| Issue ID | 1294122 |
| Internal NHTSA # | 10877146 |
| Manufacurer | Nissan North America, Inc. |
| Brand | NISSAN |
| Model | LEAF |
| Model Year | 2012 |
| File date | 15/02/16 |
| Component | SERVICE BRAKES |
| Product type code | VEHICLE |
| Description of the problem | I have observed the transient grabby brake syndrome in my leaf during cold weather months in the past couple years. I complained to my nissan dealerships service department a couple times about it, but the problem could not be replicated at the time. I also noticed on the energy screen that the regenerative braking was cycling between 10 and 20 % coincident with these brake intensity pulsations. It only happens when i am lightly braking with very steady light pressure on the brake pedal. I suspect a possible cause to be the sensor that determines brake pedal position for the regen braking may be defective or non-linear at some portion of the travel, or the regen braking program may have a problem, or the hydraulic braking system has a faulty component and the regen system is just responding to the cycling between hard and light braking. In any event this problem may be feeding other braking problems that i have read about here, so should be investigated by nissan to find a fix so as to prevent injuries or fatalities. |
| Vehicle Mileage at Failure | 25000 |
| Number of Occurences | |
| Source of the issue | NHTSA WEB SITE |
| City and State | CLARKSBURG, NJ |
| VIN pattern | XXXXXX |
| 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 | |
| Drive train type | |
| Transmission type | |
| Vehicle speed | 40 |
| 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 | |
| Dealer's state code | |
| Dealer's ZIP code |