Continuously Variable Transmissions don’t have the best reputation in the industry. They’re known for their dreadful noise and mediocre performance.
In recent times, though, that’s shifting. CVTs are becoming more prevalent as manufacturers invest more capital into them.
However, they offer substantial benefits, mostly around fuel economy and emissions. Bear in mind, too, that Formula 1 banned teams from developing CVTs in the 90s – they were considered to be too much of an unfair advantage! So they can’t be completely useless!
Older CVTs weren’t particularly good. But that’s to be expected. These things take time to be developed. The first of anything is rarely superb.
Honda CVTs are known for their reliability, contrary to what the internet will tell you. That said, here are a few things to watch out for.
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What Is A CVT (Continuously Variable Transmission)?
A Continuously Variable Transmission is (no surprises here!) a type of transmission. Rather than being limited to a fixed sequence of gear ratios, a CVT can achieve any ratio within a specific range.
Manual gearboxes work by connecting input and output shafts of diverse ratios. The consequence is differing output speeds from the engine to the wheels.
Automatic transmissions are comparable. Different gear ratios can be formed with a series of planetary and ring gears and clutches.
A CVT is, in many respects, simpler than both. However, the technology has yet to see worldwide investment, so there are still a few niggles.
Variations of the CVT can be found in numerous road-going cars. They’re most prevalent with Honda, Nissan, and Toyota.
How Does A CVT Work?
The most prevalent type of CVT for the passenger car industry is the Pulley-And-V-Belt model.
Continuously Variable Transmissions function with two cone-shaped pulleys and a metal V-belt connection. One of these pulleys acts as the input, whereas the other serves as the output. Through the simultaneous modification of each pulley’s width using sheaves, the ratio can be altered.
Remember, these pulleys are conical. Think of each side like an inverted bowl. As the bases of these two bowls get nearer, the gap between them decreases. A broad belt sitting on the outside of the “bowls” will sit higher or lower as they get further away or closer together.
The belt will always sit firmly (in theory!) as the pulley width varies.
This means the gear ratio between the input and output can always be modified. In other words, it’s “always variable” or “continuously variable.”
In theory, CVTs mean the engine can rapidly adjust to road conditions. It doesn’t have to cycle through the gears, making it substantially more effective.
In real life, though, CVTs aren’t perfect. The belts stretch and fail over time. The transmissions can slip and overheat. And the noise of old models! Even when they’re working, the incessant droning is worse than listening to a political debate on repeat.
Practically, the main issue with CVTs is their limited torque transmission. It relies on the pulleys and the belt, which can easily get damaged. This explains why CVTs are rarely found in 4x4s or trucks. Using them for towing or hauling is strongly discouraged. Additionally, this is why most CVTs are combined with batteries in hybrid vehicles.
What Honda Models Are Known For Poor CVT Reliability?
Many sources suggest that the troublesome period for Honda CVT reliability was the late 90s and early noughties. The Honda Odyssey, Accord, and Civic often come up.
Perhaps. These facts are challenging to verify since they’re based on submitted owner reviews.
It seems more likely that, during this period (when CVTs were becoming more widely used), there would be more complaints. The whole system was still in its early stages, and development is ongoing even today.
Therefore, it’s hardly surprising to see some of Honda’s most popular models on the list of those “known for CVT unreliability.”
In fact, many of the online articles criticizing Honda’s CVT reliability clearly haven’t done their research. Honda has a much better record than other manufacturers – Nissan, for example. In fact, it could be argued that they produce the finest CVTs on the market.
So, if you’re buying a high-mileage Honda with a CVT built between 1996 and 2004, yes. Check for work on the transmission. You’d certainly encounter some problems at some point soon.
Otherwise, Honda has a pretty good track record with CVTs. If fuel efficiency and reliability are what you’re after, it’s an excellent way to go!
List Of Honda CVT Recalls
There have been two significant Honda recalls concerning CVTs.
- Honda Civic (built between 16 January 2014 and 6 November 2014) and Honda Fit (built between 12 March 2014 and 12 May 2015) – NHTSA ID: 15V574000. If the drive shaft for the input pulley breaks, the front wheels might lock up. This damage could be caused by a software glitch. The recall, affecting around up to 143,676 vehicles, meant Honda performed a software update. Honda’s recall IDs were JU2 (for the Civic) and JU3 (for the Fit).
- Model Year 2016 Honda Civic (1.5-liter turbo and 2.0-liter) – NHTSA ID: 16V725000. The electronic parking brake sometimes didn’t engage when pressed immediately after the ignition was turned off. Again, the remedy is a free software update. Although the recall only officially affects 2016 Civics, owners of 2017 and 2018 models have reported the same problem. A lawsuit, launched in November 2019, quietly trickled out by the end of the year. Honda’s recall ID is KC6, and up to 350,083 cars were affected.
If you have either of these models and aren’t sure if the car was recalled at the time, get in touch with Honda. Alternatively, go to NHTSA.
How Long Do Honda CVTs Last?
You should expect a Honda CVT to last just as long as any other transmission. With older CVTs? Perhaps a bit less.
There’s no reason to believe that a Honda CVT wouldn’t endure as long as any other manufacturer’s, too.
A new Honda CVT must readily endure a minimum of 200,000 miles. This is assuming it receives proper maintenance for its entire life.
In summary, it’s wise to be cautious when purchasing an older, high-mileage vehicle. The CVT might be approaching its limit. However, you should maintain the same level of alertness with a regular automatic transmission. The reality that it’s a CVT doesn’t make much difference.
If you buy a new Honda, the CVT will be covered by a warranty for at least three years. Some warranties will protect you from CVT repair costs for five years.
How To Look After Your Honda CVT
You don’t need to do anything special to look after your Honda CVT. In fact, aside from keeping the CVT fluid topped up, there’s very little else you need to do.
Stick to the service plan, too. That way, approved mechanics can check your CVT yearly to ensure it isn’t developing any faults.
Again, this is the same as any other transmission. It’s present, but you rarely think about it.
Symptoms Of Honda CVT Problems
Here are a few things to notice. They might indicate that your Honda CVT is failing.
1. Transmission Fluid Leaks
CTVs use transmission fluid, the same as all other types. It lubricates the moving parts and keeps friction (heat) at bay, protecting the component.
When you notice CTV fluid dripping, more grave problems will quickly develop. This might involve new seals or gaskets. Get it repaired as soon as feasible.
2. Louder Whining Than Usual
A CVT is renowned for producing a not-so-pleasant whining and droning sound. However, if that noise becomes excessive, you should get it checked.
It could signify the belt coming slack or the pulley drive shafts failing.
3. Shuddering Or Jerking Under Acceleration
When a CVT overheats, bearings and mounts can start to fail. This makes the CVT rattle around, leading to trembling or jerking.
It’s more apparent under acceleration because the system is subjected to maximum torque.
4. Poor Acceleration
As has been established, CVTs aren’t used on sports cars. As a result, you’ll never be prevailing in drag races with them. Well, not presently, at least.
If your Honda struggles under acceleration, it could be a sign of a defective CVT. The belt could be slipping, or the pulleys could be losing hydraulic pressure, meaning the ratios can’t be changed effectively.
5. Smell Of Burning
A burning smell could come from pretty much anywhere in a vehicle. Nevertheless, it isn’t something you’re supposed to be aware of.
It probably has nothing to do with the transmission, but you should cease and check it out. The CVT could be overheating if the belt is failing or there’s a transmission fluid leak.
What To Do If Your Honda CVT Is Failing
If your CVT is breaking, you’ll have to take your Honda to a mechanic or dealership swiftly. The longer you leave it, the more costly it’ll be and the more damage it’ll do.
Check whether the damage is covered by a warranty or a historic recall. It’ll need fixing either way, but you might get some (or all) money off.
You might need to look at a CVT rebuild. Thankfully, Honda CVT replacements tend to be more economical than their competitors. However, it’s still quite expensive. Think $3,000 to $6,000.
If you’re driving an especially old model, it’s worth evaluating how much the car itself is worth. In some cases, it might be more financially sensible to scrap/sell it. If the repair costs more than the car’s worth, don’t bother. Get a new one.
Should I Buy A Honda With A CVT Or An Automatic Transmission?
Different strokes for diverse folks. Swings and roundabouts.
The optimal transmission for you might differ from the ideal one for someone else.
In general, look at CVTs if your main concern is fuel efficiency and environmental pollutants. They’re better in this regard.
Standard automatics, though, are more geared (ha!) toward power and torque. They’re, therefore, better for swifter driving, towing, off-roading, etc.
In reality, there’s not much difference between the two for most daily drivers. The CVT might be smoother than the average automatic transmission, but it’s unquestionably louder. And the noise can be quite irritating. High-end models like those in the Lexus range are often quieter than most.
While a CVT undoubtedly isn’t for everyone, don’t rule it out! And as the technology progresses, we’ll likely see CVTs surpass all other transmission types in the future!