2018 Newmar Mountain AireProblems, recalls & complaints

NHTSA has logged 1 owner complaint about the 2018 Newmar Mountain Aire, most often about the engine. It is covered by 16 safety recalls, and for recall 21V-506 the manufacturer reports only 1% of affected cars repaired.

Source: NHTSA complaints, recalls, investigations and manufacturer recall reports, through July 7, 2021. Updated daily.

Complaints by system

Where the 2018 Newmar Mountain Aire has problems

1 complaint grouped by the system owners reported.

Box size = number of complaints naming that system. Darker = larger share. One complaint can name more than one system.
Complaints by system
SystemComplaintsCrash, fire or injury
Engine10

Source: NHTSA Office of Defects Investigation. Complaints are submitted by the public and are not verified by NHTSA.

16 recalls

2018 Newmar Mountain Aire recalls and how many were fixed

Each ring shows the share of affected cars repaired, from the manufacturer’s latest quarterly report to NHTSA. Recall repairs are free at authorized dealers.

1%repaired · 2023 Q2

Fuel injection system: fuel rail

Recall 21V-506 · Jul 2, 2021 · 1,737 vehicles · 19 repaired

Risk. A fuel leak in the presence of an ignition source increases the risk of a fire.

Problem, fix and repair progress →

71%repaired · 2023 Q2

Fuel injection system: fuel rail

Recall 21V-372 · May 20, 2021 · 1,294 vehicles · 922 repaired

Risk. A fuel leak in the presence of an ignition source increases the risk of a fire.

Problem, fix and repair progress →

34%repaired · 2022 Q2

Electrical system

Recall 20V-421 · Jul 21, 2020 · 3,202 vehicles · 1,092 repaired

Risk. Non-functioning exterior marker lights can increase the risk of a crash.

Problem, fix and repair progress →

66%repaired · 2020 Q4

Equipment: recreational vehicle/trailer

Recall 19V-610 · Aug 20, 2019 · 376 vehicles · 249 repaired

Risk. If the fascia header falls while there is an occupant in the bed, it can increase the risk of an injury.

Problem, fix and repair progress →

Show 12 more recalls
90%repaired · 2020 Q2

Disc: caliper

Recall 18V-859 · Dec 4, 2018 · 308 vehicles · 276 repaired

Risk. Loose brake caliper mounting bolts can reduce brake effectiveness, increasing the risk of a crash.

Problem, fix and repair progress →

100%repaired · 2019 Q2

Equipment: recreational vehicle/trailer

Recall 18V-518 · Aug 6, 2018 · 239 vehicles · 239 repaired

Risk. If the door opens during transit, it can increase the risk of injury or a crash.

Problem, fix and repair progress →

95%repaired · 2020 Q1

Disc: caliper

Recall 18V-505 · Aug 2, 2018 · 119 vehicles · 113 repaired

Risk. If the brake caliper mounting bolts loosen, braking performance may be reduced, increasing the risk of a crash.

Problem, fix and repair progress →

72%repaired · 2020 Q2

Electrical system

Recall 18V-438 · Jun 28, 2018 · 930 vehicles · 667 repaired

Risk. If the slide-out room moves unexpectedly, it can increase the risk of injury.

Problem, fix and repair progress →

99%repaired · 2020 Q1

Visibility: windshield wiper/washer

Recall 18V-387 · Jun 8, 2018 · 77 vehicles · 76 repaired

Risk. If the windshield wipers do not properly contact the windshield, the driver's visibility may be reduced, increasing the risk of a crash.

Problem, fix and repair progress →

77%repaired · 2020 Q1

Fuel system, diesel

Recall 18V-307 · May 11, 2018 · 96 vehicles · 74 repaired

Risk. If the bracket damages the tire, it can cause tire failure, increasing the risk of a crash.

Problem, fix and repair progress →

84%repaired · 2020 Q1

Wiring: fuses and circuit breakers

Recall 18V-236 · Apr 13, 2018 · 653 vehicles · 546 repaired

Risk. Overheating of the electrical connections can increase the risk of a fire.

Problem, fix and repair progress →

80%repaired · 2019 Q4

Electrical system: wiring

Recall 17V-830 · Dec 19, 2017 · 2,915 vehicles · 2,327 repaired

Risk. The build up of heat in the wiring from the loose power connection can increase the risk of a fire.

Problem, fix and repair progress →

6%repaired · 2019 Q4

Equipment

Recall 17V-809 · Dec 15, 2017 · 34,699 vehicles · 2,193 repaired

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

Problem, fix and repair progress →

78%repaired · 2018 Q4

Front: control arm

Recall 17V-195 · Mar 22, 2017 · 595 vehicles · 463 repaired

Risk. A separated ball joint can cause a loss of steering control, increasing the risk of a crash.

Problem, fix and repair progress →

Recalls apply to specific cars. To see whether a recall is still open on yours, enter the 17-character VIN at nhtsa.gov/recalls or with Newmar.

Best & worst years

2018 vs. every other Mountain Aire year

Bars show complaints per model year. Colors show the CarFlaw verdict: complaints weighted for crashes, fires and injuries, adjusted for years on the road and compared with the Mountain Aire median. How we score

'91'94'95'96'97'98'99'00'01'02'03'04'05'06'07'08'09'10'11'12'13'14'15'16'17'18'19'20'21'22'23
  • Avoid
  • Caution
  • Solid
  • Best
  • Not rated
In owners' words

What Mountain Aire owners report

Recent engine complaints filed with NHTSA, shortened. Personal details are removed.

These vehicles, built on a Spartan K3 chassis and powered by a Cummins ISX-12 engine are experiencing very high failure rates in the DEF system control head. When the control head fails, it sends error codes that result in derating engine power dramatically and/or immediate engine shut-down. This…
Complaint 11423856 · Jul 7, 2021

Own a 2018 Mountain Aire?

Decode your VIN to see the recalls for your exact car, then confirm open recalls with NHTSA.