⌘K
Your vehicleHome›Toyota›Prius› 2018
Toyota · Midsize Hatchback

2018 Toyota Prius

Hybrid
Midsize Cars
2 EPA-rated configurations
Data refreshed 2026-10-26
B
Safety Signal
85 / 100 from the NHTSA recall record
Recalls1 critical 1
Complaints5 crash · 1 fire · 2 injured reported 38
Crash ratingNHTSA overall 5★
Fuel economybest combined, EPA 56 mpg
202720262025202420232022202120202019201820172016

The 2018 Toyota Prius is sold in the U.S. as a hybrid midsize hatchback with 2 EPA-rated configurations. The most efficient version, the Prius Eco, is EPA-rated at 56 mpg combined. NHTSA lists 1 recall campaign for this model year, 1 rated critical, which gives it a Safety Signal grade of B. Owners have filed 38 complaints, most often about the visibility/wiper. NHTSA crash-tested it at 5 stars overall.

Toyota Prius — photograph via Wikimedia Commons
Toyota Prius · Photo: TTTNIS · CC0 · Wikimedia Commons

Specs & fuel economy

Source: EPA fueleconomy.gov
ConfigurationPowertrainDriveEngine / motorCityHwyCombAnnual fuel*
Prius EcoHybridFWD1.8L 4-cyl + 207V Li-Ion585356$1,200
PriusHybridFWD1.8L 4-cyl + 202V Ni-MH545052$1,300

*EPA estimate at 15,000 miles/year at EPA reference fuel and electricity prices. fueleconomy.gov record ids: 39753, 39752.

Emissions & certification

Source: EPA emission certificates
ConfigurationSmog ratingEmission standardWhere it can be sold newSmartWay
Prius Eco7 / 10Federal Tier 3 Bin 30 / California LEV-III SULEV30All 50 states (federal, all altitudes); California and states following California standardsSmartWay Elite
Prius7 / 10California LEV-III SULEV30 / Federal Tier 3 Bin 30All 50 states (federal, all altitudes); California and states following California standardsSmartWay Elite

Certified for all fifty states, so it can be registered new anywhere in the U.S.

The smog rating scores tailpipe pollutants other than greenhouse gases, 1 (worst) to 10 (best), and is comparable only within a model year. The standard is the federal bin or California tier the configuration was certified to. Both come from the EPA certificate behind the window sticker.

Specifications filed with NHTSA

Source: NHTSA vPIC

Dimensions Exterior

Body styleSedan/Saloon
Doors5
GVWR classClass 1: 6,000 lb or less (2,722 kg or less)

Engine Basics

Cylinders4
Displacement1.8 L
Engine configurationIn-Line

Engine Output

Horsepower96 hp

Fuel Economy

FuelElectric

Seating

Seat rows2
Seating capacity5 seats

Transmission

Drivetrain4x2
TransmissionContinuously Variable Transmission (CVT)

Driver assistance

Standard: Adaptive cruise control, Anti-lock brakes, Automatic emergency braking, Backup camera, Electronic stability control, Forward collision warning, Lane departure warning, Lane keeping assist, Pedestrian automatic emergency braking

Optional: Parking assist

Filed by the manufacturer with NHTSA under the federal vehicle-identification rule and decoded from the VIN pattern — not a manufacturer press kit, so it describes the configurations we could identify rather than every trim (seen: One/Two, Plus/Premium/Advanced, Two Eco/Three/Three Touring/Four/Four Touring). Figures for the trim you are looking at may differ.

Dimensions & weight

Source: Transport Canada
Length178.7–181.9 in
Width (body, without mirrors)69.3–70.1 in
Height57.9–62.2 in
Wheelbase106.3–109.4 in
Track, front60.2–60.6 in
Track, rear60.2–61.0 in
Curb weight3,064–3,318 lb
Weight distribution, front/rear59/41 to 60/40

Measured by Transport Canada for its Canadian Vehicle Specifications database, which covers the North American versions of each model — here 2 configurations: 5-door Liftback, V 5-door Hatchback. Where a range is shown, those versions differ. Width is the body without mirrors, which is why it can read narrower than a brochure figure. Before we used it we checked it against the US manufacturer press kits we hold (27 Sep 2026): wheelbase agreed within 1% on every vehicle we could compare, length on 98%, and the curb weight fell inside the manufacturer's range on 96%. Source dataset. Contains information licensed under the Open Government Licence – Canada. Licence.

Advertisement

Factory warranty running out?

The 2018 Toyota Prius is in the years where transmission, electronics and drivetrain repairs land on the owner. What an extended plan does and does not cover is worth reading before a dealer quotes you one.

What to check before you buy →

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

Recalls (1)

Source: NHTSA recall database
!critical

Electrical System

J0T
192,347 vehicles 90% reported repaired built Jun 22, 2015 – May 15, 2018
Problem 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. Risk An electrical short can increase the risk of a fire. Fix 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.
NHTSA campaign 18V579000 reported Sep 5, 2018 Toyota Motor Engineering & Manufacturing the full filing, and every vehicle covered →

These are vehicle campaigns — the ones the automaker filed against this model. NHTSA also records equipment recalls, filed by a parts maker against a component (a tyre, a child seat, an aftermarket part), and those are not listed here or counted above. nhtsa.gov/recalls shows both for a VIN.

NHTSA defect investigations

Electrical System:Propulsion System — Pedestrian alert sounds closed

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 rating of 4,536 KG or less or are defined as low-speed vehicles. The standard became fully applicable to all such vehicles manufactured on or after March 1, 2021. On January 27, 2023, NHTSA opened Defect Petition (DP) 22-005 to evaluate the subject mat

Opened Jan 27, 2023 · closed Aug 7, 2023 · action DP22005 · the investigation’s page →

Whether any of this applies to one specific Prius

A campaign covers a build range, not a model year, so two identical-looking cars from 2018 can differ. Both of these check a VIN against the manufacturer’s own list, free, in about ten seconds. Toyota publishes its own lookup because federal rule 49 CFR 573.15 requires it to, and to keep it current to within seven days.

Hear about a recall before the letter does

The manufacturer’s letter is the last step of a recall: it has up to 60 days after filing to mail owners, at the address on the registration. We email you the day NHTSA posts a recall on the 2018 Toyota Prius, with what to do next. Nothing else, ever — no newsletter, no marketing, one-click unsubscribe in every message.

Advertisement

Parts & accessories for the 2018 Toyota Prius

Search by fitment on eBay Motors — OEM take-offs, aftermarket, and the trim pieces dealers no longer stock. The listing and the price are the seller's.

Find parts for this Prius →

Owner complaints

Source: NHTSA complaint database
38complaints filed

5 involved a crash · 1 a fire · 2 injuries · 0 deaths reported

7.8 per 10,000 built · Toyota reported 48,441 Prius built (its Early Warning production report to NHTSA)

Filed per year: 2018: 10 · 2019: 9 · 2020: 2 · 2021: 2 · 2022: 2 · 2023: 3 · 2024: 2 · 2025: 4 · 2026: 4

Most-cited components

Unspecified 6
Visibility/Wiper 6
Engine 6
Exterior Lighting 5
Service Brakes 4
Vehicle Speed Control 4

In owners' own words

Filed with NHTSA by the people who own these cars, one per problem area. Quoted as written, with anything identifying removed.

On dec 2, 2020 while driving on the freeway at about 45-50 MPH our sunroof exploded causing US to get to the side of the road. The shade was closed which saved US from exploding glass. There were no road hazards, no issues other than a spontaneous exploding of our sunroof.
Structure at 6,800 miles Feb 22, 2021 NHTSA owner report · ODI 11397301
The Airbag lights were lit, the person sitting with seatbelt on (flashing) and the person sitting with an inflated airbag in front of them. I ran an OBD2 scan on SRS and got code B1656. Driver seat belt buckle Left Hand.
Air Bags Mar 2, 2024 NHTSA owner report · ODI 11575061
Someone rear-ended my Prius and they were driving a Ford 250 truck pulling a large flatbed truck that had a huge box on it. My seat went forward and backwards - I slammed my knee under the dashboard and then slammed by head into the headrest and I could not reach the pedals after this.
Seats Oct 31, 2023 NHTSA owner report · ODI 11552860
The automatic high beams will occasionally fail to operate and are stuck in low beams until about 2 minutes have passed, or until the automatic high beams switch is turned off to disable the system. This seems to be a software issue, as it seems to occur when an approaching vehicle passes by with bright lights.
Exterior Lighting Mar 10, 2023 NHTSA owner report · ODI 11511131
Stopped at red light, then the car didn't accelerate when hitting gas. Engine revs but the car does not accelerate. It happened multiple time when the car was out in sun with full ac on(100f). Happened once in intersection and almost got hit head on
Power Train Jul 6, 2022 NHTSA owner report · ODI 11472644
My windshield has cracked twice without being struck by an object and without being near another vehicle. Both incidents occurred during normal highway driving. I was not speeding or driving recklessly. Both times required the replacement of the windshield as the crack quickly spread and affected a good portion of the windshield.
Visibility/Wiper at 29,500 miles Mar 4, 2021 NHTSA owner report · ODI 11399109

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Reported by Toyota itself: 45 death-or-injury claims on this model year in its quarterly Early Warning reports to NHTSA (49 CFR 579.21): 51 injured, as claimed, not verified — about 93 per 100,000 built. Every Prius model year, by year and system → Dated and by system, they are exhibit F of the defect dossier.

When owners reported it

Reported at 10k

miles, typically

Half the 25 owner reports with an odometer reading on file fall between 4,000 and 30,000 miles. That is when problems get reported, which is not the same as when they start — and not a failure rate, because nobody knows how many of these cars never had a problem at all.

Too few readings for a curve — the 25 on file: 11 under 10k, 4 10k–20k, 4 20k–30k, 1 30k–40k, 1 70k–80k, 2 80k–90k, 2 150k +.

Odometer readings as filed by owners with NHTSA. Readings under 100 or over 400,000 miles are dropped as data entry rather than history, and a component needs at least 12 readings before a median is shown for it.

Crash ratings

Source: NHTSA NCAP
ConfigurationOverallFrontalSideRolloverRollover risk
5 HB FWD★★★★★★★★★☆★★★★★★★★★☆11%

NHTSA New Car Assessment Program. Standard driver-assist: forward collision warning, lane departure warning, automatic emergency braking.

Service bulletins & campaigns

Source: NHTSA manufacturer communications
Communicationsfiled with NHTSA 351
Most recentmanufacturer date 2026-08-20
Kindsas classified by NHTSA 349 service bulletins, 2 service campaigns

Most often about: Equipment, Electrical System, Structure, Engine, Equipment Adaptive/Mobility.

  • T-SB-0110-20 Rev2 Service bulletin
    2026-08-20 · Engine
  • OBSOLETE NOTICE August 20, 2026: This bulletin is now obsolete. Please see T-SB-0051-26.
  • T-SB-0051-26 Service bulletin
    2026-08-20 · Engine
  • This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries.
  • T-SB-0009-26 Service bulletin
    2026-02-13 · Engine
  • This bulletin includes basic procedures for performing a rescue charge on Ni-MH high voltage (HV) batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing a rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger.
  • T-SB-0119-15 Rev2 Service bulletin
    2026-02-13 · Engine
  • OBSOLETE NOTICE February 13, 2026: This bulletin is now obsolete. Please see T-SB-0009-26.
  • T-SB-0055-24 Rev2 Service bulletin
    2026-01-07 · Unknown Or Other
  • Some 2005 – 2026 Toyota vehicles that have undergone water intrusion may exhibit a condition in which a musty odor is present. Follow the procedures in this bulletin to remediate the odor and address this condition. The purpose of this Service Bulletin is to provide general guidelines and procedures for odor remediation. This Service Bulletin provides a guide on how to prepare and treat the interi
  • T-TT-0790-25 Service bulletin
    2025-08-20 · Electrical System
  • Some customers may experience echoing on the line calling the vehicle when using Bluetooth Hands Free. This is caused by the phone Hands Free volume being too low.
  • T-SB-0058-23 Rev1 Service campaign
    2025-06-13 · Electrical System
  • The air conditioning dye injection tool kit has been developed to aid in identifying the location of air conditioning refrigerant leaks. The procedures outlined in this Service Bulletin aid in locating, inspecting, and repairing refrigerant leaks.
  • T-SB-0110-20 Rev2 Service bulletin
    2024-12-10 · Engine
  • This bulletin includes basic procedures for performing a rescue charge at battery on high voltage (HV) Ni-MH and Li-ion batteries. This bulletin should be used in conjunction with the applicable model and model year Repair Manual while performing the battery rescue charge. The GRX-5100 should be used wherever the Repair Manual references the Toyota Hybrid System (THS) charger.

A service bulletin is the manufacturer telling its dealers how to diagnose or repair a known condition. It is not a recall, not a finding that the vehicle is defective, and the work is not automatically free — though a bulletin is often what a dealer works from when you describe a symptom, so quoting the document number can save a diagnosis. The count is every communication filed; the list shows the most recent, one entry per campaign, because a single campaign is usually filed as several documents on the same day. The summaries are NHTSA's; the full documents come from the manufacturer.

Diagnostic trouble codes on file

Source: NHTSA manufacturer communications and complaints

Codes documented against this model year in the federal record. A code appearing here does not mean this vehicle will set it — it means the code is part of this nameplate-year's documented history.

CodeWhat it meansMost often filed underWhere it appears
P0A7F
P0A7F on Toyota →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Electrical System · Battery →4 bulletins
P0A80
P0A80 on Toyota →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Electrical System · Battery →4 bulletins
B15E6Manufacturer-defined — the meaning is set by the automaker, not the standard.Equipment2 bulletins
U1110
U1110 on Toyota →
Manufacturer-defined — the meaning is set by the automaker, not the standard.Equipment2 bulletins

Generic codes (the second character is 0 or 2) mean the same thing on every vehicle sold in the United States. Manufacturer-specific codes (1 or 3) mean whatever the automaker assigned, and no honest source can define them for you — which is why the ones here carry the evidence instead of a definition. A code is a link when enough separate federal documents name it across the catalogue to be worth a page of its own; the rest are listed here, where the vehicle is the context that makes them mean something.

Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.

At the New York inspection station

Source: New York State DMV

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2018 Toyota Prius failed the emissions check on 0.67% of first inspections — lower than the 3.0% for every 2018 model-year vehicle inspected; and the safety inspection on 2.6% (every 2018 vehicle: 1.9%).

New York inspections 0.67%

failed emissions

892 initial inspections of 876 vehicles.

MeasureThe 2018 PriusEvery 2018 vehicleBehind it
Failed the emissions check0.67%3.0%892
Failed the safety inspection2.6%1.9%892
Air-bag warning lamp stayed lit0.22%0.22%892
Miles driven a year11,07510,002odometer at inspection
Average odometer91,80882,833odometer at inspection

New York’s emissions test on these model years is an on-board diagnostics check: it fails a car whose check-engine light is on or whose self-tests have not finished. First inspections only, so a car that failed and came back is counted once; private and special plates, not taxis, livery or commercial plates. A rate appears only where at least 200 inspections stand behind it. “Every 2018 vehicle” is every 2018 model-year car, SUV and pickup inspected in the same window, all makes. This is the state’s record of test results, not a reliability score by itself. Source: New York State Department of Motor Vehicles, Vehicle Inspections (data.ny.gov, Open NY terms).

Common questions about the 2018 Prius

Source: EPA, NHTSA and manufacturer press kits

Does the 2018 Toyota Prius have any recalls?

NHTSA has posted 1 recall campaign for the 2018 Toyota Prius, 1 of them rated critical. The most serious on file is 18V579000, covering Electrical System. Check your own VIN at nhtsa.gov/recalls; a recall applies to specific build ranges, not every car.

How safe is the 2018 Toyota Prius?

NHTSA gave the 2018 Toyota Prius 5 stars overall in its New Car Assessment Program tests — 4-star frontal crash, 5-star side crash, 4-star rollover. WhichTrim also grades it B (85/100) on its recall record, which is a different question from crash protection.

What is the fuel economy of the 2018 Toyota Prius?

Across the 2 EPA-rated configurations of the 2018 Toyota Prius, the best EPA combined figure is 56 mpg. Figures are the EPA's own, per configuration, and every one is listed above.

What are the dimensions of the 2018 Toyota Prius?

Transport Canada measured it at 178.7–181.9 in long, 69.3–70.1 in wide (body, without mirrors), 57.9–62.2 in tall, on a 106.3–109.4 in wheelbase. Curb weight: 3,064–3,318 lb depending on configuration. Those are its measurements of the North American versions; every figure is in the table above.

What do owners complain about on the 2018 Toyota Prius?

Owners have filed 38 complaints with NHTSA about the 2018 Toyota Prius, most often about unspecified, visibility/wiper, engine. Of those, 5 involved a crash, 1 a fire, 2 reported injuries. Complaints are unverified owner reports, so treat the pattern as a signal and the individual report as an anecdote.

How clean is the 2018 Toyota Prius?

The EPA smog rating for the 2018 Toyota Prius is 7 out of 10. That score covers tailpipe pollutants other than greenhouse gases, and it only compares vehicles within the same model year. It is certified for all fifty states, so it can be registered new anywhere in the U.S. Its configurations were certified to different standards — California LEV-III SULEV30, Federal Tier 3 Bin 30 — which the table above lists per configuration.

Are there service bulletins for the 2018 Toyota Prius?

The manufacturer has filed 351 service bulletins and related communications with NHTSA for the 2018 Toyota Prius, most often covering equipment, electrical system, structure. The most recent is dated 2026-08-20. A bulletin is not a recall: it is the repair procedure a manufacturer sends its dealers for a condition it knows about, and the work is not automatically paid for. It is still worth knowing — if the symptom matches, quoting the bulletin number at the service desk can save a diagnosis. The document numbers and summaries are listed above.

How does the 2018 Toyota Prius do at state inspection?

In New York’s inspection lanes over the 12 months to Oct 10, 2026, the 2018 Toyota Prius failed the emissions check on 0.67% of first inspections — lower than the 3.0% for every 2018 model-year vehicle inspected; and the safety inspection on 2.6% (every 2018 vehicle: 1.9%). The figures are New York State DMV’s own inspection records, first inspections only, and the table above sets each one against every vehicle of the same model year.

What we hold, and what an empty row means

Paid vehicle-history reports will not tell you the difference between “nothing happened to this car” and “we never received that record” — both of the big two say as much in their own help pages. Most of what is on this page comes from complete federal registers, so we can tell you which is which, row by row.

DataHeldSourceWhat it covers — or what empty means
Fuel economy & configurations2 configurationsEPA certification recordsEvery configuration the EPA certified for sale, with its own test figures.
Emission certificates2 configurationsEPA emission certificatesSmog rating, standard and the sales area that decides where the car can be sold new.
Recalls1NHTSA recall campaignsA complete federal register: every campaign covering this model year, with severity and advisory flags.
Owner complaints38NHTSA complaint databaseAlso complete, but unverified: these are reports owners filed, not findings. Counts scale with how many were sold.
Crash ratings1 testedNHTSA NCAPOnly the configurations NHTSA chose to crash-test, which is never all of them.
Service bulletins351NHTSA manufacturer communicationsEverything the manufacturer told its dealers about a defect or malfunction, short of a recall.
Investigations1NHTSA Office of Defects InvestigationOpen and closed defect investigations, with the agency's own narrative.
Driver-assist crash reportsnoneNHTSA Standing General Order 2021-01No report has been filed. Only entities named in the order report, and only crashes they hear of — so this is also what an unequipped car, or a manufacturer without telematics, looks like.
Specifications filed with NHTSA12 fieldsNHTSA vPIC, decoded from VIN patternsWhat the manufacturer filed under the federal VIN rule — a configuration, not the full trim ladder.
Measured dimensions7 fieldsTransport Canada, Canadian Vehicle SpecificationsLength, width, height, wheelbase, track and curb weight, measured on the North American versions.
Trims, pricing & equipmentnoneManufacturer press kitWe have not transcribed a press kit for this model year yet. This is our gap, not the manufacturer's — the one row here where an empty cell means we are behind.

Rebuilt nightly; this page was generated 2026-10-26. Every figure above is traceable to the source named beside it, and the JSON for this page carries the same values with their identifiers.

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). The most serious recall counts in full and each further one counts 85% of the one before, because a vehicle sold in millions is recalled more often than a rare one without being more dangerous — and because a flat subtraction bottomed the scale out, scoring a vehicle with 22 recalls within a point of one with six. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Read it as what it counts: recall campaigns on the federal record, weighted by severity. The damping reduces the sales bias by roughly 40% but does not remove it: like our complaint counts, this is not normalized by how many were sold, so a best-seller still scores somewhat worse than an obscure model with the same real risk. NHTSA crash ratings, do-not-drive and park-outside advisories, and the crash, fire, injury and death counts in owner complaints are reported separately on every page and never blended into the letter — a vehicle can hold five stars and a poor letter at once, and where that happens we say so rather than leave you to notice. Because the scale subtracts from a clean sheet, a model year too new to have been recalled, complained about or bulletined scores full marks on an empty record; we label those grades provisional rather than present them as earned.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed nightly.

JSON for this page · API