Nissan Versa, Kicks and Mirage CVT (JF015E): Why They Fail and What a Replacement Needs

If your 2014–2019 Versa Note, a Kicks or a Mitsubishi Mirage has started to whine, shudder or flare, the transmission behind it is almost certainly a Jatco JF015E. Nissan calls it the RE0F11A, Mitsubishi the F1CJB, and Jatco itself the CVT7. Same unit, three names, which is half the confusion when you shop for one.

• Nissan Versa sedan (2012–2019) and Versa Note (2014–2019)
• Nissan Kicks (2018 on)
• Mitsubishi Mirage (2014 on)
• Chevrolet Spark with the CVT (2014 on)

Most CVTs are a belt and two pulleys and nothing else. The CVT7 adds a small two-speed gearbox behind the belt, a Ravigneaux gearset with a low clutch, a high clutch and a reverse brake. That's how a tiny transmission gets a wide ratio spread: about 4.00:1 at the bottom and 0.55:1 at the top. It's also why a CVT7 can fail in two different places, the belt and pulleys or the auxiliary gearbox, and the symptoms aren't the same.

**Low or aerated fluid.** Rebuilders consistently name low fluid as the leading cause of belt and pulley damage in CVTs. There's no dipstick on most of these; the level is checked at a plug with the engine running and the fluid at the temperature the service procedure specifies, and it's correct when fluid just drips out. A shop that "tops it off" cold is guessing.

**Heat.** Stop-and-go delivery work, towing anything, or long climbs in hot weather cook the fluid. Old fluid loses the friction properties the belt needs to grip, and slipping belts wear the pulley faces.

**The wrong fluid.** Nissan has changed its CVT fluid specification over the years, and sources disagree on which formulas substitute for which. Use exactly what your owner's manual names, and make sure the shop writes it on the invoice. Expedia Protection asks for the fluid type and quantity on every installation invoice anyway.

• **The right unit for the engine and year.** Versa, Kicks and Mirage units don't all interchange. We match by VIN.
• **Cooler service.** The cooler is machine-flushed and flow-tested, or replaced, at installation, and the invoice shows it. On a CVT that failed from heat, don't skip it.
• **A reset of the fluid-life counter.** The transmission computer tracks how worn the fluid is and counts down to a change. After a fluid change or a replacement unit, the shop resets that counter with a scan tool. Skip it and the car may warn about fluid that's brand new.
• **Programming where required.** If the vehicle needs its control module programmed or its learned values reset, that happens at installation and goes on the invoice.

A used CVT7 from a salvage car arrives with fluid history you can't know, and fluid history is most of what kills these. A remanufactured unit has its belt, pulleys and auxiliary gearbox inspected or replaced before it ships. [Our reman-vs-used comparison](/blog/reman-vs-used-engines-transmissions-how-to-choose) goes through the tradeoff, and [the break-in guide](/blog/transmission-break-in-first-500-miles) covers the first 500 miles.

• Warranty policy and Expedia Protection: /warranty
• When your transmission needs a reflash: /blog/when-transmission-needs-reflash
• Transmission slip and shudder after replacement: /blog/transmission-slip-and-shudder-after-replacement
• Lifter tick after engine replacement: /blog/lifter-tick-after-engine-replacement
• Shipping and freight delivery: /help-center/he-05130-what-are-the-different-shipping-options-costs-and-transit-times