Toyota has recalled its 2006-2007 hybrid sports utility vehicle (SUV) models the Toyota Highlander Hybrid and the Lexus RX 400h for faulty electronics.
The recalled SUVs’ Intelligent Power Module (IPM) contains a control board with transistors. Some transistors may have been improperly soldered onto the control board in the IPM and may become damaged from heat associated with “high-load driving”.
In most instances, Toyota claims transistor failure should result in the appearance of dashboard warning lights and the vehicle should then enter a fail-safe driving mode. The fail-safe driving mode decreases engine power, but still allows the vehicle to be driven for a short distance. However, in a few cases the damaged transistor may cause a power supply fuse to blow, causing the hybrid drive system to shut down and the SUV to then coast to a stop.
The recall pertains to over 45,000 Toyota Highlander Hybrid and over 36,000 Lexus RX 400h SUVs. Toyota is currently working with its suppliers to obtain replacement parts necessary in repairing the recalled vehicles. Owners of the recalled vehicles can expect to receive a mailed notification in mid-July. Toyota will mail a second notification to vehicle owners after a sufficient number of replacement parts have been manufactured. The second notification will advise customers to call the nearest Toyota dealer to have the IPM inspected and if necessary replaced free of charge.
Toyota Highlander Hybrid owners may contact the Toyota Customer Experience Center at 1-800-331-4331 or via the web at toyota.com/recall for more information concerning the recall.
Lexus RX 400h owners may contact Lexus Customer Satisfaction at 1-800-255-3987 or via the web at lexus.com/recall for more information concerning the recall.
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