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Toyota Sienna Traction Control
I have owned a 2007 Sienna since new. Since the car was new, it seems like the traction control does nothing. I asked the dealer on many occasions if it is "normal" to be able to burn rubber from a stop on dry pavement. They said it was normal, it only kicks in when the van is moving at a "certain" speed. This van is extremely powerful, I understand that, but shouldn't the traction control operate from a full stop? Please respond if any of you have had this issue. Winter driving is hazardous in this vehicle!
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There is an off button by your left knee - is that button on or off?
Something is amiss.
At times I'm trying to get up my snowy/slippery driveway and it gets in the way and keeps me from moving at all.
If your in conditions, as in stuck, which will cause the front wheels to spin, quickly turn the unit OFF. The wheel spinning will get some brake applied, when the other starts spinning again brake is applied. The application between the two wheels will lock up the wheels, the brakes don't release themselves quick enough to counter this condition.
My vehicle was relatively new I got stuck is some snow, because I didn't turn the unit off, I made my condition much worst. Especially if you need to rock the vehicle back and forth it will lock up wheels to where the engine wont even be able to turn them. Finally got out the manual and figured out what was going on.
Tc is used to assure that the loss of traction on the front wheels will not be of extended duration, so much so that loss of directional control will result. If you inadvertently use/apply too much engine torque for roadbed conditions then TC will INSTANTLY react by dethrottling the engine and applying braking, HAMMERING the brakes on the pair of wheels wherein one is slipping.
VSC, on the other hand, might be delayed until you get up to some minimum speed wherein YAWING can be more of a threat and/or more easily detected.
Mine is a 2004, doubtful there is little difference in programing between all the years.