Remedy
- Newmar will notify owners, and Freightliner dealers will inspect and repair the vehicles, free of charge. The recall began June 20, 2019. Owners may contact Newmar customer service at 1‑800‑731‑8300. Newmar's numbers for this recall are FL-816 and 19V‑367.
Recall number 19V384000 · Recall details
Service brakes, air: disc
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2019 Essex, King Aire, London Aire, Mountain Aire, and 2020 Dutch Star motorhomes. The brake relay valve may have an air flow restriction due to a partially blocked orifice, which may lead to extended stopping distance. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 121, "Air Brake Systems."
- Risk
- An increase in stopping distance without warning increases the risk of crash.
- Remedy
- Newmar will notify owners, and Spartan dealers will inspect and replace the brake relay valve, if necessary, free of charge. The recall began June 20, 2019. Owners may contact Newmar customer service at 1‑800‑731‑8300 or Spartan customer service at 1‑800‑543‑5008. Newmar's number for this recall is 19012.
Recall number 19V381000 · Recall details
Service brakes, air: disc: caliper
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Essex, Ventana LE, Ventana, London Aire, and Mountain Aire vehicles. The brake caliper mounting bolts may not have been sufficiently tightened.
- Risk
- Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.
- Remedy
- Newmar has notified owners, and Daimler Trucks North America dealers will inspect and tighten the brake caliper mounting bolts, free of charge. The recall began January 10, 2019. Owners may contact Newmar customer service at 1‑800‑731‑8300. Newmar's number for this recall is 18V‑703.
Recall number 18V859000 · Recall details
Equipment: recreational vehicle/trailer
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Ventana LE, Mountain Aire, Essex, Ventana, Dutch Star, New Aire, London Aire and King Aire motorhomes. The affected vehicles have entry doors that have latch rods that may be improperly adjusted, allowing the door to open during transit.
- Risk
- If the door opens during transit, it can increase the risk of injury or a crash.
- Remedy
- Newmar will notify owners, and dealers will readjust the door latch rod, free of charge. The recall began September 5, 2018. Owners may contact Newmar customer service at 1‑800‑731‑8300.
Recall number 18V518000 · Recall details
Visibility: windshield wiper/washer
- What is wrong
- Newmar Corporation (Newmar) is recalling certain 2018-2019 Newmar Mountain Aire, London Aire, Essex, and King Aire motorhomes. These vehicles are equipped with windshield wipers that may have an incorrect bend, possibly preventing the wiper arms from properly contacting the windshield. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard (FMVSS) number 104, "Windshield Wiping and Washing Systems."
- Risk
- If the windshield wipers do not properly contact the windshield, the driver's visibility may be reduced, increasing the risk of a crash.
- Remedy
- Newmar will notify owners, and dealers will replace the wiper arms, free of charge. The recall began on August 3, 2018. Owners may contact Newmar customer service at 1‑800‑731‑8300.
Recall number 18V387000 · Recall details
Technical service bulletins for the 2019 Newmar Mountain Aire 24
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
What 2019 Newmar Mountain Aire owners say
Most recent owner complaints, unedited.
The on-guard system will activate on ghosts and frequently does not release when the vehicle is in-motion. It can be activated by guard rails along highway, bridge buttresses, concrete barriers, vehicles that are pulled off the road. Once activated the system may keep applying the brakes until you have almost come to a complete stop. Twice when running on a interstate, I have had to pull off on the shoulder to avoid be rear ended by a big truck, 80,000# tractor trailer. It has been to service centers multiple times and the issue remains. I asked to have it unplugged and was told that it was not possible.
The instrument panel brightness cannot be adjusted, causing glare when driving at night irrespective of whether it is in-motion or stationary. As such, these vehicles fail to comply with the requirements of federal motor vehicle safety standard number 101, "control and displays." the only way I can drive at night is to cover the glass display so that I do not get the glare reflecting from the side windows and windshield. When the glass dash is covered you lose critical information including vehicle speed. The glare obscures seeing out the windshield, side windows, or mirrors. This has been an issue since I took delivery and limits operation to daytime only.
On june 4th at 11:16 am, traveling west bound on I-40 at 70 MPH my brakes were slammed on momentarily and ability to accelerate was cancelled for a few seconds. There was nothing in front of me except for the over pass for petrified forest np. Big rig trucker was just beginning to change lanes and pass me when this happened. Trucker was challenged in his efforts to avoid rear ending me and he was obviously furious with me as he passed me. This was the 5th time the coach has false alarmed in about 7,000 miles. Zf wabco, on guard cms is the reason for this near miss and they are now telling me the system is operating as expected. During a conf. Call they claim they can't be responsible for traffic behind me. Cms has been checked by massey diesel, newmar mfg, and spartan motors. Spartan confirmed the radar head was properly aligned and secure and uploaded the most recent software. System is still malfunctioning. I know there are at least 6 other coach owners having the same malfunction. These events are terrifying.
Compare the 2019 Newmar Mountain Aire
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Questions about the 2019 Newmar Mountain Aire
Is the 2019 Newmar Mountain Aire reliable?
Owners have filed 4 complaints about the 2019 Newmar Mountain Aire, close to a typical Mountain Aire model year.
What is the most common problem with the 2019 Newmar Mountain Aire?
Driver assistance and stability, with 2 complaints. Next is brakes (1).
How many recalls does the 2019 Newmar Mountain Aire have?
15 recalls, covering seats, electrical system and structure.
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