vsc lite

How is your tire condition/pressure? (meaning are your tires due for replacement?)

also when is it comming on, when you are starting from a stop or just regular driving ?

 

When VSC engages there is also a chime. No chime, it's not VSC but Traction Control.

1. Check tires for tread depth and replace if needed.

2. Put some air in your tires. The vehicle placard pressure is the bare minimum that you shouldn't ever go below. Unless you check and adjust your pressures every driving day using 35 psi is not enough too low. Just don't inflate above the pressure shown on the sidewalls.

3. There should be 2 psi more in the front than in the rear.

3. Traction control engages whenever the Prius senses a wheel slipping. This is done to protect the small motor/generator from overspinning. Don't be so aggressive on the accelerator, just hold it steady.

 

Do you notice it happens when you are going over a bump or uneven surface?

So do you mean your rear tires are still pretty bad right now (treadwise)?

 

I suspect that your vsc is seeing different revolutions per minute on your front and rear tires and seeing this as slip. The reason for the difference is actually that your rear tires are worn enough that they have a different circumference, or your replacement front tires are of a different size or otherwise different rpm. By the way, you should try to avoid having tires with much better traction on the front... your stability on hard braking will not be optimal and you're likely to spin out a lot more.

 

All VSC equipped Prius have the full VSC system. I don't think any of them come with stripped down VSC lite.

Tom

 

Perhaps you need to re-read the thread. This has nothing to do with VSC vs. a stripped down software package called "VSC lite" as you say.

 

Tom, Based on the thread title I thought OP had some way to turn down sensativity of VSC.

 

Hopefully so. They always say to always have a matching set of tires on a vehicle. It looks to be even more so true on vehicles such as the Prius with sophisticated traction control. It may actually be sensing the different tire diameters as somehow being tire slippage. It's a little too coincidental that the problem started immediately after you had 2 new tires installed, and immediately went away after you replaced the other two. Please report back if the problem reappears though.

 

Just to clarify, when VSC engages, there may not be a chime. The parameters for the chime seem to be when the situation exceeds the capability of the VSC. Kind of like a, "I've done all I've can, captain. The rest is up to physics and luck!"

 

Being a Hitchhiker's Guide to the Galaxy Fan--this comment made me laugh. If my Prius ever says this to me in the same voice as the Heart of Gold (ship from the books/movie), I'm going to have a heart attack.

 

That's rather infinitely improbable don't you think.

 

Thanks. I hate it when I waste a joke. In my case, that happens rather often.

Tom