Table 1 shows one common engine and engine cooling related problems of the 2017 Nissan Leaf.
| Problem Category | Number of Problems |
|---|---|
| Engine And Engine Cooling problems |
The manufacturer-installed 40kwh replacement battery has suffered an internal high-voltage isolation short to the vehicle chassis (codes p0aa6/p31e7), creating an immediate fire and shock hazard. The component failed just 2 years after installation in 2024. Nissan is refusing to repair this severe safety defect because the vehicle's original body frame is past its warranty window.