MITSUBISHI issued a recall on the I-MIEV model

On certain vehicles, vacuum pump function could be affected by software defects and/or blockage of the pump exhaust hole. An inoperable vacuum pump would affect power brake system function, increasing brake pedal effort and potentially increasing stopping distances, which could increase the risk of a crash causing injury and/or damage to property. Correction: Dealers will update vehicle software and replace the vacuum pump as necessary. Note: In the event that the vacuum pump becomes inoperable, the brake warning lamp will illuminate and an audible warning will be heard.