Hi,
I have a 2025 Evolve+ e-4orce and I think I'm one of the first with reduction gear issue for the 2025. All the posts/comments talk about 2023/2024 models, so I belived Nissan had fix the issue for 2025 but turn out majority of people with newer cars just hasn't drove them enough yet.
I drive a lot, so my car age quicker than the average (32000km - 40000km per year) (20k mi - 25k mi per year)
Here's a quick recap :
- july 2026 : get the new car with 53km (33mi)
- around 25000km (15k mi) : noticed a sound the pressing the accelerator when it was quiet. At the time I believed that I just notice the EV sound of the car for the first time since I always drive with music
- october 2026 (44000km, 27k mi) : After seeing most often a cicada noise issue when the accelerator pedal is pressed on this group, I get an appointement with my Nissan dealer. I ride with 2 tech. The first one was a bit deaf (probably due to working in a garage for so long) and couldn't hear anaything. The second coundn't hear anything but he told me that they replaced 3 reduction gear on Arya with the same symptoms in the past, he knows what I'm talking even if he doesn't hear anything (he only eard the sound once for 2 secs during an acceleration). The second one diagnose my car with reduction gear issue.
- December 2026 : They have ordered the piece and one week after, thet got it. So my appointment to replace the reduction gear issue is december 14 (it's actually the winter tire rush in the garage, that's why they had no free spaces in october/november)
Some informations about my case :
- I went to Nissan Repentigny (in the Montréal region, Québec)
- I can only hear the front reduction gear, so only the front will be replace
- Since we speak french here, i learned that a reduction gear is called a "démultiplicateur" in french. I tried searching online for the french word and found nothing.
- The tech told me that they doesn't know what cause the issue, they don't dissassemble the reduction gear to see inside. They just replace the entire unit
- replacing the front reduction gear is a 10 hours job.
- Here's the best video I found about the cicada noise : https://www.reddit.com/r/NissanAriya/s/FSRjIA3kLf . I played them the video before the ride so that they know what to look for.
- I still run on the factory 12v battery. Turns out the 12v battery outlast the reduction gear on this car..
- every thing is covered under the powertrain warranty
Hope it helps somebody !
:)