[crazyin408]

I recently had a bad experience with my 850T. I was on the highway doing about 65 mph. When out of nowhere the car suddenly accelerated so fast I didnt know what to do. I panicked and pushed the brakes but That didnt help. The cars engine was going so fast that even pushing the brakes as hard as I could was not good enough. I was getting up to 100+ mph so I threw her in neutral and the rpms were in the red on my tach. So I got desperate and shut the key off ON THE HIGHWAY! With her still in Neutral I attempted to restart her to get off the road and avoid being nailed from behind. The first attempt the starter engaged but failed to start. The second attempt worked thankfully. I was able to get off the road and drive to a safe spot to look at what might have caused this.

So far I have found nothing. I have been driving around on short trips to see if there is a repeat. It tried to do this again but this time I was on a city street and accelerating. As I felt it happening again I let off and It stopped. What is going on? CAN SOMEONE PLEASE HELP ME FIGURE THIS OUT?

 

[heynow]

Call up the dealership. My volvo had a part recalled. What you described sounds familiar to the problem.

Dangerous situation to be in.

 

[BHart]

If it does it again, throw it into neutral BEFORE you get up too much speed. The rev limiter in the computer will keep the engine at redline but no higher - won't do any damage. Keeping it running will give you power steering and brakes so you can pull off the roadway safely. A good shop with proper diagnostic gear should be able to find something wrong.

And as Toyota say, 'check the floor mats'.