2009 Toyota Highlander Hybrid

On certain vehicles, a control board for the Intelligent Power Module (IPM), part of the hybrid system inverter assembly, could fail while the vehicle is underway. This could cause various warning lamps, including the malfunction indicator lamp, slip indicator lamp, brake system warning lamp, and master warning lamp, to illuminate on the instrument panel. If this occurred, in most cases, the vehicle would enter fail-safe driving mode, resulting in reduced motive power in which the vehicle could still be driven for short distances. In some instances, the fuse of the power supply circuit could blow, causing the hybrid system to stop functioning. The resultant loss of vehicle propulsion, in conjunction with traffic and road conditions, and the driver's reactions, could increase the risk of a crash causing property damage and/or personal injury. Correction: Dealers will inspect and, if necessary, replace the Intelligent Power Module.