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My VSC lights came on and my mechanic determined the yaw sensor was not functioning. And trying to replace it, he has not been able to recalibrate. So I have been driving without a yaw sensor for months now. My question is this: Is it necessary to replace the yaw sensor or can the car be driven safely without it?

Answers from the Automotive Experts

Jessica Howe, Automotive Expert & Coach at AskPatty.com

Hello, 

Thank you for writing in. An investigation was launched into Toyota's Yaw Rate sensors for your make and model. A government agency decided that no recall was needed, but more than 130,000 Sequoias in the 01-02 range were affected. Maybe even more. 

You can function without the yaw rate sensor, but you don't have to. It is beneficial to many of the vehicle stability systems in the vehicle that protect you. Toyota dealers and qualified Toyota technicians should be familiar with the issue and be able to properly install the sensor or calibrate the one you have. Your current technician may just not be qualified for this particular issue. 

From a professional standpoint, you do not absolutely have the yaw sensor, but you should get it repaired if and when you get the chance. It will solve the warning light and ensure your vehicle is ready for winter storms. 


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