While this is just a single recall, there are actually two things that can cause this brake problem on the i-MiEV, according to Mitsubishi's filing with the National Highway Traffic Safety Administration. First, bad programming in the EV-ECU could cause the system to "falsely judge that the relay contact point is stuck," according to the full NHTSA defect notice PDF. Second, the vacuum pump exhaust hole could be corroded and blocked due to being splashed with road salt. However, the company says that if either fault happens, the brake warning lamp would illuminate, and there would be an audible alarm.
Depending on which issue is affecting an owner's i-MiEV, Mitsubishi is going to reprogram the software, replace the pump or both. Scroll down to read the recall report from NHTSA.
Report Receipt Date: SEP 02, 2014
NHTSA Campaign Number: 14V522000
Potential Number of Units Affected: 1,810
All Products Associated with this Recall
Vehicle Make Model Model Year(s)
MITSUBISHI I-MIEV 2010-2014
Manufacturer: Mitsubishi Motors North America, Inc.
Mitsubishi Motors North America, Inc. (Mitsubishi) is recalling certain model year 2010-2014 i-MiEV electric vehicles manufactured September 15, 2009, to March 25, 2014. Due to either software programming or corrosion caused by road salt, the brake vacuum pump may stop functioning.
If the brake vacuum pump stops functioning, the distance needed to stop the vehicle may be lengthened, increasing the risk of a crash.
Mitsubishi will notify owners, and depending on the affected vehicle, dealers will either reprogram the brake vacuum pump controller, replace the brake vacuum pump or do both, free of charge. The manufacturer has not yet provided a notification schedule. Owners may contact Mitsubishi customer service at 1-888-648-7820. Mitsubishi's number for this recall is SR-14-007.
Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.