NHTSA Complaint #11706392 — 2020 NISSAN LEAF

ENGINE issue reported to NHTSA

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Complaint Details

ODI Number	11706392
Vehicle	2020 NISSAN LEAF
Component	ENGINE
Date of Incident	November 5, 2025
Date Filed	December 21, 2025
Mileage	N/A miles
Crash	No
Fire	No
Injuries	0
Deaths	0
Vehicle Towed	No
State	TX

Consumer Description

On November 5, 2025 our 2020 Nissan LEAF (42,701 miles) experienced rapid loss of battery capacity under normal driving/temperatures (80F.) Vehicle defaulted to "turtle mode" temporarily, an unsafe condition. Were able to replicate condition on subsequent days. Took vehicle to Cedar Park Nissan for evaluation. Technicians concluded that the traction battery had one or more defective cells and recommended battery pack replacement. Vehicle is inoperable. Started complaint with Nissan customer assistance. Dealer and Nissan refused use of a loaner vehicle, despite offering no timeline on repairing/replacing the battery pack. The defect in our vehicle's battery cells may lie in the battery chemistry and be related to issues associated with damage from DC fast charging (recall 24V-700.) Our vehicle has seen little or no fast charging, being charged mostly on Level 1 or Level 2.

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