Following more than 200 reported cases of faulty window switches on certain Toyota models in the USA, Toyota South Africa Motors (TSAM) has announced that it will participate in a global voluntary service campaign to improve the operation of these vehicles’ power window master switch (PWMS).
According to a press release issued by the local company, the campaign involves the application of special lubricant to the operation of the master switch. This will counter possible sticky operation or a malfunctioning of the switch.
Autoblog reports that the incidents in the USA appear to be limited to models such as the RAV4, Yaris and Corolla (all manufactured between 2007 and 2009), but TSAM is still compiling a list of the models affected locally. It has stated that, “the notchy or sticky operation may be caused by an uneven application of the grease during the switch assembly process at the supplier. If the grease is not applied evenly, frequent use of the switch and normal operation may cause the grease to become carbonized and may eventually result in the deterioration of its lubricating properties.”
The remedy will involve an inspection, switch disassembly, and application of special fluorine grease. The switch inspection and repair will be performed at no charge to the vehicle owner. Toyota will contact affected owners directly.
