Complaints over time
Complaints about the 2018 Newmar King Aire peaked in 2020, with 1 filed
Owner complaints about this model year, by the year they were filed with NHTSA.
Source: NHTSA ODI complaints file. The lighter column runs through October.
Model year
2018 Newmar King Aire
Other, diesel, built in United States. Owner complaints on file from Dec 22, 2020 to Dec 22, 2020.
Recall campaigns covering this model year1142k vehicles or units across those campaigns
Owner complaints1Below the median 2018 other
Severity index0.02018 others average 4.1
First 24 months0Complaints in its first two years
Components
100% of complaints about the 2018 Newmar King Aire name fuel system
Owner complaints by component. Hover or focus a bar for the crash, fire, injury or death count.
Source: NHTSA ODI complaints file. A complaint can name more than one component; it is counted under the first.
Recalls
11 recall campaigns cover the 2018 Newmar King Aire
Check a specific vehicle by VIN on NHTSA's site: a campaign may cover only part of a model year's production.
| Campaign | Filed | Subject | Component | Vehicles | Remedy |
|---|---|---|---|---|---|
| 25V-431 | Jun 27, 2025 | Baggage door skins may come loose and separate from the door frame | Structure | 541 | Inspection |
| 19V-610 | Aug 20, 2019 | Bedroom fascia header may fall unexpectedly onto the bed | Equipment | 376 | Repair or modification |
| 19V-257 | Mar 29, 2019 | Power supply for the WiFiRanger may overheat | Equipment | 476 | Part replacement |
| 18V-518 | Aug 6, 2018 | Affected vehicles have entry doors that have latch rods that may be improperly adjusted, allowing the door to open during transit | Equipment | 239 | Not stated |
| 18V-438 | Jun 28, 2018 | When the ignition key is in the off/accessory position and the battery disconnect is on, the slide-out rooms on these vehicles may move in or out… | Electrical system | 930 | Part replacement |
| 18V-387 | Jun 8, 2018 | These vehicles are equipped with windshield wipers that may have an incorrect bend, possibly preventing the wiper arms from properly contacting… | Visibility and wipers | 77 | Part replacement |
| 18V-236 | Apr 13, 2018 | Electrical connections in the breaker box may not be properly tightened, possibly causing the connections to overheat | Electrical system | 653 | Repair or modification |
| 17V-830 | Dec 19, 2017 | These vehicles may have a loose power connection at the Automatic Transfer Switch (ATS), possibly resulting in a build up of heat | Electrical system | 2,915 | Repair or modification |
| 17V-809 | Dec 15, 2017 | List of the affected vehicles available at: https://static.nhtsa.gov/odi/rcl/2017/RMISC-17V809-2309.pdf | Equipment | 34,699 | Part replacement |
| 17V-413 | Jun 29, 2017 | These engines have a fuel pump whose drive gear could possibly slip on its drive shaft, causing a fuel pump function loss, resulting in an engine… | Fuel system | 4 | Part replacement |
| 17V-195 | Mar 22, 2017 | Ball joints on the independent front suspension (IFS) modules can loosen and separate, leading to a partial loss of steering | Suspension | 595 | Repair or modification |
Source: NHTSA ODI recalls file.
Owner complaints
What owners reported about the 2018 Newmar King Aire
The full text of every complaint filed with NHTSA about this model year, newest first. Complaints are filed by owners and are not verified by NHTSA; NHTSA removes personal details before publishing.
1 complaint on file, page 1 of 1.
- Filed Dec 22, 2020Failure Aug 8, 202010,000 milesPalm Harbor, FLFuel/propulsion system
I OWN A 2018 NEWMAR KING AIRE MOTOR HOME. I HAD A GEN 5 DIESEL EXHAUST FLUID (DEF) SENSOR FAIL AT 10,000 MILES. I WAS ONE OF THE LUCKY ONES IN THAT WHEN THE DASH LIT UP WITH WARNINGS I WAS ABLE TO DRIVE IT HOME BEFORE IT WENT INTO DERATE. I WAS LESS THAN 200 MILES AWAY AT THE TIME. THERE ARE MANY LINKS ON WWW.IRV2.COM ABOUT THIS ISSUE WITH MANY OTHER MOTOR HOME OWNERS. SOME VERY SCARY PUTTING LIVES AT RISK. THE DERATE LIMP MODE OF BEING ABLE TO GO 5MPH JUST DOES NOT SUFFICE. THERE IS NOTHING ON THE WARNINGS THAT TELL YOU HOW MANY MILES YOU CAN DRIVE BEFORE DERATE. THERE IS NO 'RESET BUTTON' TO GET YOU EITHER HOME OR TO A SERVICE CENTER. (SUGGESTION, SINCE THIS IS AN EPA MANDATE, COULDN'T THE EPA LET THE MANUFACTURERS HAVE A RESET BUTTON TO GET TO A SERVICE CENTER? IT WOULD REQUIRE A CALL TO THE EPA, MUST BE MANNED 24 HRS A DAY, SO THAT THEY CAN KEEP TRACK SO PEOPLE DON'T ABUSE.) I AM ALL FOR REDUCING EMISSIONS ON DIESEL ENGINES, BUT I AM NOT FOR PUTTING MY LIFE AT RISK TO ACHIEVE THIS. THAT IS WHAT IS HAPPENING TODAY. LIVES ARE BEING PUT AT RISK. [XXX] PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).
NHTSA complaint 11384504
Source: NHTSA ODI complaints file.
Investigations
NHTSA has not opened an investigation on this model year
Source: NHTSA ODI investigations file.
Service bulletins
29 manufacturer communications cover this model year
Technical service bulletins and other notices the manufacturer sent to dealers. A bulletin is not a recall.
- 25V 431 Sep 9, 2025 · Service Campaign
On certain motorhomes, the baggage door skins may come loose from the door frame perimeter, possibly allowing the skin to separate completely from the door frame. - 19V 610 Sep 17, 2019 · Service Bulletin/Repair Instructions
On certain motorhomes, the bedroom fascia header has the potential to fall unexpectedly on top of the bed mattress. - 19V 610 Sep 17, 2019 · Service Bulletin/Repair Instructions
On certain motorhomes, the bedroom fascia header has the potential to fall unexpectedly on top of the bed mattress. - 19V 257 Apr 18, 2019 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect, which relates to motor vehicle safety, exists in specific motorhomes with the WiFi Ranger option and a specific power supply. - PIB 541 Mar 25, 2019 · Service Bulletin/Repair Instructions
Some coaches equipped with both the SilverLeaf system and a TRC transfer switch (model 40350RVC-40350RVC3) may receive a warning on the SilverLeaf touchscreen that reads “transfer switch 0-0 failure unknown.” This is a false warning caused by the TRC transf… - PIB 539 Jan 29, 2019 · Service Bulletin/Repair Instructions
The driver console USB port to the Xite G3 system may not function properly when plugged into the USB dongle on the Xite G3 system. - PIB 538 Dec 18, 2018 · Service Bulletin/Repair Instructions
Newmar has made a change to the water pump circuit fuse on certain coaches to improve customer experience. In most cases, the 10 amp fuse installed by the factory is sufficient. However, some coaches equipped with a ShurFlo water pump (Newmar part # 127488)… - RSB 528 Sep 4, 2018 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes. NHTSA 18V 518, TC# 2018-413. Issue: On certain motorhomes, the latch on the entry door may not engage properly. This may allow the door to open une… - PIB 527 Sep 24, 2018 · Service Bulletin/Repair Instructions
If a customer complains about their satellite, this product improvement bulletin may be helpful. This will only apply to coaches equipped with an HDMI/ CAT6 splitter AND the customer has installed a Geni-type satellite receiver. In this scenario, the custom… - PIB 529 Aug 14, 2018 · Service Bulletin/Repair Instructions
This bulletin was created to inform dealers and techs that an updated linkage is available that provides a remedy for binding linkages to the power actuator. This issue often creates difficulty when locking or unlocking the compartment door using the key an… - RSB 526 Aug 24, 2018 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes. NHTSA # 18V 438, TC# 2018-349 Issue: After the battery disconnect is turned on, the slideout controller may cause the slideouts to extend or retra… - RSB 522 Jul 31, 2018 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes. NHTSA 18V 387 TC 2018-303 Issue: On certain motorhomes, the windshield wiper arms may have been manufactured incorrectly. This may reduce the driv… - TSB 525 Jul 11, 2018 · Service Bulletin/Repair Instructions
Newmar has determined that the Bose 300 sound bar may come loose from the mounting brackets. - RSB 519 Apr 26, 2018 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes. Recall NHTSA 18V 236, TC 2018-182. On certain motorhomes, there may be loose electrical connections in the breaker box that were not properly tight… - PIB 511 Apr 12, 2018 · Service Bulletin/Repair Instructions
Certain Dash Xite Radio USB Inputs may have been spliced without the shield of the cable properly attached. If affected, the USB ports may not be active as the USB input to the Xite Infotainment center. The affected USB input is normally located on the driv… - TSB 518 Apr 6, 2018 · Service Bulletin/Repair Instructions
Spartan Motors USA, Inc. has provided CSB18-560-001 documentation to Newmar regarding certain 2018 King Aire and Essex coaches with possible unintended warnings or messages displaying on the digital dash. Newmar is publishing this TSB to help inform our dea… - RSB 506 Jan 18, 2018 · Service Bulletin/Repair Instructions
Newmar Corporation has decided that a defect relating to motor vehicle safety exists in specific motorhomes. Issue: On certain motorhomes, there may be a loose electrical connection to the automatic transfer switch (ATS) that was not properly tightened. If… - TSB 500 Dec 14, 2017 · Service Bulletin/Repair Instructions
Newmar has determined that the push button switches used during early production of the 2018 King Aire coaches have experienced a high failure rate in the field. The replacement switch is more robust than the previous version. Issue: The original switch in… - PIB 499 Amended Dec 27, 2017 · Service Bulletin/Repair Instructions
KIB push-button compartment door lock modules on 2018 King Aire coaches may have a software glitch that may cause some modules to fail to automatically acquire their network ID when installed. When operating a compartment door push button, this scenario co… - TSB 498 Dec 14, 2017 · Service Bulletin/Repair Instructions
Newmar has decided to incorporate a system reset switch for coaches equipped with HWH hydraulic entrance steps. The switch has been added to the front overhead cabinet during production on later 2018 models. If the HWH system fails to operate the pump asse… - TSB 490 Dec 14, 2017 · Service Bulletin/Repair Instructions
Newmar has decided to install an override switch for the HWH step to provide a way to operate the step from inside the coach in the event of a sensor or door switch failure. In the event of a step failure, the person(s) inside the coach would have a large … - PIB 499 Oct 19, 2017 · Service Bulletin/Repair Instructions
KIB push-button compartment door lock modules on 2018 King Aire coaches may have a software glitch that may cause some modules to fail to automatically acquire their network ID when installed. - PIB 496 Oct 12, 2017 · Service Bulletin/Repair Instructions
This Product Information Bulletin?s purpose is to inform technicians that when working on the 2018 New Aire HVAC system, there is an extra zone thermostat sensor installed in the driver?s side slideout. It is often located in the rear overhead cabinet on co… - PIB 494 Sep 28, 2017 · Service Bulletin/Repair Instructions
If the coach's HWH leveling system has intermittent issues when operating, check for corrosion or loose mounting bolts. Torque the mounting bolts (if needed) to 30 ft. pounds. A ground cable may also be installed to improve the overall grounding of the HWH … - TSB 492 Sep 14, 2017 · Service Bulletin/Repair Instructions
Newmar changed the breaker box wiring and updated the SilverLeaf TM250 Load Management Module to help balance the electrical loads in 2018 New Aire Diesel Pusher coaches. Some coaches may have been shipped without the change being performed. This is not a … - TSB 491 Sep 28, 2017 · Service Bulletin/Repair Instructions
SilverLeaf has determined that, in some cases, the TM102 Coach Management module (between version 3.38 and 3.42) may not communicate with the engine computer using the 500k baud rate. In response, Newmar has issued TSB 491. Issue: During coach startup, th… - RSB487 Aug 17, 2017 · Service Bulletin/Repair Instructions
Riverpark, Inc. has recently discovered an issue with some of their SD cards that may make the dash radio freeze, run slow, and/or reboot. After testing, Riverpark believes that some of the Kingston SD cards were defective from the factory. In response to t… - RSB484 Jul 20, 2017 · Service Bulletin/Repair Instructions
Spartan Motors has decided that a defect relating to motor vehicle safety exists in specific motorhomes built on Spartan chassis. In response, Newmar is issuing recall NHTSA # 17v 413. Issue: On certain motorhomes, the drive gear on the fuel pump may spin … - RSB 477 Apr 27, 2017 · Service Bulletin/Repair Instructions
Spartan Motors USA, Inc. has decided that a defect relating to motor vehicle safety exists in specific motor homes built on Spartan chassis. In response, Newmar Corporation is publishing the following recall: NHTSA #17V 195 TC #2017-162. Issue: On certain m…
Source: NHTSA manufacturer communications files.