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Toyota Prius Recall 18V684: Prius Hybrid System Can Shut Off While Driving, Raising Crash Risk

NHTSA campaign 18V684, reported October 4, 2018, 807,329 vehicles potentially affected.

What this recall means for you

Excessive voltage in the Intelligent Power Module (IPM) inside the inverter can cause the hybrid propulsion system to shut down unexpectedly, which may stall the vehicle while it is being driven. If the hybrid system shuts down unexpectedly, the risk of a crash increases.

Toyota will notify owners, and authorized dealers will update the software for the motor/generator control electronic control unit (ECU) and the hybrid control ECU as necessary. The repair is free of charge. This software update is needed even if your vehicle already received software updates under earlier recalls 14V-053 or 15V-449. Owners can contact Toyota customer service at 1-888-270-9371, referencing recall number J0V. You can also check your VIN for open recalls.

Check whether this recall is open on your vehicle

The repair is normally free at an authorized dealer.

Official recall notice

Safety recall 18V684Toyota Motor Engineering & Manufacturing
Component
HYBRID PROPULSION SYSTEM
Problem
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.
Risk
If the hybrid system shuts down unexpectedly, it can increase the risk of a crash.
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. The recall began January 22, 2019. 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.

Affected vehicles

Toyota Prius20102011201220132014
Toyota Prius V201220132014