AutoUtility currently tracks 66 official NHTSA owner defect complaints for the 2018 Nissan Leaf. Driver Assistance & Safety Tech issues are the most frequently reported category, appearing in 23 complaints (34.8% of submitted records). Among these NHTSA complaint records, 9 filings cite a crash, 1 cites a fire, 3 report one or more injuries.

Key Problem Findings
  • Total NHTSA Complaints: 66 reports
  • #1 Reported Problem Area: Driver Assistance & Safety Tech (23 reports • 34.8% of submitted complaints)
  • Secondary Problem Areas: Brakes & Traction Control (20), Electrical System (18)
  • Crash-Citing Complaints: 9 filings
  • Fire-Citing Complaints: 1 filings
  • Complaints Reporting Injuries / Fatalities: 3 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
66
Submitted to NHTSA ODI
Crash-Citing Complaints
9
Filings citing a collision
Fire-Citing Complaints
1
Filings citing smoke or fire
Complaints Reporting Injuries
3
Filings citing one or more injuries
Complaints Reporting Fatalities
0
Consumer filings citing fatalities

Most Reported Problems for 2018 Nissan Leaf

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

#1 Problem Area 34.8% of complaints

Driver Assistance & Safety Tech

23 owner complaints submitted to NHTSA ODI
⚠️ NHTSA Recall Context

NHTSA records list 3 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.
⚠️ 5 crash reports
#2 Problem Area 30.3% of complaints

Brakes & Traction Control

20 owner complaints submitted to NHTSA ODI
⚠️ 5 crash reports 🩹 1 injury report entry
#3 Problem Area 27.3% of complaints

Electrical System

18 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report 🔥 1 fire report
#4 Problem Area 18.2% of complaints

Fuel & Propulsion System

12 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report
#5 Problem Area 9.1% of complaints

Air Bags & Restraints

6 owner complaints submitted to NHTSA ODI
⚠️ 1 crash report
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%.

Recent NHTSA Owner Reports for 2018 Nissan Leaf

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

Brakes & Traction Control NHTSA ODI ID: #11754400
Filed: 08/03/2026

"vehicle brakes went out on the driver during normal operation."

Incident Date: 03/03/2026 • Raw NHTSA Component: SERVICE BRAKES
Brakes & Traction Control NHTSA ODI ID: #11753926
Filed: 07/31/2026

"vehicle was being driven like normal with no warning lights or icons. vehicle was bring driven at 35 miles an hour when suddenly the ABS fault message appeared on the dash, the dash started beeping and brakes became very hard to press."

Incident Date: 07/28/2026 • Raw NHTSA Component: SERVICE BRAKES
Electrical System NHTSA ODI ID: #11750729
Filed: 07/16/2026

"This is the second high-voltage traction battery failure on this vehicle. The original HV battery failed and was replaced by Nissan under warranty at an authorized dealer on XXX, at approximately 59,000 miles. The Nissan-manufactured replacement pack has now failed after approximately 16 months in..."

Incident Date: 06/29/2026 • Raw NHTSA Component: ELECTRICAL SYSTEM
Fuel & Propulsion System NHTSA ODI ID: #11749783
Filed: 07/11/2026

"Car was fast charged on July 9th. 2026. After fast charging from 13% to 80%, and driving for a few miles, the overheating warning came on and car was forced to stop on the side of a busy highway until the engine cooled off. While there is an active recall for a similar problem (24V700), my car is..."

Incident Date: 07/09/2026 • Raw NHTSA Component: ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM
Visibility, Wipers & Glass NHTSA ODI ID: #11741152
Filed: 05/31/2026

"Fail component: mechanical linkage (transmission rod) between the motor and the wiper arms. The ball pops out of the socket resulting in the wipers not working despite motor running. This happened with full speed wipers running. I repaired it, and two weeks later it disconnected again while running..."

Incident Date: 05/28/2026 • Raw NHTSA Component: VISIBILITY/WIPER
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 Nissan Leaf

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

Model Year NHTSA Complaints Crash Reports Safety Recalls Detailed Report
2015 Nissan Leaf 109 8 4 View 2015 Problems →
2016 Nissan Leaf 36 1 4 View 2016 Problems →
2017 Nissan Leaf 0 0 2 View 2017 Problems →
2018 Nissan Leaf Current Page 66 9 4 Current
2019 Nissan Leaf 253 4 5 View 2019 Problems →
2020 Nissan Leaf 162 1 6 View 2020 Problems →
2021 Nissan Leaf 53 2 4 View 2021 Problems →
2022 Nissan Leaf 90 7 4 View 2022 Problems →
2023 Nissan Leaf 19 6 3 View 2023 Problems →
2024 Nissan Leaf 5 0 0 View 2024 Problems →
2025 Nissan Leaf 7 0 0 View 2025 Problems →
2026 Nissan Leaf 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 Nissan Leaf

Complete distribution of consumer defect reports across all 36 granular NHTSA system and subsystem classifications

Vehicle Component / System Total Complaints Crash Reports Fire Reports Reported Injury Entries Reported Fatality Entries
SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 7 1 0 0 0
Electrical System NHTSA category: ELECTRICAL SYSTEM 6 0 0 0 0
Service Brakes NHTSA category: SERVICE BRAKES 4 0 0 0 0
Structure & Body NHTSA category: STRUCTURE 4 0 0 0 0
Vehicle Speed Control NHTSA category: VEHICLE SPEED CONTROL 4 2 0 0 0
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 3 0 0 0 0
Other / Uncategorized NHTSA category: UNKNOWN OR OTHER 3 0 0 0 0
Air Bags NHTSA category: AIR BAGS 2 1 0 0 0
Forward Collision Avoidance NHTSA category: FORWARD COLLISION AVOIDANCE 2 0 0 0 0
Fuel & Propulsion System NHTSA category: FUEL/PROPULSION SYSTEM 2 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,ENGINE 2 0 1 0 0
Steering NHTSA category: STEERING 2 0 0 2 0
Visibility & Wipers NHTSA category: VISIBILITY/WIPER 2 0 0 0 0
AIR BAGS,SEAT BELTS 1 0 0 0 0
ELECTRICAL SYSTEM,AIR BAGS,FUEL/PROPULSION SYSTEM 1 0 0 0 0
ELECTRICAL SYSTEM,ELECTRONIC STABILITY CONTROL (ESC) 1 0 0 0 0
ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
ELECTRICAL SYSTEM,SERVICE BRAKES,FUEL/PROPULSION SYSTEM 1 1 0 0 0
ELECTRICAL SYSTEM,VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Equipment & Accessories NHTSA category: EQUIPMENT 1 0 0 0 0
POWER TRAIN,ELECTRICAL SYSTEM,FUEL/PROPULSION SYSTEM 1 0 0 0 0
Seat Belts NHTSA category: SEAT BELTS 1 0 0 0 0
SERVICE BRAKES,ENGINE 1 1 0 0 0
SERVICE BRAKES,ENGINE,FUEL/PROPULSION SYSTEM 1 0 0 0 0
SERVICE BRAKES,FUEL/PROPULSION SYSTEM 1 0 0 0 0
STEERING,AIR BAGS,WHEELS 1 0 0 0 0
STEERING,VEHICLE SPEED CONTROL,FORWARD COLLISION AVOIDANCE 1 0 0 0 0
STEERING,VEHICLE SPEED CONTROL,SERVICE BRAKES 1 0 0 0 0
Tires NHTSA category: TIRES 1 0 0 0 0
UNKNOWN OR OTHER,SERVICE BRAKES 1 1 0 1 0
VEHICLE SPEED CONTROL,ENGINE 1 0 0 0 0
VEHICLE SPEED CONTROL,SERVICE BRAKES,ENGINE 1 1 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER 1 0 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,FORWARD COLLISION AVOIDANCE 1 1 0 0 0
VEHICLE SPEED CONTROL,UNKNOWN OR OTHER,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 (66). 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 Defect Petition (DP) ODI Action #DP22005
Opened: 2023-01-27 • Closed: 2023-08-07

Pedestrian alert sounds

Affected Component: ELECTRICAL SYSTEM:PROPULSION SYSTEM

NHTSA received a petition on or about July 18, 2022, requesting that Federal Motor Vehicle Safety Standard (FMVSS) 141 be applied to all electric and hybrid vehicles operating in the United States. The petition can be reviewed at NHTSA.gov under ODI Number 11486072. FMVSS 141 establishes performance requirements for pedestrian alert sounds for motor vehicles. The standard applies to hybrid and electric vehicles that have a gross vehicle weight ra...

✓ Resulted in Safety Recall Campaign: 22V063000 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.