Hi, when i put the car in reverse yesterday morning it sped out of the garage with no throttle and was very difficult to brake. turns out the brake, abs, warning and traction control lights were all on. throttle behavior in drive was normal but was also really hard to brake. there was also a weird hum at power on. i posted this to the r/leaf forum on reddit and everyone said replace the 12v battery which fixed it. others described similar experiences.