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Other or unknownPart report

2018 Lincoln MKX Other or unknown Problems

Complaints
8about this part
Share
26%of 31 total for the year
Median mileage
—not reported
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 8 complaints about the other or unknown of the 2018 Lincoln MKX, 26% of the 31 complaints for this model year.

Fewer than 15 complaints name this part, so treat the figures as a rough indication only.

Example complaints

Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.

“Unknown/Uncertain as to why the floor is wet on right rear passenger. Dealer unable to detect why floor board is wet. I need answers because this is a health risk/ lungs risk for my family and myself due to questionable mold May probably grow from the wet carpet and wet spell”

NHTSA complaint #11499828, filed 2023-01

“Subject: Urgent Health Risk Due to Mold in Lincoln MKX & Additional Considerations I'm submitting a formal complaint regarding our Lincoln MKX, purchased in 2018 with an extended warranty valid through 2026. A significant water leak has resulted in extensive mold and mildew buildup, posing severe health risks, particularly to my immunocompromised wife. Despite minimal use of the vehicle, exacerbated by reduced mobility during the COVID-19 pandemic declared by the WHO on March 11, 2020, we've discovered this longstanding issue, indicating it likely existed since purchase. …”

NHTSA complaint #11574897, filed 2024-03

“When I utilize my ac or heat without pressing a certain button after a while I start smelling a burning smell coming through the vents. When I'm outside the vehicle I smell it as well. The smell is hard to pinpoint. A dealership told me that maybe I needed to change my air filters. However the burning smell still would happen just the same. Then they checked to see if anything(such as plastic or anything) was stuck to any components that get hot to no avail. But something is wrong and it's scary. Also my vehicle has a very rough idle which sometimes can feel like a rumble. …”

NHTSA complaint #11512511, filed 2023-03

“The 2018 Lincoln MKX Third Brake Light lens cracked off in 3 pieces while going through the automatic car wash dryer on the evening of Friday March 20, 2026. This appears to be an Engineering design issue.”

NHTSA complaint #11726271, filed 2026-03

“Was advised by a law enforcement officer the high-mount stop lamp lens had detatched from the lamp housing. Apparently, the adhesive holding the plastic lens had deteriorated and allowed seperation of the components. The LED circuit board is now exposed to the elements. This without a doubt will cause the CHMSL to fail due to water and salt intrusion. Additionally, the non-diffused LED's are blinding drivers behind this vehicle at night. This failure occurred on the highway, and the lens nearly struck a car behind me.”

NHTSA complaint #11687125, filed 2025-09

Related service bulletins

Other or unknown: other model years

YearComplaintsShare of year
2018826%
2017713%
20162214%
2015632%
2014720%
20132213%
201278%
20112416%
201044%
200969%
200862%
2007124%

Other parts of the 2018 Lincoln MKX

Brakes
8 complaintsElectrical system
5 complaintsEngine
3 complaintsExterior lighting
3 complaintsAir bags
2 complaintsEngine cooling
2 complaintsSteering
2 complaintsWheels
2 complaintsBack-over prevention (rear camera)
1 complaintsElectronic stability control
1 complaintsForward collision avoidance
1 complaintsSeats
1 complaints

← All problems reported for the 2018 Lincoln MKX

About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.

To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology