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2018 Toyota Prius: Problems, Recalls and MPG

What this means

NHTSA lists 1 recall campaign for the 2018 Toyota Prius, most recently filed September 2018. Owners have filed 37 complaints with NHTSA, most often about the unknown or other. In NHTSA crash tests it earned 5 stars overall.

Data summary generated from official records. Methodology Data: NHTSA, DOT, EPA · Refreshed Oct 6, 2026
Caution Fewer than 50 complaints filed. With this few reports, patterns may not be meaningful.
Compare

Recalls (1)

NHTSA lists 1 recall campaign for the 2018 Toyota Prius. Check whether yours was repaired with NHTSA's free VIN lookup ↗

Only NHTSA and your automaker know whether your specific car was repaired. PlainVIN shows every recall campaign listed for a model year, with the official text and how many cars have been fixed so far.

Check on NHTSA ↗
Listed for 2018 Toyota Prius. Not checked against your VIN.
Recall 18V579000 Filed Sep 5, 2018

Engine Wire Harness May Chafe and Short

Electrical system · wiring
Official NHTSA text
Summary
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2016-2018 Toyota Prius vehicles. A portion of the engine wire harness connected to the hybrid Power Control Unit (PCU), could contact the cover at this connection and wear, causing an electrical short circuit.
Consequence
An electrical short can increase the risk of a fire.
Remedy
Toyota will notify owners, and dealers will inspect the engine wire harness assembly and replace it if damage is found. A protective sleeve or protective tape will be included to prevent any future damage. These repairs will be performed free of charge. The recall began October 30, 2018. Owners may contact Toyota customer service at 1-888-270-9371. Toyota's number for this recall is J0T.
90.4% repairedof 192,347 vehicles
Manufacturer report to NHTSA · Source: US DOT recall completion data, retrieved Oct 6, 2026
Check your VIN on NHTSA or ask a dealer to check campaign 18V579000

PlainVIN shows public government records for education. It isn't a vehicle inspection or legal advice. Check your own VIN with NHTSA or your dealer.

Owner complaints (37)

37 complaints filed with NHTSA (owner reports, not verified findings). The unknown or other is mentioned most often.

5involved a crash
0involved a fire
2injuries reported
0deaths reported

As reported by owners in their complaints. These are reports, not NHTSA findings.

Most-reported components

Complaints filed with NHTSA for the 2018 Toyota Prius, by component (top 10). One complaint can list several components, so these add up to more than 37.Source: NHTSA ODI owner complaints · Retrieved Oct 6, 2026 · Report a data error

How 2018 compares with other Prius years

Best and worst Prius years →
2014201520162017201820192020202120222023
This year (2018)Other yearsStill collecting reports

Counts are owner reports, not failure rates. Higher sales years tend to draw more reports. Owners are still filing reports for recent model years, so these counts will grow. Source: NHTSA ODI, retrieved Oct 6, 2026.

Crash tests: 5 stars overall

Overall★★★★★
Frontal crashDriver 4★ · Passenger 4★★★★★☆
Side crashDriver 5★ · Passenger 5★★★★★★
Side pole★★☆☆☆
RolloverRollover risk 10.7%★★★★☆
Front seat of a modern car with the seat belt buckled across the passenger seat
Compare fairly. Compare stars only between vehicles of similar size and weight. Ratings apply to the tested configuration.

Source: NHTSA 5-Star Safety Ratings (NCAP), 2018 Toyota Prius 5 hb fwd, retrieved Oct 6, 2026.

Fuel economy: up to 56 mpg combined

56
mpg combined
58
city
53
highway
EPA annual fuel cost
$1,200
CO₂ tailpipe
158 g/mi
EPA class
Midsize Cars

What it costs you to run

$1,166per year
$97per month
268gallons a year

Miles ÷ 56 mpg × $4.354 (EIA US average regular, week of Oct 5, 2026, all taxes included). Source: EPA · EIA.

EPA label estimates from lab tests; your mileage will vary.

Specs by configuration

2018 Toyota Prius configurations with EPA data
Engine · transmissionDriveCity / Hwy / CombEPA $/yrCO₂ g/mi
1.8 L 4-cyl · CVTFront-Wheel Drive58 / 53 / 56$1,200158
1.8 L 4-cyl · CVTFront-Wheel Drive54 / 50 / 52$1,300170

Source: EPA fuel economy data, retrieved Oct 6, 2026. Configurations are listed when EPA and NHTSA records match.

Used blue SUV on a sunny dealer lot with its hood open and a clipboard on the fender

Looking at a 2018 Prius for sale?

Print a one-page buyer's checklist: each recall campaign with a box to tick when the seller shows proof of repair, the top complaint areas to inspect, crash stars, MPG, and a link back to this page.

All Prius years

Where to next

2018 Toyota Prius FAQ

How many recalls does the 2018 Toyota Prius have?

NHTSA lists 1 recall campaign: 18V579000 (electrical). Use NHTSA's VIN lookup to see whether a specific car was repaired.

What are the most common 2018 Toyota Prius problems?

Owners filed 37 complaints with NHTSA. Unknown or other (6), Exterior lighting (5), Visibility/wiper (5) are mentioned most. These are owner reports, not verified findings.

What mpg does the 2018 Toyota Prius get?

EPA rates the 1.8 L 4-cyl · CVT version at 58 city, 53 highway and 56 combined mpg. Other configurations are listed in the fuel economy section.

What safety rating did the 2018 Toyota Prius get?

NHTSA rated the 2018 Toyota Prius 5 hb fwd 5 stars overall, with 4 stars frontal, 5 stars side and 4 stars rollover (10.7% rollover risk).

How does the 2018 Prius compare with other years?

Among the 2014–2021 Toyota Prius model years at least five years old, the 2021 drew the fewest complaints (6) and the 2014 the most (207). The 2018 drew 37. Counts are owner reports, not failure rates.

How this page was madeSources, processing, limits, review and changes

Processing

  • Complaints are counted per component. One complaint can list several, so component totals add up to more than the total.
  • Fuel cost = miles per year ÷ EPA combined mpg × EIA weekly price for your region.

Limitations

  • Complaint counts are owner reports, not verified findings or failure rates. There is no sales denominator.
  • Recall campaigns are listed for the model year. Only NHTSA and the automaker know whether a specific car was repaired.
  • Recent model years are still collecting reports.

Review

Data compiled automatically from the official files listed here.

Changelog

  • 2026-10-06 Data refreshed from the official files.
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