Speed Sensor Problems of Toyota Sequoia

Vsc trac on/off brake indicator lights appear while driving in the 35-45mph range. If you attempt to stop the vehicle (firm or light brake pressure), there is a loud grinding noise, as if it is activating the abs, which takes a little longer to come to a complete stop. It would've been nice if Toyota created a vsc trac on/off switch (at this rate, I may have to create my own). Some websites mention dirty sensors (speed sensors), some mention possible faulty yaw rate sensor (level warning switch, located in the center console), steering angle sensor may need adjusting. Who knows, but this would be a definite accident waiting to happen. . Read more...

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About a year ago, I started to experience problems that's related to the vehicle stability control (vsc) system on my 2002 Toyota Sequoia. The problem occurs intermittently and when it does occurs, it happens during initial acceleration. During this time, the vsc light would start blinking and I would not be able to accelerate. Braking would require tremendous force applied to activate it. There was at least one incident where the vsc activated during highway driving, but that incident lasted approximately 5 or so seconds. However, it did require that I suddenly apply the brake and started pumping it for the vsc to DE-activate. Due to the intermittent nature, I took the vehicle to a local repair shop for diagnostic and they did find that error codes were present relating to the vsc. Though the problem could not be pinpointed on the initial visit to the repair shop. Subsequent occurrences prompted me to bring the vehicle back to the repair shop for further diagnostic. Eventually it was recommended to me to replace the "speed sensors" which I authorized. After the replacement, the problem tend to have gone away. Recently, I started to intermittently experience a similar problem with vsc light blinking briefly whenever I pull out of a drive way performing at least an 80 degree turn. This time around the problem isn't as severe and is very infrequent. I would say in a week of commuting, I would experience it maybe once or twice. Of course this is compared to previous incidents where I was experiencing the vsc problem almost half the time. Earlier this week, I read there was a 2003 Toyota Sequoia recall which has the exact symptom and problem I've been experiencing on my 2002 Sequoia. I strongly urge the NHTSA to recommend Toyota to include the recall for 2002 Sequoia model year as well. Thank you for your attention and time!.

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Vsc trac,vsc off,all on at once. Obd ii codes point to speed sensor,brake pedal switch and abs computer malfunction. Dealer recommends changing brake booster and abs computer system. From the available information on the internet this is very common problem for first generation Toyota Sequoias. The abs and vsc malfunction can longer stopping distance,and swerving under emergency circumstance and should be a safety concern.

I own a 2003 Toyota Sequoia sr5 with 95000 miles. Vsc, trac, and abs lights came on. Dealership said that the codes are faulty ecu. Cost of repair was $1700. The following week lights came back on. This time they tell me it is a faulty speed sensor on the front right. They recalibrated the vehicle and said if it comes back the cost of the repair is $400. Following week, the lights come on, same code for the speed sensor, so I have it replaced. Two days later, the lights are back on. Not certain what will code this time. After reading several posts online, it looks like this is a recurring issue with this vehicle. So, I'm filing a complaint sense there hasn't been a recall.

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