Jump to content
The mkiv Supra Owners Club

'Run-away' Toyota Prius's


SupraStar 3000

Recommended Posts

There's several things you can do as a driver if you're thinking straight, have sufficient presence of mind and a non-blinkered approach to what a car's controls do.

 

Unfortunately many drivers these days fail most/all of these criteria. I do accept it could be alarming if your brakes fail.

 

If I were in that situation, I'd like to think I'd have sufficient presence of mind to use the gears to slow down if possible, then on a straight bit of road key off the engine and immediately set the ignition back to the 2-position, to disengage the steering lock. The braking system should have a small number of "pumps" in it before you'd lose servo assistance: use those pumps wisely!

 

That should work on something like a supra, but I don't know if it would apply to the Prius' complex electronics.

Link to comment
Share on other sites

All good comments, have any of you actually been in a Prius? It's keyless, the key is in your pocket (on the latest model), so you can't 'switch off the engine', I have no idea what would happen if you pressed the 'START' button whilst driving - probably nothing. Also, there's no handbrake, only a footbrake (next to the 'foot' brake :blink: ), and a P button (which again, probably does nothing when driving). Plus, they're auto and the gearbox is electric, you have to hold it over N for a few seconds before it disengages D.

Basically it's all very confusing and not straight forward to slow down if the brakes fail or throttle sticks or whatever it is with Toyotas today.

Link to comment
Share on other sites

All good comments, have any of you actually been in a Prius? It's keyless, the key is in your pocket (on the latest model), so you can't 'switch off the engine', I have no idea what would happen if you pressed the 'START' button whilst driving - probably nothing. Also, there's no handbrake, only a footbrake (next to the 'foot' brake :blink: ), and a P button (which again, probably does nothing when driving). Plus, they're auto and the gearbox is electric, you have to hold it over N for a few seconds before it disengages D.

Basically it's all very confusing and not straight forward to slow down if the brakes fail or throttle sticks or whatever it is with Toyotas today.

 

 

That can't be 100% true, how on earth would you turn off the car when parking up? Put the handbrake on and walk away? lol

Link to comment
Share on other sites

I'm not sure how it works, but it's a very clever vehicle so I guessed it wouldn't let you turn the 'engine' (obviously the actual engine is off when you stop anyway) off when driving, only when you've stopped and put it into park or put the brakes on.

Link to comment
Share on other sites

That can't be 100% true, how on earth would you turn off the car when parking up? Put the handbrake on and walk away? lol

 

I would guess those Priuses are switching to electric engines once you drive slowly, so when you stop, it basically is not running at all. Once you go out and press "close" button" it switch itself off.

Anyway, I like to stick to older type cars where electronics does not spoil my driving experience :)

Link to comment
Share on other sites

what was wrong with a trhrottle cable connected to the peddle? i think cars should all revert back to early 90s technolighy with lastes safty standars.

 

AFAIK fly by wire throttle and brakes aren't allowed on the roads yet, and the Prius does have a cable. I think it was a case of the pedal mechanism sticking because of a missing metal plate on the pedal arm?

Link to comment
Share on other sites

AFAIK fly by wire throttle and brakes aren't allowed on the roads yet, and the Prius does have a cable.

 

Not entirely true, FBW throttles have been around for years. The Gen II Prius, as far as I know, has a FBW throttle, gear selector and push button start, which shortens the choices you have in an a run away situation. Toyota are claiming a worn mechanism in the pedal as the cause of this problem, even thought they are recalling Japanese only Prius's for software problems relating to braking and throttles...the plot thickens.

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. You might also be interested in our Guidelines, Privacy Policy and Terms of Use.