AutoUtility currently tracks 52 official NHTSA owner defect complaints for the 2018 Lincoln Navigator. Powertrain & Transmission issues are the most frequently reported category, appearing in 20 complaints (38.5% of submitted records). Among these NHTSA complaint records, 3 cite a fire, 1 reports one or more injuries.

Key Problem Findings
  • Total NHTSA Complaints: 52 reports
  • #1 Reported Problem Area: Powertrain & Transmission (20 reports • 38.5% of submitted complaints)
  • Secondary Problem Areas: Engine & Cooling (11), Electrical System (8)
  • Crash-Citing Complaints: 0 filings
  • Fire-Citing Complaints: 3 filings
  • Complaints Reporting Injuries / Fatalities: 1 injury filings • 0 fatality filings
Reporting Methodology: Statistics describe unverified consumer submissions voluntarily filed with NHTSA. Complaint volume is not normalized for vehicle sales volume or miles driven. Multiple components can be cited within a single owner complaint submission.
Total Complaints
52
Submitted to NHTSA ODI
Crash-Citing Complaints
0
Filings citing a collision
Fire-Citing Complaints
3
Filings citing smoke or fire
Complaints Reporting Injuries
1
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2018 Lincoln Navigator

Top automotive subsystem defect categories ranked by unique owner complaint volume in federal records

#1 Problem Area 38.5% of complaints

Powertrain & Transmission

20 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 2 official safety recall campaigns for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
🔥 1 fire report
#2 Problem Area 21.2% of complaints

Engine & Cooling

11 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#3 Problem Area 15.4% of complaints

Electrical System

8 owner complaints submitted to NHTSA ODI
🔥 1 fire report
#4 Problem Area 9.6% of complaints

Steering System

5 owner complaints submitted to NHTSA ODI
✓ 0 crashes or fires cited
#5 Problem Area 9.6% of complaints

Driver Assistance & Safety Tech

5 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 1 official safety recall campaign for this model year involving the same broad component area:

*Component overlap means an official recall exists for the same broad vehicle system. It does not establish that an individual owner complaint was caused by, covered by, or resolved through that recall.
✓ 0 crashes or fires cited
Domain Share Note: Share percentage represents the proportion of unique complaint filings referencing each vehicle system. Because single complaints may cite multiple systems (such as engine and electrical simultaneously), domain percentages represent individual category incidence and may sum to over 100%.

Symptoms Mentioned in NHTSA Owner Reports for 2018 Lincoln Navigator

Specific mechanical, electrical, and driver-assist defect symptoms identified via deterministic narrative analysis

AutoUtility uses deterministic phrase matching to identify recurring symptom descriptions within consumer-submitted NHTSA complaint narratives.

Powertrain & Transmission 15.4% of complaints

Loss of Motive Power While Driving

8 complaint narratives describe this symptom
Symptom Identification Method: A complaint may describe more than one symptom, so percentages may sum to more than 100%. Symptom identification reflects text contained in consumer-submitted complaint records and does not establish a confirmed mechanical diagnosis.

Recent NHTSA Owner Reports for 2018 Lincoln Navigator

Representative defect filings submitted by owners to the NHTSA Office of Defects Investigation

Powertrain & Transmission NHTSA ODI ID: #11758298
Filed: 08/20/2026

"The contact's wife owns a 2018 Lincoln Navigator. The contact stated that while driving at various speeds, the gear shifter independently shifted to park and other gears while driving over a railroad track. The vehicle was turned off and restarted and operated as intended. A dealer was contacted...."

Incident Date: 07/03/2026 • Raw NHTSA Component: POWER TRAIN
Powertrain & Transmission NHTSA ODI ID: #11758071
Filed: 08/19/2026

"I have experienced harsh shifting from gear 1 to 2 and as well from 2nd to 3rd gear. This results in delayed acceleration at expressway onramps and when turning into forward traffic. This is a known risk with unresolved recall 26S48 related to transmission parking system dammage and related..."

Incident Date: 05/04/2026 • Raw NHTSA Component: POWER TRAIN
Engine & Cooling NHTSA ODI ID: #11751102
Filed: 07/17/2026

"We purchased a 2018 Lincoln Navigator L in 2022 with 29,489 miles, and it has been great. We are at 64,351 miles, and it is making the cold-start rattling noise. We have called Lincoln for assistance, and they are refusing to help. They stated that there is no help. I took it to Duval Ford, and..."

Incident Date: 07/07/2026 • Raw NHTSA Component: ENGINE
Other / Miscellaneous NHTSA ODI ID: #11749952
1 Injury Entry Filed: 07/13/2026

"The other weekend, we were unloading the back of the Lincoln when all of a sudden the liftgate came down on us. Fortunately, we were able to back away in time... Later that weekend, my son was unloading the back and it came down and hit him in the head to the point it made him cry (and he is a..."

Incident Date: 07/05/2026 • Raw NHTSA Component: UNKNOWN OR OTHER
Powertrain & Transmission NHTSA ODI ID: #11747391
Filed: 06/30/2026

"The contact owns a 2018 Lincoln Navigator. The contact stated that while driving at 70 MPH, the transmission seized, and the vehicle failed to accelerate. The contact stated that several unknown warning lights were illuminated during the failure. Additionally, the brake warning light was..."

Incident Date: 06/01/2026 • Raw NHTSA Component: POWER TRAIN
Consumer Narrative Notice: Excerpts are sanitized text descriptions submitted by vehicle owners to the federal ODI database. They reflect the reporting consumer's observations at the time of filing and have not been independently confirmed by vehicle manufacturers or government investigators.

Complaint History for Lincoln Navigator

Reported defect complaint volume across sibling model years (2015–2026)

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Lincoln Navigator 21 2 4 View 2015 Problems →
2016 Lincoln Navigator 25 0 4 View 2016 Problems →
2017 Lincoln Navigator 30 2 5 View 2017 Problems →
2018 Lincoln Navigator Current Page 52 0 12 Current
2019 Lincoln Navigator 73 3 10 View 2019 Problems →
2020 Lincoln Navigator 31 2 13 View 2020 Problems →
2021 Lincoln Navigator 31 2 12 View 2021 Problems →
2022 Lincoln Navigator 20 3 14 View 2022 Problems →
2023 Lincoln Navigator 6 0 8 View 2023 Problems →
2024 Lincoln Navigator 15 3 7 View 2024 Problems →
2025 Lincoln Navigator 11 0 6 View 2025 Problems →
2026 Lincoln Navigator 0 0 2 View 2026 Problems →
Comparative Disclaimer: Complaint totals are unadjusted historical counts and are not normalized for vehicles sold, active fleet size, or total road mileage. Newer model years naturally have had less calendar exposure time to accumulate owner filings.

Detailed NHTSA Component Breakdown for 2018 Lincoln Navigator

Complete distribution of consumer defect reports across all 24 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
Powertrain NHTSA category: POWER TRAIN 13 0 0 0 0
Engine NHTSA category: ENGINE 6 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 6 0 1 1 0
Back Over Prevention / Camera NHTSA category: BACK OVER PREVENTION 3 0 0 0 0
Steering NHTSA category: STEERING 3 0 0 0 0
POWER TRAIN,ENGINE 2 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 2 0 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,EXTERIOR LIGHTING 1 0 0 0 0
ELECTRICAL SYSTEM,LANE DEPARTURE 1 0 0 0 0
ELECTRICAL SYSTEM,SEATS 1 0 1 0 0
ELECTRICAL SYSTEM,STRUCTURE 1 0 0 0 0
ENGINE,ELECTRICAL SYSTEM 1 0 0 0 0
EXTERIOR LIGHTING 1 0 0 0 0
Fuel System NHTSA category: FUEL SYSTEM, GASOLINE 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 1 0 0 0 0
POWER TRAIN,ENGINE,FUEL/PROPULSION SYSTEM 1 0 1 0 0
POWER TRAIN,WHEELS,LANE DEPARTURE 1 0 0 0 0
Seats & Restraints NHTSA category: SEATS 1 0 0 0 0
STEERING,POWER TRAIN,ELECTRICAL SYSTEM 1 0 0 0 0
STEERING,POWER TRAIN,ENGINE 1 0 0 0 0
Suspension NHTSA category: SUSPENSION 1 0 0 0 0
Visibility / Glass NHTSA category: VISIBILITY 1 0 0 0 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 1 0 0 0 0
Data Attribution & Reporting Methodology: Complaints are unverified voluntary submissions to the NHTSA Office of Defects Investigation (ODI). Because multiple vehicle components can be cited within a single owner complaint submission, component-level rollups may sum to more than the unique complaint count (52). Injury and fatality entries in the detailed table reflect raw values entered by reporting consumers across individual submissions; they are not deduplicated casualty statistics and may include duplicate or unverified entries. Complaint volume is not normalized for sales volume or vehicle mileage and does not represent an audited component failure rate.

Official NHTSA Defect Investigations (1)

1 CLOSED

Formal safety defect inquiries and engineering analyses opened by the NHTSA Office of Defects Investigation (ODI)

Official Federal Inquiries: NHTSA opens a defect investigation when safety screening or consumer defect trends indicate a potential unreasonable safety risk. An open investigation is a formal inquiry and does not by itself confirm a defect or result in a mandatory recall.
CLOSED Recall Query (RQ) ODI Action #RQ24015
Opened: 2024-11-15 • Closed: 2025-07-23

Seat Belt Retractor Pretensioner Inadvertent Deployment

Affected Component: SEAT BELTS:PRETENSIONER

On November 22, 2023, the Office of Defects Investigation (ODI) opened Preliminary Evaluation (PE) PE23021 to investigate complaints of front seat belt retractor pretensioner inadvertent deployment in model year (MY) 2019 Ford Expedition vehicles manufactured by Ford Motor Company. Some complaints alleged hearing a loud, explosion-like sound immediately followed by the seat belt tightening around the occupant’s torso area. The complaints did no...

✓ Resulted in Safety Recall Campaign: 25V197 Official NHTSA File →
Official US Government Data Provenance

The complaint records on this page are retrieved directly from the NHTSA Office of Defects Investigation (ODI) public database.

Local Production Store Compiled: August 2026 • Deterministic Audited Dataset • Zero Dynamic External API Runtime Latency.