There are 3 stored owner reports matching the powertrain & transmission leading-label group for the 2015 Nissan Leaf in our NHTSA-sourced dataset. These are unverified consumer reports and may not reflect confirmed defects.
This group counts stored reports whose component label starts with one of this site's matching prefixes, ignoring case. Each matching report counts once within the group. Components mentioned later in the label or only in the narrative are not searched. How component counts work
Loaded 3 of 3 matching reports.
Open the full vehicle complaint log (all categories)The car stopped responding to accelerator pedal and eventually stopped in the middle of the road just before a hill. Haven't noticed any error messages and instrument panels seemed normal. Switched off power and then turned on again, the car worked normally. I am going to bring the car to a service center but it seems hard to find an appointment.
CAR GOES INTO TURTLE MODE, LOSING ALL POWER. HAS HAPPENED A FEW TIMES, EACH TIME HAS BEEN COMING OFF A HIGHWAY OR HEADING UP A STEEP HILL AND THEN TRAVELING AT LOW SPEEDS. WHEN CAR IS TURNED OFF AND ON, CODES RESET. I HAVE A READER FOR THE OBD, IT IS SHOWING FAULT P2138 000A EV/ HEC ACC PEDAL POS SENS 1,2, ERR EVC-196. AS POWER IS COMPLETELY LOST, THIS COULD EASILY CAUSE AN ACCIDENT. ONCE RESET THE CAR ACTS LIKE NORMAL. EVERY INSTANCE HAS HAPPENED WITH A BATTERY STATE OF CHARGE OF OVER 30%. *TR
MY 2015 LEAF S IS 3 WEEKS OLD WITH LESS THAN 700 MILES. I WAS DESCENDING AN 8% GRADE HILL IN B MODE WITH A SHARP BEND AT THE BOTTOM. AS I WENT TO APPLY THE BRAKES, THE PEDAL WENT TO THE FLOOR AND B MODE CUT OUT. THE CAR WAS NOW ROLLING DOWN THE HILL AND ACCELERATING UNDER GRAVITY WITH NO BRAKES AND WITHOUT B MODE SLOWING THE CAR. I WAS EXPECTING TO HIT A BRICK WALL AT THE BOTTOM OF THE HILL WHEN SUDDENLY, AFTER NO MORE THAN TWO SECONDS, THE BRAKES AND B MODE CAME BACK ON AND I SAFELY STOPPED. ON REFLECTION AFTER THE INCIDENT, IT WAS AS IF THE WHOLE COMPUTER/ELECTRONICS MOMENTARILY SHUT DOWN AND THEN REBOOTED. I DIDN'T NOTICE IF THE DASH LIGHTS WENT OFF OR NOT. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
NHTSA source checks for this vehicle year
Checks are recorded separately for each dataset, not for the whole page. Dates use UTC. A missing check date does not mean no records exist.
Vehicle import recorded: Apr 28, 2026. This is the stored import date, not confirmation that every source was successfully refreshed.