| Issue ID | 1426675 |
| Internal NHTSA # | 11047839 |
| Manufacurer | Nissan North America, Inc. |
| Brand | NISSAN |
| Model | LEAF |
| Model Year | 2016 |
| File date | 20/11/17 |
| Component | FUEL/PROPULSION SYSTEM |
| Product type code | VEHICLE |
| Description of the problem | Battery degradation occurring much quicker than reasonably expected. Details follow. Car purchased in june 2016. After driving a total of 6,150 miles under conditions of moderate temperature, conservative driving (not exceeding 65 mph on the highway, using eco mode as recommended in the manufacturer's manual to enhance battery life) and rarely charging the battery to more than 80% nor making use of frequent quick-charging (also as recommended in manufacturer's manual), i noticed that 1 out of 12 "bars" of battery capacity were lost. Use of software to determine state of health (soh) of the battery indicated that after only 2,300 miles (and 4 months of ownership), soh was 89%. Most recently (nov. 2016), soh is less than 84%. Car is always kept in garage when not in use, never parked outside overnight. Contacted manufacturer in oct. 2016 and nov. 2017 about this problem. Service department declined to acknowledge any problems in oct. 2016 with soh was only 89%. Conclusion: since car has been driven and charged under optimal circumstances without any evidence of overheating while in owner's possession, it appears likely that there is either a defect in the battery per se or poor handling of the vehicle before time of sale. There is no way for a consumer get an accurate measure of battery capacity at the time of purchase. I can make a spreadsheet of battery soh over time as measured by 3rd party software available to nhtsa at your request. |
| Vehicle Mileage at Failure | 2364 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | ALBUQUERQUE, NM |
| VIN pattern | 1N4BZ0CP0GCXXXXXX |
| Was vehicle invloved in a crash? | N |
| Was vehicle involved in a fire? | N |
| Was incedent reported to police? | N |
| Was medical attention required? | N |
| Was part original equipment? | |
| No. of injured persons | |
| No. of fatalities | |
| Date of purchase | 07/08/26 |
| Was original owner? | N |
| Anti-lock brakes | N |
| Cruise control | N |
| Number of cylinders | |
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| DoT tire identifier | |
| Tire size | |
| Location of tire code | |
| Type of tire failure code | |
| Was defective tire repaired? | |
| Date of manufacture | |
| Type of child seat code | |
| Type of restraint | |
| Dealer's name | |
| Dealer's telephone number | |
| Dealer's city | |
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| Dealer's ZIP code |