Federal complaint record · Nissan Altima · model year 2018

2018 Nissan Altima

Owners submitted 223 federal complaint reports about this model year, placing it at the 41th percentile for complaint intensity within its 2016 to 2020 midsize sedan cohort. The largest reported component group is other. Sample sizes and limitations are shown below.

Other · 19% · group n = 60Brakes · 15% · group n = 49Electrical · 12% · group n = 37Airbags · 11% · group n = 36Driver assistance · 7% · group n = 23
223
Complaint records on file
36,000
Median mileage at the reported problem · 110 complaints reported mileage
19%
Of classified component reports name other · group n = 60
41th
Complaint-intensity percentile in a cohort of 48 model years

Other · 2 in ten classified complaints

Where this record concentrates

All failure files
Component group 01 · Other19%

Other reports

Nissan Altima · model year 2018

Reports in this group60
Share of classified reports19%
Component groups on file6
Open the failure files

Adjacent model years · same badge, different data

The complaint signal has a shape

Compare model years
2017
0.2complaints per 1,000 estimated vehicle-years
385 matched incidents
This car
2018
0.1complaints per 1,000 estimated vehicle-years
223 matched incidents
2019
0.2complaints per 1,000 estimated vehicle-years
224 matched incidents

The line compares submitted complaints per 1,000 estimated vehicle-years, not failures per 1,000 cars. Vehicle-years use compiled US sales, a 0.25 prior-calendar-year plus 0.75 current-calendar-year model-year allocation, and the shipped survival curve. Rates appear only where estimated vehicles in operation are at least 5,000.

From the record · recurring narrative clusters

What recurring complaint clusters describe

How clusters are built
Brake performance · 37 reports

Reports describe braking performance concerns

Cluster 1 of 32018 Nissan Altima
Airbag concerns · 27 reports

Reports describe airbag warning or deployment concerns

Cluster 2 of 32018 Nissan Altima
Transmission behavior · 19 reports

Reports describe harsh shifting, slipping, or shuddering

Cluster 3 of 32018 Nissan Altima

Cluster summaries paraphrase recurring symptoms reported to NHTSA. They are aggregate descriptions, not individual verbatim reports.

Records through 2026-07-19Published 2026-08-02 · Updated 2026-07-19

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NHTSA consumer complaint records can reveal recurring patterns across published model years. MotorCensus summarizes those records as one complaint-signal index, with a 95% interval and sample size, updated with each data snapshot.

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