2018 Toyota Prius Prime (PHEV) reliability
Owners have filed 15 complaints with NHTSA about the 2018 Toyota Prius Prime (PHEV) over 9 years — 1 per year. That is fewer complaints per year than most Prius Prime (PHEV) years here — under the median of the other years, which is 3. NHTSA has no recalls on file for this model year.
15
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0
9
The complaints owners file most often name Air bags (2 of 15), then Fuel and propulsion system (2) and Powertrain (2). Those filings include 4 that report a crash and 2 that report an injury.
The 2017 Prius Prime (PHEV) has 42 complaints, 6 per year, and the 2019 has 8 complaints, 2 per year. The 2018 has fewer complaints per year than the 2017. The 2018 has fewer complaints per year than the 2019.
The complaint rate is complaints filed in this year’s first 3 years on the road, divided by however many of those years have passed. Recalls are a separate count. The numbers are for the US-market 2018 Toyota Prius Prime (PHEV). How we count. Data as of .
Recalls (0)
No recalls on file with NHTSA for this model year.
Complaints by component (15 total)
Show 5 more Show less
4
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2
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Complaints filed per year
Excerpts from recent NHTSA complaint filings
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"On at least 4 occasions when the EV battery becomes depleted while driving at highway speeds and the car is switching to gas, the engine completely loses all power. This has lasted from 10-30 seconds. The dealership…"
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"There has been at least 4 times that the vehicle was not responsive to acceleration (stalled for a few seconds) then picked back up. Problem has been intermittent. There is no dash indication of an issue. Because…"
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"Hi, My Prius Prime recently just suffered the loss of heat in the middle of winter. Based on the diagnostic of my local Toyota dealer, it appears one of the metal heater coolant hose had rusted off. This is not just…"
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"My 2018 Toyota Prius Supreme was parked too far away from the curb in front of a house where we were invited, in a residential area in Naperville IL. I entered the car to park it properly. I had my foot on the brakes…"
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"Airbags deployed prematurely as I was parking my car in a doctor's office parking lot. The car was going less than 5 mph and I did not hit anything. The premature deployment of the airbag startled me and caused me to…"
NHTSA crash ratings
| Version | Overall | Front | Side | Rollover |
|---|---|---|---|---|
| 2018 Toyota Prius PRIME 5 HB FWD | Not rated | Not rated | Not rated | Not rated |
Stars are how this vehicle did in NHTSA crash tests. They are a safety result, separate from the complaint record. Not rated means that test was not run for this version.
Fuel economy
| Trim | Engine | Transmission | Drive | City | Hwy | Combined | Annual fuel cost |
|---|---|---|---|---|---|---|---|
| Prius Prime | 1.8L, 4-cyl | Automatic (variable gear ratios) | Front-wheel drive | 55 | 53 | 54 MPG / 640 mi range | $1200 |
Specs and fitment
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Frequently asked questions
Is the 2018 Toyota Prius Prime (PHEV) reliable?
Owners have filed 15 complaints with NHTSA about the 2018 Toyota Prius Prime (PHEV) over 9 years — 1 per year. That is fewer complaints per year than most Prius Prime (PHEV) years here — under the median of the other years, which is 3. NHTSA has no recalls on file for this model year.
What are common problems with a 2018 Toyota Prius Prime (PHEV)?
The complaints owners file most often name Air bags (2 of 15), then Fuel and propulsion system (2) and Powertrain (2). Those filings include 4 that report a crash and 2 that report an injury.
Is the 2018 Toyota Prius Prime (PHEV) more reliable than the years next to it?
The 2017 Prius Prime (PHEV) has 42 complaints, 6 per year, and the 2019 has 8 complaints, 2 per year. The 2018 has fewer complaints per year than the 2017. The 2018 has fewer complaints per year than the 2019.
Has the 2018 Toyota Prius Prime (PHEV) been recalled?
NHTSA has no recalls on file for the 2018 Toyota Prius Prime (PHEV).
How many complaints have owners filed about the 2018 Toyota Prius Prime (PHEV)?
Owners have filed 15 complaints about the 2018 Toyota Prius Prime (PHEV) with NHTSA.
What mpg does a 2018 Toyota Prius Prime (PHEV) get?
EPA-rated combined fuel economy for the 2018 Toyota Prius Prime (PHEV) is 54 MPG. See the fuel economy table on this page for city and highway figures by engine and transmission.
What oil does a Toyota Prius Prime take?
SAE 0W-16 on XW50 (2017-2022) and XW60 (2023-on); SAE 0W-20 may be used temporarily if 0W-16 is unavailable, then replace with 0W-16 at the next oil change.
What does recall 26V-049 cover on Prius Prime?
Certain 2023-2026 Prius Prime and Prius Plug-in Hybrid vehicles (with other Prius variants): water may enter the rear door switch and cause a short circuit, allowing an unlocked rear door to open unexpectedly.
When did the XW60 Prius Prime start?
Model year 2023 on this site.