Sudden Automatic Braking, VSC?

2011 TRD OR DCSB, 3" OME lift, 17" wheels/tires

Just regular speeds, about 25mph going around a turn, there's slight dip on the road, the VSC will activate and apply the brakes automatically or I'm assuming its the VSC. Tonight when this happened, it was actually rather scary as the car behind me had to slow suddenly also. I'm assuming when this happens, the brake lights are not coming on to alert others of the sudden slowing.

This is a bad thing to have come on. Especially if I'm just cruising, not speeding, the truck suddenly slows, I can't control the speed, and the person behind has no idea I'm slowing. Bad idea for Toyota to have this.

Anyone else experience this?

 

Yes

Sounds like a VSC engagement

Did you hear beeping and the pedals pulsed like an ABS engagement ?

 

Yep. I just read there's a button to turn it off. Strange though when it activates like this when I'm not even speeding and no where near sliding or losing control. It actually makes it more dangerous in scenarios like this.

If this is going to become a requirement on new vehicles, they need to have it activate the brake lights also.

Interesting read:
http://www.toyota.com/esq/articles/2010/VSC.html

 

no recalibration. Toyota does this I assume, free?

 

There is a pdf file in the first post of this thread that explains the recalibration of the skid control ecu , it helps but does not eliminate the issue .

http://www.tacomaworld.com/forum/suspension/41215-lift-vsc-answer.html

The lift has changed the geometry of the vehicle , and it now has a higher centre of gravity , I also assume you put larger tires than stock on , all of these factors make the computer think you are going into a tailslide or roll over condition and it engages the VSC system .

FWIW , I just have got in the habit of turning the VSC off when I start the truck . You hold the VSC ( car with skid marks ) button for approx 3-5 seconds until the VSC OFF light comes on .

I had my recalibration done at the dealer .

 

Ah, yes. Recalibration is in order then. Did the dealer charge you for that?

 

No , but I copied that pdf file and gave it to the tech .