Each Toyota Prius Generation, Ranked By Reliability – Jalopnik

The Toyota Prius is greater than a world family title; it is an icon that set the template for mass-market hybrid automobiles. The unique Prius launched in 1997 because the world’s first mass-market hybrid mannequin, proving {that a} automotive can certainly shut down its gasoline engine and function purely in EV mode at low speeds to avoid wasting gasoline. This is achieved by means of a intelligent interaction of its gasoline engine, electrical motor, and small self-charging battery, which sees the Prius present an EPA-estimated gasoline financial system of as much as 57 mpg mixed, incomes it a spot among the many most fuel-efficient vehicles ever offered in America.

With drivers recurrently prioritizing gasoline financial system as a method to fight the price of dwelling disaster, the Toyota Prius typically lands on the prime of the precedence record for many consumers. But equally, reliability continues to be probably the most vital issues for would-be homeowners, because it helps take away breakdown worries and ensures low working prices. Fortunately, Priuses have typically confirmed to be very dependable, and well-maintained examples which have racked up over 500,000 miles on the odometer are usually not unusual. But you will discover that some generations are extra so than others.

As a outcome, we have ranked the perfect Toyota Prius generations for reliability based mostly on client opinions and their efficiency in reliability surveys. For every technology, we averaged the reliability scores of the vehicles based mostly on their rankings in Consumer Reports’ surveys. This has enabled us to suit the present fifth-gen Prius, taking into consideration the 2023 by means of 2026 fashions, that are CR-rated. However, as reliability surveys weren’t carried out on the first-generation Prius, now we have based mostly its evaluation on reviews from homeowners.

Toyota actually raised the bar with the introduction of the third-generation Prius in 2009. Out went the 76-hp 1.5-liter 1NZ-FXE inline-four and 67-hp everlasting magnetic synchronous electrical motor within the second-gen automotive, changed by a bigger 1.8-liter four-cylinder 2ZR-FXE engine together with an 80-hp electrical motor, which collectively upped the mixed output to 134 hp from 110 within the second technology Prius. 

The third-gen automotive additional pushed the bounds by debuting the primary plug-in Prius, user-selectable drive modes (EV, Eco, and Power), in addition to the model’s first electrical water pump and exhaust-gas recirculation (EGR) system. These additions have been essential to decreasing nitrogen oxide emissions and inside friction whereas elevating the Prius’ common gasoline financial system from 46 to 50 mpg. 

However, a few of these options did additionally introduce further factors of failure. For instance, the exhaust gasoline recirculation (EGR) system, which returns a few of the exhaust gases again into the combustion chamber to assist cut back nitrogen emissions, can develop into clogged with carbon deposits above 100,000 miles. Over time, the unusually excessive ranges of carbon deposits can result in misfires, the dreaded “Prius Death Rattle,” and doubtlessly the widely-publicized head gasket leaks seen in lots of third-gen Prius fashions. As nicely, there have been reviews of oil consumption in 2010-2014 Prius fashions geared up with low-tension piston rings, whereas others level out their third-gen Priuses have been blighted by brake sensor points, which may manifest in delayed response or make the brakes really feel considerably inconsistent.

As pioneering because the first-generation Prius was, the final sentiment is that it does not lead the pack in terms of Prius reliability, particularly given its niggling teething issues. According to the National Highway Traffic Safety Administration (NHTSA), points with the electrical energy steering are sometimes cited as a significant grievance concerning the automotive.

Back in 2011, Toyota was compelled to recall round 52,000 Gen 1 Priuses resulting from dangers related to the nuts that safe the pinion shaft within the steering gear coming free. When that occurs, the pinion shaft turns into unstable, and this in flip reduces energy steering help, inflicting the steering to really feel overly stiff throughout left turns.

That apart, there have been quite a few cases of the steering torque sensor carrying out prematurely and manifesting because the steering violently shaking. Another widespread fault with the primary technology Prius has to do with the brakes. Some homeowners clarify that in the event that they hit a bump whereas braking, the brakes momentarily fail to sluggish the automotive down, leading to a noticeable improve in stopping distance.

Post the third-generation automotive, Prius reliability has continued to get higher and higher, and the wedge-shaped fifth-generation Prius is a significant beneficiary of the excessive requirements set by Toyota. The 4 fashions launched up so far collectively maintain an above-average reliability score from Consumer Reports.

That contains a superb reliability rating for the 2023 Toyota Prius, in addition to above-average marks for the 2024 by means of 2026 Prius fashions. It’s notably spectacular when you think about that this implies the Gen 5 Prius boasts the second-highest common reliability score ever from Consumer Reports. Clearly, its long-term reliability is but to be decided as a result of shorter manufacturing run, however based mostly responses from homeowners about their reliability, the Gen 5 Prius doesn’t seem to endure any main fault up to now.

NHTSA knowledge suggests homeowners have only a few complaints up to now. One minor draw back is that the fifth-gen Prius has been topic to 3 remembers, affecting the 2023 and 2024 fashions. The 2025 mannequin, for its half, has had one recall resulting from a fault wherein the rearview digital camera show might freeze or present a clean picture when the car is reversing (the 2023 and 2024 fashions have been additionally recalled for comparable causes). 

The second-generation Toyota Prius proved extra fascinating than the first-generation automotive, and for good cause. It was bigger, quicker, extra highly effective, and 15% extra environment friendly than the automotive it changed, regardless of utilizing the identical 1.5-liter NZ-series Atkinson-cycle engine because the Gen 1 Prius. It impresses when it comes to reliability, too. The engine has proven it might probably stand up to excessive abuse with out fuss (take a look at what a Toyota Prius engine appears to be like like after 303,000 miles), and proprietor accounts point out that the automotive itself is notably extra dependable than the first-generation mannequin. Beyond that, there’s an argument to be made that the second-gen Prius is essentially the most dependable Prius technology but.

That’s no shock, seeing as this technology was constructed with a give attention to reliability. Toyota had had years to take care of the teething points with the first-gen Prius  and refine its hybrid expertise by the point the second-gen automotive got here out. But it is definitely not good, as there have been complaints from drivers concerning the headlight not working correctly. The headlights may activate and off on their very own, cease engaged on each side, or expertise one aspect failure. In addition, there have been reviews concerning the engine burning oil, and, as they age, there are some widespread issues to look out for, together with battery degradation and failing inverter water pump. Despite these points, the final notion of the second-gen Prius fashions is that they’re very dependable.

At primary is the fourth-generation Prius, which has proved well-liked amongst Prius followers for being impressively dependable. Two out of the seven fashions on this technology scored glorious reliability factors in Consumer Reports’ survey, with the remaining 5 all incomes nicely above-average rankings, making this the Prius technology with the very best common reliability rating ever recorded by Consumer Reports.

But the fourth-gen Prius did not safe the highest spot solely based mostly on its stable displaying in CR’s surveys. Outside of routine upkeep, many homeowners report that the Gen 4 Prius has persevered in reliability over the lengthy haul, with only a few surprising restore store visits. This technology resolved the commonest issues that bothered the third-generation Prius fashions, together with head gasket failures and EGR valve faults brought on by carbon deposits clogging the valve. However, it’s not resistant to points, and when one thing does go unsuitable with fourth-gen Prius, it normally entails the windshield, which has tends to crack simply. A couple of homeowners have additionally reported cracked warmth exchanger points with this Prius technology.