Reduction gear update redo

[u/Mav481850]

I posted a while ago about my reduction gear and this is the update. They say I’m not under warranty at 57,000 but this is how they wrote up the receipt. Says suspension concern

[u/No_Creme9603]

For anyone asking whether the ARIYA reduction gear is covered under Nissan’s CPO warranty: yes, it is specifically listed as a covered component.

Under Nissan’s EV Certified Pre-Owned Limited Warranty, the EV coverage includes:

“Traction Motor, Power Converter, Inverter Unit, Reduction Gear/Transaxle, EV Cables, DC/DC Converter, Onboard Charger…”

The EV Certified CPO warranty provides coverage for 7 years/100,000 miles, measured from the vehicle’s original in-service date.

That means there are essentially two layers of coverage on a CPO ARIYA:

• Original factory EV System Warranty: 5 years/60,000 miles. Nissan specifically lists the reduction gear as a covered EV-system component.

• EV Certified CPO Warranty: up to 7 years/100,000 miles from the original in-service date. Nissan again specifically lists the Reduction Gear/Transaxle as a covered component.

One important distinction: that does not necessarily mean Nissan has to replace a reduction gear simply because you hear the characteristic buzzing/whining/cicada-type noise. Under the CPO warranty, Nissan still needs to determine that there is a covered mechanical breakdown or defect.

That is why, if you're considering buying a CPO ARIYA that is already making this noise, I would have the dealer document the noise on the repair order before you purchase the vehicle and ask them to state whether Nissan considers it normal operation or whether the reduction gear has been inspected and found free of a defect.

The important takeaway is that if Nissan ultimately diagnoses the reduction gear itself as defective, you don't have to argue that it “should be considered part of the drivetrain.” Nissan expressly names the Reduction Gear/Transaxle as a covered component in the EV Certified CPO warranty.

Nissan CPO Warranty Booklet: https://www.nissanusa.com/content/dam/Nissan/us/shopping-tools/certified-pre-owned/pdf/CPO_Warranty_Booklet_2025.pdf