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Hybrid System may Shutdown and cause Stall
If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.
NHTSA Campaign Number: 18V684
Manufacturer Toyota Motor Engineering & Manufacturing
Components HYBRID PROPULSION SYSTEM
Potential Number of Units Affected 807,329
Summary
Toyota Motor Engineering & Manufacturing (Toyota) is recalling certain 2010-2014 Toyota Prius and 2012-2014 Toyota Prius V vehicles. Excessive voltage in the Intelligent Power Module (IPM) within the inverter may cause the hybrid system to shut down, causing the vehicle to stall while being driven.
Remedy
Toyota will notify owners, and dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary, free of charge. Interim notices informing owners of the safety risk are expected to begin October 22, 2018. Owners will receive a second notice when the remedy becomes available. Owners may contact Toyota customer service at 1-888-270-9371. Toyota’s number for this recall is J0V. Note: The software updates in this recall are needed even if the vehicle had the software previously updated under recalls 14V-053 or 15V-449.
Notes
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.